* Sec. "Architectures": correction on supported architecture in Linux

[developers-reference.git] / developers-reference.sgml

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<debiandoc>
<!--
 TODO:
  - bugs in upstream versions should be reported upstream!
  - add information on how to get accounts on different architectures
  - talk about CVS access, other ways to submit problems
  - add information on how you can contribute w/o being an official
    developer
  - "official port maintainer" ? (cf. glibc-pre2.1)
 -->

  <book>

      <title>Debian Developer's Reference
      <author>Adam Di Carlo, current maintainer <email/aph@debian.org/
      <author>Christian Schwarz <email/schwarz@debian.org/
      <author>Ian Jackson <email/ijackson@gnu.ai.mit.edu/
      <version>ver. &version;, &date;

      <copyright>
        <copyrightsummary>
copyright &copy;1998, 1999 Adam Di Carlo</copyrightsummary>
        <copyrightsummary>
copyright &copy;1997, 1998 Christian Schwarz</copyrightsummary>
        <p>
This manual is free software; you may redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
        <p>
This is distributed in the hope that it will be useful, but
<em>without any warranty</em>; without even the implied warranty of
merchantability or fitness for a particular purpose.  See the GNU
General Public License for more details.
        <p>
A copy of the GNU General Public License is available as
<file>/usr/doc/copyright/GPL</file> in the Debian GNU/Linux distribution
or on the World Wide Web at <url
id="http://www.gnu.org/copyleft/gpl.html" name="the GNU website">.
You can also obtain it by writing to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

    <toc detail="sect2">

    <chapt id="scope">Scope of This Document
      <p>
The purpose of this document is to provide an overview of the
recommended procedures and the available resources for Debian
developers.
      <p>
The procedures discussed within include how to become a maintainer
(<ref id="new-maintainer">); how to upload new packages (<ref
id="upload">); how and when to do ports and interim releases of other
maintainers' packages (<ref id="nmu">); how to move, remove, or orphan
packages (<ref id="archive-manip">); and how to handle bug reports
(<ref id="bug-handling">).
      <p>
The resources discussed in this reference include the mailing lists
and servers (<ref id="servers">); a discussion of the structure of the
Debian archive (<ref id="archive">); explanation of the different
servers which accept package uploads (<ref id="upload-master">); and a
discussion of resources which can help maintainers with the quality of
their packages (<ref id="tools">).
      <p>
It should be clear that this reference does not discuss the technical
details of the Debian package nor how to generate Debian packages;
that information is discussed in the <url
id="http://www.debian.org/doc/packaging-manuals/packaging.html/"
name="Debian Packaging Manual">.  Nor does this reference detail the
standards to which Debian software must comply; that information can
be found in the <url id="http://www.debian.org/doc/debian-policy/"
name="Debian Policy Manual">.
      <p>
Furthermore, this document is <em>not an expression of formal
policy</em>.  It contains documentation for the Debian system, and
generally agreed-upon best practices.


    <chapt id="new-maintainer">Applying to Become a Maintainer
        
      <sect>Getting started
        <p>
So, you've read all the documentation, you understand what everything
in the <package/hello/ example package is for, and you're about to
Debianize your favourite piece of software.  How do you actually
become a Debian developer so that your work can be incorporated into
the Project?
        <p>
Firstly, subscribe to <email/debian-devel@lists.debian.org/ if you
haven't already.  Send the word <tt/subscribe/ in the <em/Subject/ of
an email to <email/debian-devel-REQUEST@lists.debian.org/.  In case of
problems, contact the list administrator at
<email/listmaster@lists.debian.org/.  More information on available
mailing lists can be found in <ref id="mailing-lists">.
        <p>
You should subscribe and lurk for a bit before doing any coding, and
you should post about your intentions to work on something to avoid
duplicated effort.
        <p>
Another good list to subscribe to is
<email/debian-mentors@lists.debian.org/.  See <ref id="mentors"> for
details.  The IRC channel <tt/#debian/ on the Linux People IRC network 
(i.e., <tt/irc.debian.org/) can also be helpful.


      <sect id="registering">Registering as a Debian developer
        <p>
Before you decide to register with the Debian Project, you will need
to read the <url id="http://www.debian.org/social_contract"
name="Debian Social Contract">.  Registering as a developer means that
you agree with and pledge to uphold the Debian Social Contract; it is
very important that maintainers are in accord with the essential ideas
behind Debian GNU/Linux.  Reading the <url
id="http://www.gnu.org/gnu/manifesto.html" name="GNU Manifesto"> would
also be a good idea.
        <p>
The process of registering as a developer is a process of verifying
your identity and intentions.  As the number of people working on
Debian GNU/Linux has grown to over &number-of-maintainers; people and
our systems are used in several very important places we have to be
careful about being compromised.  Therefore, we need to verify new
maintainers before we can give them accounts on our servers and
letting them upload packages.
        <p>
Registration requires that the following information be sent to
<email/new-maintainer@debian.org/ as part of the registration
application:
<list>
            <item>
Your name.
            <item>
Your preferred login name on <tt/master/ (seven characters or
less<footnote>It is not clear to the author why logins on
<tt>master</tt> cannot be eight characters or greater.  If anyone can
clarify why, I would appreciate it.</footnote>), as well as the email
address at which you'd prefer to be subscribed to
<email/debian-private@lists.debian.org/ (typically this will be either
your primary mail address or your new <tt>debian.org</tt> address).
            <item>
A phone number where we can call you.  Remember that the new
maintainer team usually calls during evening hours to save on long
distance tolls.  Please do not give a work number, unless you are
generally there in the evening.
            <item>
A statement of intention, that is, what package(s) you intend to work
on, which Debian port you will be assisting, or how you intend to
contribute to Debian.
            <item>
A statement that you have read and agree to uphold the <url
id="http://www.debian.org/social_contract" name="Debian Social
Contract">.
            <item>
Some mechanism by which we can verify your real-life identity. For
example, any of the following mechanisms would suffice:
<list>
                  <item>
A PGP key signed by any well-known signature, such as:
<list>
                        <item>
Any current Debian developer you have met <em/in real life/.
                        <item>
Any formal certification service (such as Verisign, etc.) that
verifies your identity.  A certification that verifies your email
address, and not you identity, is not sufficient.
                      </list>
                  <item>
Alternatively, you may identify yourself with a scanned (or physically
mailed) copy of any formal documents certifying your identity (such as
a birth certificate, national ID card, U.S. Driver's License, etc.).
If emailed, please sign the mail with your PGP key.
                </list>
          </list>
        <p>
If you do not have a PGP key yet, generate one. Every developer needs
a PGP key in order to sign and verify package uploads. You should read
the PGP manual, since it has much important information which is
critical to its security.  Many more security failures are due to
human error than to software failure or high-powered spy techniques.
        <p>
Our standard is to use <prgn>pgp</prgn> version 2.x.  You can use
<prgn/pgp/ version 5, if and only if you make an RSA key.  Note that
we are also working with the <prgn/gpg/ team so that we can have a
free alternative to PGP; however, this may take a little bit of time.
        <p>
Your PGP key must be at least 1024 bits long.  There is no reason to
use a smaller key, and doing so would be much less secure.  Your key
must be signed with at least your own user ID.  This prevents user ID
tampering.  You can do it by executing <tt>pgp -ks
<var>your_userid</var></tt>.
        <p>
If your PGP key isn't on public key servers such as
<tt>pgp5.ai.mit.edu</tt>, please read the documentation available
locally <tt>/usr/doc/pgp/keyserv.doc</tt>.  That document contains
instructions on how to put your key on the public key servers.  The
New Maintainer Group will put your public key on the servers if it
isn't already there.
        <p>
Due to export restrictions by the United States government some Debian
packages, including PGP, have been moved to an ftp site outside of the
United States. You can find the current locations of those packages on
<ftpsite/ftp.debian.org/ or <ftpsite/ftp.us.debian.org/ in the
<ftppath>/pub/debian/README.non-US</ftppath> file.
        <p>
Some countries restrict the use of cryptographic software by their
citizens.  This need not impede one's activities as a Debian package
maintainer however, as it may be perfectly legal to use cryptographic
products for authentication, rather than encryption purposes (as is
the case in France).  The Debian Project does not require the use of
cryptography <em/qua/ cryptography in any manner.  If you live in a
country where use of cryptography even for authentication is forbidden
then please contact us so we can make special arrangements.
        <p>
Once you have all your information ready, and your public key is
available on public key servers, send a message to
<email/new-maintainer@debian.org/ to register as an offical Debian
developer so that you will be able to upload your packages.  This
message must contain all the information discussed above.  The message
must also contain your PGP or RSA public key (extracted using <tt>pgp
-kxa</tt> in the case of PGP) for the database of keys which is
distributed from <ftpsite/ftp.debian.org/ in
<ftppath>/pub/debian/doc/debian-keyring.tar.gz</ftppath>, or the
<package/debian-keyring/ package.  Please be sure to sign your request
message with your chosen public key.
        <p>
Once this information is received and processed, you should be
contacted with information about your new Debian maintainer account.
If you don't hear anything within 7-14 days, please send a followup
message asking if your original application was received.  Do <em/not/
re-send your original application, that will just confuse the
new-maintainer team. Please be patient, especially near release
points; mistakes do occasionally happen, and people do sometimes run
out of volunteer time.


      <sect id="mentors">Debian Mentors
        <p>
A mailing list called <email/debian-mentors@lists.debian.org/ which
has been set up for novice maintainers who seek help with initial
packaging and other developer-related issues.  Every new developer is
invited to subscribe to that list (see <ref id="mailing-lists"> for
details).
        <p>
Those who prefer one-on-one help (e.g., via private email) should
also post to that list and an experienced developer will volunteer to
help.


    <chapt id="user-maint">Maintaining Your Debian Information

      <sect id="key-maint">Maintaining Your Public Key
        <p>
Be very careful with your private keys.  Do not place them on any
public servers.  Back them up.  Read the documentation that comes with
your software (either PGP or GNUPG); read the FAQs too, for good
measure.
        <p>
If you add or remove signatures from your public key, or add or remove
user identities, you need to update the key servers and mail your
public key to <email>keyring-maint@debian.org</email>.
The same key extraction routines discussed in <ref id="registering">
apply.
        <p>
You can find a more in-depth discussion of Debian key maintenance in
the documentation for the <package>debian-keyring</package> package.

      <sect>Retiring Gracefully
        <p>
If you choose to leave the Debian project, you should make sure you do
the following steps:
<enumlist>
            <item>
Orphan all your packages, as described in <ref id="orphaning">.
            <item>
Send an email about how you are leaving the project to
<email>debian-private@lists.debian.org</email>.
            <item>
Notify the Debian key ring maintainers that you are leaving by emailing
to <email>keyring-maint@debian.org</email>.
          </enumlist>


    <chapt id="servers">Mailing Lists, Servers, and Other Machines
      <p>
In this chapter you will find a very brief road map of the Debian
mailing lists, the main Debian servers, and other Debian machines
which may be available to you as a developer.

      <sect id="mailing-lists">Mailing lists
        <p>
The mailing list server is at <tt/lists.debian.org/.  Mail
<tt/debian-<var/foo/-REQUEST@lists.debian.org/, where
<tt/debian-<var/foo// is the name of the list, with the word
<tt/subscribe/ in the <em/Subject/ to subscribe to the list or
<tt/unsubscribe/ to unsubscribe.  More detailed instructions on how to
subscribe and unsubscribe to the mailing lists can be found at <url
id="http://www.debian.org/MailingLists/subscribe">, <url
id="ftp://ftp.debian.org/debian/doc/mailing-lists.txt"> or locally in
<file>/usr/doc/debian/mailing-lists.txt</file> if you have the
<package>doc-debian</package> package installed.
        <p>
When replying to messages on the mailing list, please do not send a
carbon copy (<tt/CC/) to the original poster unless they explicitly
request to be copied.  Anyone who posts to a mailing list should read
it to see the responses.
        <p>
In addition, all messages should usually only be sent to one of the
following mailing lists: <email/debian-devel@lists.debian.org/,
<email/debian-policy@lists.debian.org/,
<email/debian-user@lists.debian.org/,
<email/debian-announce@lists.debian.org/, or
<email/debian-devel-announce@lists.debian.org/.  Additional mailing
lists are available for special purposes; see <url
id="http://www.debian.org/MailingLists/subscribe">.  Cross-posting
(sending the same message to multiple lists) is discouraged.
        <p>
<email/debian-private@lists.debian.org/ is a special mailing lists for
private discussions amongst Debian developers.  It is meant to be used
for posts which for whatever reason should not be published
publically.  As such, it is a low volume list, and users are urged not
to use <email/debian-private@lists.debian.org/ unless it is really
necessary.  Moreover, do <em/not/ forward email from that list to
anyone.
        <p>
As ever on the net, please trim down the quoting of articles you're
replying to.  In general, please adhere to the usual conventions for
posting messages.
        <p>
Online archives of mailing lists are available at <url
id="http://www.debian.org/Lists-Archives/">.

      <sect id="server-machines">Debian servers
        <p>
Debian servers are well known servers which serve critical functions
in the Debian project.  Every developer should know what these servers
are and what they do.
        <p>
If you have a problem with the operation of Debian server, and you
think that the system operators need to be notified of this problem,
please find the contact address for the particular role at <url
id="http://www.debian.org/devel/maintainer_contacts">.  If you have a
non-operating problems (such as packages to be remove, suggestions for
the web site, etc.), generally you'll report a bug against a
``pseudo-package''.  See <ref id="submit-bug"> for information on how
to submit bugs.

      <sect1 id="servers-master">The master server
        <p>
The master server, <tt/master.debian.org/, holds the canonical copy
of the Debian archive (excluding the non-U.S. packages). Generally,
package uploads go to this server; see <ref id="upload">. 
        <p>
<tt/master.debian.org/ is the canonical location for the Bug Tracking
System (BTS).  If you plan on doing some statistical analysis or
processing of Debian bugs, this would be the place to do it.  Please
describe your plans on <email/debian-devel@lists.debian.org/ before
implementing anything, however, to reduce unnecessary duplication of
effort or wasted processing time.
        <p>
All Debian developers have accounts on <tt/master.debian.org/.  Please
take care to protect your password to this machine.  Try to avoid
login or upload methods which send passwords over the Internet in the
clear.
        <p>
If you find a problem with <tt/master.debian.org/ such as disk full,
suspicious activity, or whatever, send an email to
<email>debian-admin@debian.org</email>.  Problems with the Debian FTP
archive generally need to be reported as bugs against the
<package>ftp.debian.org</package> pseudo-package, but also see the
procedures in <ref id="archive-manip">.

      <sect1 id="servers-www">The WWW servers
        <p>
The main web server, <tt/www.debian.org/, is also known as
<tt/va.debian.org/.  All developers are given accounts on this
machine.
        <p>
If you have some Debian-specific information which you want to serve
up on the web, you can do do this by putting material in the
<file>public_html</file> directory under your home directory.  You can do
this on either <tt/va.debian.org/ or <tt/master.debian.org/.  Any
material you put in those areas are accessible via the URLs
<tt>http://www.debian.org/~<var>user-id</var>/</tt> and
<tt>http://master.debian.org/~<var>user-id</var>/</tt>, respectively.
Generally, you'll want to use <tt/va/, for the <tt/www.debian.org/
address, although in some cases you may need to put it on <tt/master/.
Please do not put any material on Debian servers not relating to
Debian, unless you have prior permission. Send mail to
<email/debian-devel@lists.debian.org/ if you have any questions.
        <p>
If you find a problem with the Debian web server, you should generally
submit a bug against the pseudo-package,
<package>www.debian.org</package>.  First check whether or not someone
else has already reported the problem on the <url
id="http://www.debian.org/Bugs/db/pa/lwww.debian.org.html" name="Bug
Tracking System">.


      <sect1 id="servers-cvs">The CVS server
        <p>
<tt/cvs.debian.org/ is also known as <tt/va.debian.org/, discussed
above.  If you need the use of a publically accessible CVS server, for
instance, to help coordinate work on a package between many different
developers, you can request a CVS area on the server.
          <p>
Generally, <tt/cvs.debian.org/ offers a combination of local CVS
access, anonymous client-server read-only access, and full
client-server access through <prgn>ssh</prgn>.  Also, the CVS area can
be accessed read-only via the Web at <url
id="http://cvs.debian.org/cgi-bin/cvsweb">.
        <p>
To request a CVS area, send a request via email to
<email>debian-admin@debian.org</email>.  Include the name of the
requested CVS area, what <tt>va.debian.org</tt> user account should
own the CVSROOT, and why you need it.


      <sect1 id="servers-mirrors">Mirrors of Debian servers
        <p>
The web and FTP servers have several mirrors available.  Please do not
put heavy load on the canonical FTP or web servers.  Ideally, the
canonical servers only mirror out to a first tier of mirrors, and all
user access is to the mirrors.  This allows Debian to better spread
its bandwidth requirements over several servers and networks.  Note
that newer push mirroring techniques ensure that mirrors are as
up-to-date as they can be.
        <p>
The main web page listing the available public FTP (and, usually,
HTTP) servers can be found at <url
id="http://www.debian.org/distrib/ftplist">.  More information
concerning Debian mirrors can be found at <url
id="http://www.debian.org/mirror">.  This useful page includes
information and tools which can be helpful if you are interested in
setting up your own mirror, either for internal or public access.
        <p>
Note that mirrors are generally run by third-parties who are
interested in helping Debian.  As such, developers generally do not
have accounts on these machines.
        <p>
Please do not mirror off of <tt/master.debian.org/.  This host already
has too much load.  Check the sites above for information, or email
<email/debian-devel@lists.debian.org/.


      <sect id="other-machines">Other Debian Machines
        <p>
There are other Debian machines which may be made available to you.
You can use these for Debian-related purposes as you see fit.  Please
be kind to system administrators, and do not use up tons and tons of
disk space, network bandwidth, or CPU without first getting the
approval of the local maintainers.  Usually these machines are run by
volunteers.  Generally, these machines are for porting activities.
        <p>
Aside from the servers mentioned in <ref id="server-machines">, the
following machines are, or may be made, available to you.  If an email
address is listed, generally that person is the party to contact about
issues on the machine.  Otherwise, the machine is probably managed by
<email>debian-admin@debian.org</email>.

<taglist>
            <tag><tt>faure.debian.org</tt></tag>
            <item>
An Alpha; if you have an account on <tt>master</tt>, you probably
already have an account here.

            <tag><tt>kubrick.debian.org</tt></tag>
            <item>
A SPARC; if you have an account on <tt>master</tt>, you probably
already have an account here.

            <tag><tt>pandora.debian.org</tt></tag>
            <item>
An i386; if you have an account on <tt>master</tt>, you probably
already have an account here.

            <tag><tt>albert.debian.org</tt></tag>
            <item>
An Alpha; you probably want to use <tt>faure</tt> instead, but you may
request an account from <email>debian-admin@debian.org</email>.

            <tag><tt>powerpc.debian.org</tt></tag>
            <item>
A PowerPC; also known as <tt>tervola.infodrom.north.de</tt>. You may
request an account from <email>joey@debian.org</email> or
<email>koptein@debian.org</email>.

            <tag><tt>m68k.debian.org</tt></tag>
            <item>
A Motorola 6800x0 machine; you may request an account from
<email>joey@debian.org</email> or <email>james@nocrew.org</email>.
Runs an autobuilder.

            <tag><tt>alpha.debian.nl</tt></tag>
            <item>
An Alpha; you may request an account from
<email>debian@cistron.nl</email>.

            <tag><tt>xia0[123].kachinatech.com</tt></tag>
            <item>
SPARC and UltraSPARC machines.  <tt>xia0[12]</tt> are used for
automatic compilation; you can request an account on xia03 (an
UltraSPARC) from <email>wdeng@kachinatech.com</email>.

          </taglist>



    <chapt id="archive">The Debian Archive

      <sect>Overview
        <p>
The Debian GNU/Linux distribution consists of a lot of Debian packages
(<tt/.deb/'s, currently around &number-of-pkgs;) and a few additional files
(documentation, installation disk images, etc.).
        <p>
Here is an example directory tree of a complete Debian distribution:
        <p>
<example>
main/
main/binary-all/
main/binary-all/admin/
main/binary-all/base/
main/binary-all/comm/
main/binary-all/devel/
     ...
main/binary-i386/
main/binary-i386/admin/
main/binary-i386/base/
     ...
main/binary-m68k
main/binary-m68k/admin/
main/binary-m68k/base/
     ...
main/source/
main/source/admin/
main/source/base/
     ...
main/disks-i386/
main/disks-m68k/
     ...

contrib/
contrib/binary-all/
contrib/binary-i386/
contrib/binary-m68k/
     ...
contrib/source/

non-free/
non-free/binary-all/
non-free/binary-i386/
non-free/binary-m68k/
         ...
non-free/source/
</example>
        <p>
As you can see, the top-level directory of the distribution contains
three directories, namely <em/main/, <em/contrib/, and
<em/non-free/. These directories are called <em/sections/.
        <p>
In each section, there is a directory with the source packages
(source), a directory for each supported architecture
(<tt/binary-i386/, <tt/binary-m68k/, etc.), and a directory for
architecture independent packages (<tt/binary-all/).
        <p>
The <em/main/ section contains additional directories which holds the
disk images and some essential pieces of documentation required for
installing the Debian distribution on a specific architecture
(<tt/disks-i386/, <tt/disks-m68k/, etc.).
        <p>
The <em/binary/ and <em/source/ directories are divided further into
<em/subsections/.


      <sect>Sections
        <p>
The <em>main</em> section is what makes up the <em>official Debian
GNU/Linux distribution</em>.  The <em/main/ section is official because
it fully complies with all our guidelines.  The other two sections do
not, to different degrees; as such, they are not officially part of
Debian.
        <p>
Every package in the main section must fully comply with the <!-- work
around quoting of fragment idendifiers bug <url
id="http://www.debian.org/social_contract#guidelines" name="Debian
Free Software Guidelines"> --> <url
id="http://www.debian.org/social_contract" name="Debian Free Software
Guidelines"> (DFSG) and with all other policy requirements as
described in the <url id="http://www.debian.org/doc/debian-policy/"
name="Debian Policy Manual">.  The DFSG is our definition of ``free
software.'' Check out the Debian Policy Manual for details.
        <p>
The packages which do not apply to the DFSG are placed in the
<em/non-free/ section. These packages are not considered as part of
the Debian distribution, though we support their use, and we provide
infrastructure (such as our bug-tracking system and mailing lists) for
non-free software packages.
        <p>
Packages in the <em/contrib/ section have to comply with the DFSG, but
may fail other requirements.  For instance, they may depend on
non-free packages.
        <p>
The <url id="http://www.debian.org/doc/debian-policy/" name="Debian
Policy Manual"> contains a more exact definition of the three
sections. The above discussion is just an introduction.
        <p>
The separation of the three sections at the top-level of the archive
is important for all people who want to distribute Debian, either via
FTP servers on the Internet or on CD-ROMs: by distributing only the
<em/main/ and <em/contrib/ sections, one can avoid any legal risks.
Some packages in the <em/non-free/ section do not allow commercial
distribution, for example.
        <p>
On the other hand, a CD-ROM vendor could easily check the individual
package licenses of the packages in <em/non-free/ and include as many
on the CD-ROMs as he's allowed. (Since this varies greatly from vendor
to vendor, this job can't be done by the Debian developers.)


      <sect>Architectures
        <p>
In the first days, the Linux kernel was only available for the Intel
i386 (or greater) platforms, and so was Debian. But when Linux became
more and more popular, the kernel was ported to other architectures,
too.
        <p>
The Linux 2.0 kernel supports Intel x86, DEC Alpha, SPARC, Motorola
680x0 (like Atari, Amiga and Macintoshes), MIPS, and PowerPC.
The Linux 2.2 kernel supports even more architectures, including ARM
and UltraSPARC.  Since Linux supports these platforms, Debian decided
that it should, too.  Therefore, Debian has ports underway.  In fact,
we also have ports underway to non-Linux kernel.  Aside from
<em>i386</em> (our name for Intel x86), there is <em>m68k</em>,
<em>alpha</em>, <em>powerpc</em>, <em>sparc</em>, <em>hurd-i386</em>,
and <em>arm</em>, as of this writing.

        <p>
Debian GNU/Linux 1.3 is only available as <em>i386</em>.  Debian 2.0
shipped for <em>i386</em> and <em>m68k</em> architectures.  Debian 2.1
ships for the <em>i386</em>, <em>m68k</em>, <em>alpha</em>, and
<em>sparc</em> architectures.


      <sect>Subsections
        <p>
The sections <em/main/, <em/contrib/, and <em/non-free/ are split into
<em/subsections/ to simplify the installation process and the
maintainance of the archive.  Subsections are not formally defined,
excepting perhaps the `base' subsection.  Subsections exist simply
to simplify the organization and browsing of available packages.
Please check the current Debian distribution to see which sections are
available.


      <sect>Packages
        <p>
There are two types of Debian packages, namely <em/source/ and
<em/binary/ packages.
        <p>
Source packages consist of either two or three files: a <tt/.dsc/
file, and either a <tt/.tar.gz/ file or both an <tt/.orig.tar.gz/ and
a <tt/.diff.gz/ file.
        <p>
If a package is developed specially for Debian and is not distributed
outside of Debian, there is just one <tt/.tar.gz/ file which contains
the sources of the program.  If a package is distributed elsewhere
too, the <tt/.orig.tar.gz/ file stores the so-called <em/upstream
source code/, that is the source code that's distributed from the
<em/upstream maintainer/ (often the author of the software). In this
case, the <tt/.diff.gz/ contains the changes made by the Debian
maintainer.
        <p>
The <tt/.dsc/ lists all the files in the source package together with
checksums (md5sums) and some additional info about the package
(maintainer, version, etc.).


      <sect>Distribution directories
        <p>
The directory system described in the previous chapter, are themselves
contained within <em/distribution directories/.  Every distribution is
contained in the <tt/dists/ directory in the top-level of the Debian
archive itself (the symlinks from the top-level directory to the
distributions themselves are for backwards compatability and are
deprecated).
        <p>
To summarize, the Debian archive has a root directory within an FTP
server.  For instance, at the mirror site,
<ftpsite>ftp.us.debian.org</ftpsite>, the Debian archive itself is
contained in <ftppath>/debian</ftppath>, which is a common location
(another is <ftppath>/pub/debian</ftppath>).
        <p>
Within that archive root, the actual distributions are contained in
the <tt/dists/ directory.  Here is an overview of the layout:
        <p>
<example>
<var>archive root</var>/dists/<var>distribution</var>/<var>section</var>/<var>architecture</var>/<var>subsection</var>/<var>packages</var>
</example>

Extrapolating from this layout, you know that to find the i386 base
packages for the distribution <em/slink/, you would look in
<ftppath>/debian/dists/slink/main/binary-i386/base/</ftppath>.

        <sect1>Stable, unstable, and sometimes frozen
        <p>
There is always a distribution called <em/stable/ (residing in
<tt>dists/stable</tt>) and one called <em/unstable/ (residing in
<tt>dists/unstable</tt>). This reflects the development process of the
Debian project.
        <p>
Active development is done in the <em/unstable/ distribution (that's
why this distribution is sometimes called the <em/development
distribution/). Every Debian developer can update his or her packages
in this distribution at any time. Thus, the contents of this
distribution change from day-to-day. Since no special effort is done
to test this distribution, it is sometimes ``unstable.''
        <p>
After a period of development, the <em/unstable/ distribution is
copied in a new distribution directory, called <em/frozen/. When that
occurs, no changes are allowed to the frozen distribution except bug
fixes; that's why it's called ``frozen.''  After another month or a
little longer, the <em/frozen/ distribution is renamed to <em/stable/,
overriding the old <em/stable/ distribution, which is removed at that
time.
        <p>
This development cycle is based on the assumption that the
<em/unstable/ distribution becomes <em/stable/ after passing a period
of testing as <em/frozen/.  Even once a distribution is considered
stable, a few bugs inevitably remain--that's why the stable
distribution is updated every now and then. However, these updates are
tested very carefully and have to be introduced into the archive
individually to reduce the risk of introducing new bugs.  You can find
proposed additions to <em/stable/ in the <tt/proposed-updates/
directory.  Those packages in <tt/proposed-updates/ that pass muster
are periodically moved as a batch into the stable distribution and the
revision level of the stable distribution is incremented (e.g., `1.3'
becomes `1.3r1', `2.0r2' becomes `2.0r3', and so forth).
        <p>
Note that development under <em/unstable/ is continued during the
``freeze'' period, since a new <em/unstable/ distribution is be
created when the older <em/unstable/ is moved to <em/frozen/.
Another wrinkle is that when the <em/frozen/ distribution is offically 
released, the old stable distribution is completely removed from the
Debian archives (although you can still find it from servers which
serve up older, obsolete distributions).
        <p>
In summary, there is always a <em/stable/ and an <em/unstable/
distribution available, and the <em/frozen/ distribution shows up for
a month or so from time to time.


        <sect1>Experimental
          <p>
The <em/experimental/ distribution is a specialty distribution.  It is
not a full distribution in the same sense that `stable' and `unstable'
are.  Instead, it is meant to be a temporary staging area for highly
experimental software where there's a good chance that the software
could break your system.  Users who download and install packages from
<em/experimental/ are expected to have been duly warned.  In short,
all bets are off for the <em/experimental/ distribution.
          <p>
Developers should be very selective in the use of the
<em/experimental/ distribution.  Even if a package is highly unstable,
it could well still go into <em/unstable/; just state a few warnings
in the description.  However, if there is a chance that the software
could do grave damage to a system, it might be better to put it into
<em/experimental/.
          <p>
For instance, an experimental encrypted file system should probably go
into <em>experimental</em>.  A new, beta, version of some software
which uses completely different configuration might go into
<em>experimental</em> at the maintainer's discretion.  New software
which isn't likely to damage your system can go into
<em>unstable</em>.  If you are working on an incompatible or complex
upgrade situation, you can also use <em>experimental</em> as a staging
area, so that testers can get early access.
          <p>
However, using <em>experimental</em> as a personal staging area is not
always the best idea.  You can't replace or upgrade the files in there
on your own (<prgn>dinstall</prgn> and the Debian archive maintainers
do that).  Additionally, you'll have to remember to ask the archive
maintainers to delete the package one you have uploaded it to
<em>unstable</em>.  Using your personal web space on
<tt>va.debian.org</tt> is generally a better idea, so that you put
less strain on the Debian archive maintainers.


      <sect id="codenames">Release code names
        <p>
Every released Debian distribution has a <em/code name/: Debian 1.1 is
called `buzz'; Debian 1.2, `rex'; Debian 1.3, `bo'; Debian 2.0,
`hamm'; Debian 2.1, `slink'; and Debian 2.2, `potato'.  There is
also a ``pseudo-distribution'', called `sid' which is contains
packages for architectures which are not yet officially supported or
released by Debian.  These architectures are planned to be integrated
into the mainstream distribution at some future date.
        <p>
Since the Debian has an open development model (i.e., everyone can
participate and follow the development) even the unstable distribution
is distributed via the Internet on the Debian FTP and HTTP server
network. Thus, if we had called the directory which contains the
development version `unstable', then we would have to rename it
to `stable' when the version is released, which would cause all FTP
mirrors to re-retrieve the whole distribution (which is already very
large!).
        <p>
On the other hand, if we called the distribution directories
<em>Debian-x.y</em> from the beginning, people would think that Debian
release <em>x.y</em> is available. (This happened in the past, where a
CD-ROM vendor built a Debian 1.0 CD-ROM based on a pre-1.0 development
version. That's the reason why the first official Debian release was
1.1, and not 1.0.)
        <p>
Thus, the names of the distribution directories in the archive are
determined by their code names and not their release status (i.e.,
`slink').  These names stay the same during the development period
and after the release; symbolic links, which can be changed, are made
to indicate the currently released stable distribution.  That's why
the real distribution directories use the <em/code names/ and symbolic
links for <em/stable/, <em/unstable/, and <em/frozen/ point to the
appropriate release directories.


    <chapt id="upload">Package uploads

      <sect>Announcing new packages
        <p>
If you want to create a new package for the Debian distribution, you
should first check the <url
id="http://www.debian.org/doc/prospective-packages.html"
name="Work-Needing and Prospective Packages (WNPP)"> list.  Checking
the WNPP ensures that no one is already working on packaging that
software, and that effort is not duplicated. Assuming no one else is
already working on your prospective package, you must then send a
short email to <email/debian-devel@lists.debian.org/ describing your
plan to create a new package.  You should set the subject of the email
to ``intent to package <var/foobar/'', substituting the name of the new
package for <var/foobar/.
        <p>
There are a number of reasons why we ask maintainers to follow these
steps:
          <list compact>
            <item>
It helps the (potentially new) maintainer to tap into the experience
of people on the list, and lets them know if any one else is working
on it already.
            <item>
It lets other people thinking about working on the package know that
there already is a volunteer, and efforts may be shared.  The ``intent
to package'' message to <email/debian-devel@lists.debian.org/ will be
picked up the the WNPP maintainer, and your intention will be
published in subsequent versions of the WNPP document.
            <item>
It lets the rest of the maintainers know more about the package than
the one line description and the changelog entry ``Initial version''
that generally gets posted to <tt/debian-devel-changes/ by default.
            <item>
It is helpful to the people who live off unstable (and form our first
line of testers); we should encourage these people.
            <item>
The announcements give maintainers and other interested parties a
better feel of what is going on, and what is new, in the project.
          </list>


      <sect id="uploading">Uploading a package

        <sect1>Generating the changes file
          <p>
When a package is uploaded to the Debian FTP archive, it must be
accompanied by a <tt/.changes/ file, which gives directions to the
archive maintainers for its handling.  This is usually generated by
<prgn/dpkg-genchanges/ during the normal package build process.
          <p>
The changes file is a control file with the following fields:
          <p>
<list compact>
              <item><tt/Format/
              <item><tt/Date/
              <item><tt/Source/
              <item><tt/Binary/
              <item><tt/Architecture/
              <item><tt/Version/
              <item><tt/Distribution/
              <item><tt/Urgency/
              <item><tt/Maintainer/
              <item><tt/Description/
              <item><tt/Changes/
              <item><tt/Files/
            </list>
          <p>
All of these fields are mandatory for a Debian upload.  See the list
of control fields in the <url
id="http://www.debian.org/doc/packaging-manuals/packaging.html/"
name="Debian Packaging Manual"> for the contents of these fields.
Only the <tt/Distribution/ field is discussed here, since it relates
to the archive maintenance policies.

        <sect1 id="upload-dist">Picking a distribution
          <p>
Notably, the <tt/Distribution/ field, which originates from the
<file>debian/changelog</file> file, indicates which distribution the
package is intended for.  There are four possible values for this
field: `stable', `unstable', `frozen', or `experimental'; these values
can also be combined.  For instance, if you have a crucial security
fix release of a package, and the package has not diverged between the
<em/stable/ and <em/unstable/ distributions, then you might put
`stable unstable' in the <file>changelog</file>'s <tt/Distribution/ field.
Or, if Debian has been frozen, and you want to get a bug-fix release
into <em/frozen/, you would set the distribution to `frozen unstable'.
(See <ref id="upload-frozen"> for more information on when to upload to
<em/frozen/.)  Note that setting the distribution to `stable' means
that the package will be placed into the <tt>proposed-updates</tt>
directory of the Debian archive for further testing before it is
actually included in <em/stable/.  Also note that it never makes sense
to combine the <em/experimental/ distribution with anything else.
          <p>
The first time a version is uploaded which corresponds to a particular
upstream version the original source tar file should be uploaded and
included in the <tt/.changes/ file; subsequent times the very same tar
file should be used to build the new diffs and <tt/.dsc/ files, and it
need not then be uploaded.
          <p>
By default <prgn/dpkg-genchanges/ and <prgn/dpkg-buildpackage/ will
include the original source tar file if and only if the Debian
revision part of the source version number is <tt/0/ or <tt/1/,
indicating a new upstream version.  This behaviour may be modified by
using <tt/-sa/ to always include it or <tt/-sd/ to always leave it
out.
          <p>
If no original source is included in the upload then the original
source tar-file used by <prgn/dpkg-source/ when constructing the
<tt/.dsc/ file and diff to be uploaded <em/must/ be byte-for-byte
identical with the one already in the archive.  If there is some
reason why this is not the case then the new version of the original
source should be uploaded, possibly by using the <tt/-sa/ flag.

          <sect2 id="upload-frozen">Uploading to <em/frozen/
            <p>
The Debian freeze is a crucial time for Debian.  It is our chance to
synchronize and stabilize our distribution as a whole.  Therefore,
care must be taken when uploading to <em/frozen/.
            <p>
It is tempting to always try to get the newest release of software
into the release.  However, it's much more important that the system
as a whole is stable and works as expected.
            <p>
The watchword for uploading to <em/frozen/ is <strong>no new
code</strong>.  This is a difficult thing to quantify, so here are
some guidelines:
            <p>
<list>
                <item>
Fixes for bugs of severity <em/critical/, <em/grave/, or
<em/important/ severity are always allowed for those packages that
must exist in the final release
                <item>
<em/critical/, <em/grave/, and <em/important/ bug fixes are only
allowed for non-necessary packages if they don't add any new features
                <item>
normal bug fixes are allowed (though discouraged) on all packages if
and only if there are no new features
                <item>
wishlist fixes are not allowed (they are, after all, not really bugs)
                <item>
documentation bug fixes are allowed, since good documentation is
important
              </list>
            <p>
Remember, there is statistically a 15% chance that every bug fix will
introduce a new bug.  The introduction and discovery of new bugs
either delays release or weakens the final product.  There is little
correlation between the severity of the original bug and the severity
of the introduced bug.



        <sect1 id="upload-checking">Checking the package prior to upload
          <p>
Before you upload your package, you should do basic testing on it.
Make sure you try the following activities (you'll need to have an
older version of the Debian package around).
<list>
              <item>
Install the package and make sure the software works, or upgrade the
package from an older version to your new version if a Debian package
for it already exists.
              <item>
Run <prgn/lintian/ over the package.  You can run <prgn/lintian/ as
follows: <tt>lintian -v <var>package-version</var>.changes</tt>. This will
check the source package as well as the binary package.  If you don't
understand the output that <prgn/lintian/ generates, try adding the
<tt/-i/ switch, which will cause <prgn/lintian/ to output a very
verbose description of the problem.
                <p>
Normally, a package should <em/not/ be uploaded if it causes lintian
to emit errors (they will start with <tt/E/).
                <p>
For more information on <prgn/lintian/, see <ref id="lintian">.
              <item>
Downgrade the package to the previous version (if one exists) -- this
tests the <tt/postrm/ and <tt/prerm/ scripts.
              <item>
Remove the package, then reinstall it.
            </list>


        <sect1 id="upload-master">Uploading to <tt/master/
          <p>
To upload a package, you need a personal account on
<ftpsite>master.debian.org</ftpsite>.  All maintainers should already
have this account, see <ref id="servers-master">.  You can use either
<prgn/ssh/ or <prgn/ftp/ to transfer the files.  In either case, the
files need to be placed into
<ftppath>/home/Debian/ftp/private/project/Incoming</ftppath>.  (You
cannot upload to Incoming on master using anonymous FTP -- you must
use your user-name and password.)
          <p>
<em/Note:/ Do not upload packages containing software that is
export-controlled by the United States government to <tt/master/, or
to the overseas upload queues on <tt/chiark/ or <tt/erlangen/.  This
prohibition covers almost all cryptographic software, and even
sometimes software that contains ``hooks'' to cryptographic software,
such as electronic mail readers that support PGP encryption and
authentication.  Uploads of such software should go to <tt/non-us/
(see below).  If you are not sure whether U.S. export controls apply
to your package, post a message to
<email/debian-devel@lists.debian.org/ and ask.
          <p>
You may also find the Debian package <package/dupload/ useful when
uploading packages.  This handy program is distributed with defaults
for uploading via <prgn/ftp/ to <tt/master/, <tt/chiark/, and
<tt/erlangen/.  It can also be configured to use <prgn/ssh/.  See
<manref name="dupload" section="1"> and <manref name="dupload"
section="5"> for more information.


        <sect1>Uploads via <tt/chiark/
          <p>
If you have a slow network connection to <tt/master/, there are
alternatives.  One is to upload files to <tt/Incoming/ via a
cron-driven upload queue in Europe on <tt/chiark/. For details connect
to <ftpsite>ftp.chiark.greenend.org.uk</ftpsite> using anonymous FTP
and read
<ftppath>/pub/debian/private/project/README.how-to-upload</ftppath>.
          <p>
<em/Note:/ Do not upload packages containing software that is
export-controlled by the United States government to the queue on
<tt/chiark/.  Since this upload queue goes to <tt/master/, the
prescription found in <ref id="upload-master"> applies here as well.
          <p>
The program <tt/dupload/ supports uploads to <tt/chiark/; please refer
to the documentation that comes with the program for details.


        <sect1>Uploads via <tt/erlangen/
          <p>
Another cron-driven upload queue is available in Germany: just upload
the files via anonymous FTP to <url
id="ftp://ftp.uni-erlangen.de/pub/Linux/debian/UploadQueue">.
          <p>
The upload must be a complete Debian upload, as you would put it into
<tt/master/'s <tt/Incoming/, i.e., a <tt/.changes/ files along with the
other files mentioned in the <tt/.changes/. The queue daemon also
checks that the <tt/.changes/ is correctly PGP-signed by a Debian
developer, so that no bogus files can find their way to <tt/master/
via the queue. Please also make sure that the <tt/Maintainer/ field
in the <tt/.changes/ contains <em/your/ e-mail address. The address
found there is used for all replies, just as on <tt/master/.
          <p>
There's no need to move your files into a second directory after the
upload as on <tt/chiark/. And, in any case, you should get some mail
reply from the queue daemon what happened to your upload. Hopefully it
should have been moved to <tt/master/, but in case of errors you're
notified, too.
          <p>
<em/Note:/ Do not upload packages containing software that is
export-controlled by the United States government to the queue on
<tt/erlangen/.  Since this upload queue goes to <tt/master/, the
prescription found in <ref id="upload-master"> applies here as well.
          <p>
The program <prgn/dupload/ supports uploads to <tt/erlangen/; please refer
to the documentation that comes with the program for details.


        <sect1>Uploading to the non-us server
          <p>
To upload a package to the <em/non-us/ server you just have to
transfer the files via anonymous ftp to <url
id="ftp://non-us.debian.org/pub/debian-non-US/Incoming">.  Note, that
the <tt>.changes</tt> file must have a valid PGP signature from one of
the keys of the developers key-ring.


      <sect id="upload-announce">Announcing package uploads
        <p>
When a package is uploaded an announcement should be posted to one of
the ``debian-changes'' lists. The announcement should give the (source)
package name and version number, and a very short summary of the
changes, in the <em/Subject/ field, and should contain the PGP-signed
<tt/.changes/ file.  Some additional explanatory text may be added
before the start of the <tt/.changes/ file.
        <p>
If a package is released with the <tt/Distribution:/ set to
`stable', the announcement is sent to
<email/debian-changes@lists.debian.org/.  If a package is released
with <tt/Distribution:/ set to `unstable', `experimental', or
`frozen' (when present), the announcement should be posted to
<email/debian-devel-changes@lists.debian.org/ instead.
        <p>
On occasion, it is necessary to upload a package to both the
<em/stable/ and <em/unstable/ distributions; this is done by putting
both distributions in the <tt/Distribution:/ line.  In such a case the
upload announcement should go to both of the above mailing lists.
        <p>
The <prgn/dupload/ program is clever enough to determine for itself
where the announcement should go, and will automatically mail the
announcement to the right list.  See <ref id="dupload">.

      <sect id="upload-notification">Notification that a new package has been installed
        <p>
The Debian archive maintainers are responsible for handling package
uploads.  For the most part, uploads are automatically handled on a
daily basis by an archive maintenance tool called <prgn/dinstall/.
Specifically, updates to existing packages to the `unstable'
distribution are handled automatically. In other cases, notably new
packages, placing the uploaded package into the distribution is
handled manually. When uploads are handled manually, the change to the
archive may take up to a week to occur (please be patient).
        <p>
In any case, you will receive notification indicating that the package
has been uploaded via email.  Please examine this notification
carefully.  You may notice that the package didn't go into the section
you thought you set it to go into.  Read on for why.

        <sect1 id="override-file">The override file
          <p>
The <file>debian/control</file> file's <tt/Section/ and <tt/Priority/
fields do not actually specify where the file will be placed in the
archive, nor its priority.  In order to retain the overall integrity
of the archive, it is the archive maintainers who have control over
these fields.  The values in the <file>debian/control</file> file are
actually just hints.
          <p>
The archive maintainers keep track of the canonical sections and
priorities for packages in the <em/override file/.  Sometimes the
<em/override file/ needs correcting.  Simply changing the package's
<file>control</file> file is not going to work.  Instead, you should email
<email/override-change@debian.org/ or submit a bug against
<package/ftp.debian.org/.
          <p>
For more information about <em/override files/, see
<manref name="dpkg-scanpackages" section="8"/>,
<file>/usr/doc/debian/bug-log-mailserver.txt</file>, and
<file>/usr/doc/debian/bug-maint-info.txt</file>.



    <chapt id="nmu">Non-Maintainer Uploads (NMUs)
      <p>
Under certain circumstances it is necessary for someone other than the
official package maintainer to make a release of a package.  This is
called a non-maintainer upload, or NMU.
       <p>
Debian porters, who compile packages for different architectures, do
NMUs as part of their normal porting activity (see <ref
id="porting">).  Another reason why NMUs are done is when a Debian
developers needs to fix another developers' packages in order to
address serious security problems or crippling bugs, especially during
the freeze, or when the package maintainer is unable to release a fix
in a timely fashion.
      <p>
This chapter contains information providing guidelines for when and
how NMUs should be done.  A fundamental distinction is made between
source and binary NMUs, which is explained in the next section.

      <sect id="nmu-terms">Terminology
        <p>
There are two new terms used throughout this section: ``binary NMU''
and ``source NMU''.  These terms are used with specific technical
meaning throughout this document.  Both binary and source NMUs are
similar, since they involve an upload of a package by a developer who
is not the official maintainer of that package.  That is why it's a
<em/non-maintainer/ upload.
        <p>
A source NMU is a upload of a package by a developer who is not the
official maintainer, for the purposes of fixing a bug in the package.
Source NMUs always involves changes to the source (even if it is just
a change to <file>debian/changelog</file>).  This can be either a change
to the upstream source, or a change to the Debian bits of the source.
        <p>
A binary NMU is a recompilation and upload of a binary package for a
new architecture.  As such, it is usually part of a porting effort.  A
binary NMU is non-maintainer uploaded binary version of a package
(often for another architecture), with no source changes required.
There are many cases where porters must fix problems in the source in
order to get them to compile for their target architecture; that would
be considered a source NMU rather than a binary NMU.  As you can see,
we don't distinguish in terminology between porter NMUs and non-porter
NMUs.
        <p>
Both classes of NMUs, source and binary, can be lumped by the term
``NMU''.  However, this often leads to confusion, since most people
think ``source NMU'' when they think ``NMU''.  So it's best to be
careful.  In this chapter, if I use the unqualified term ``NMU'', I
mean both source and binary NMUs.


      <sect id="nmu-who">Who can do an NMU
        <p>
Only official, registered Debian maintainers can do binary or source
NMUs.  An official maintainer is someone who has their key in the
Debian key ring.  Non-developers, however, are encouraged to download
the source package and start hacking on it to fix problems; however,
rather than doing an NMU, they should just submit worthwhile patches
to the Bug Tracking System.  Maintainers almost always appreciate
quality patches and bug reports.


      <sect id="nmu-when">When to do a source NMU
        <p>
Guidelines for when to do a source NMU depend on the target
distribution, i.e., stable, unstable, or frozen.  Porters have
slightly different rules than non-porters, due to their unique
circumstances (see <ref id="source-nmu-when-porter">).
        <p>
Only critical changes or security bug fixes make it into stable.  When
a security bug is detected a fixed package should be uploaded as soon
as possible. In this case, the Debian Security Managers should get in
contact with the package maintainer to make sure a fixed package is
uploaded within a reasonable time (less than 48 hours). If the package
maintainer cannot provide a fixed package fast enough or if he/she
cannot be reached in time, the Security Manager may upload a fixed
package (i.e., do a source NMU).
        <p>
During the release freeze (see <ref id="upload-frozen">), NMUs which
fix important or higher severity bugs are encouraged and accepted.
Even during this window, however, you should endeavor to reach the
current maintainer of the package; they might be just about to upload
a fix for the problem.  As with any source NMU, the guidelines found
in <ref id="nmu-guidelines"> need to be followed.
        <p>
Bug fixes to unstable by non-maintainers are also acceptable, but only
as a last resort or with permission.  Try the following steps first,
and if they don't work, it is probably OK to do an NMU:
        <p>
<list>
            <item>
Make sure that the package bug is in the Debian Bug Tracking System
(BTS).  If not, submit a bug.
            <item>
Email the maintainer, and offer to help fix the package bug.  Give it a 
few days.
            <item>
Go ahead and fix the bug, submitting a patch to the right bug in the
BTS.  Build the package and test it as discussed in <ref
id="upload-checking">.  Use it locally.
            <item>
Wait a couple of weeks for a response.
            <item>
Email the maintainer, asking if it is OK to do an NMU.
            <item>
Double check that your patch doesn't have any unexpected side effects.
Make sure your patch is as small and as non-disruptive as it can be.
            <item>
Wait another week for a response.
            <item>
Go ahead and do the source NMU, as described in <ref
id="nmu-guidelines">.
          </list>



      <sect id="nmu-guidelines">How to do a source NMU
        <p>
The following applies to porters insofar as they are playing the dual
role of being both package bug-fixers and package porters.  If a
porter has to change the Debian source archive, automatically their
upload is a source NMU and is subject to its rules.  If a porter is
simply uploading a recompiled binary package, the rules are different;
see <ref id="porter-guidelines">.
        <p>
First and foremost, it is critical that NMU patches to source should
be as non-disruptive as possible.  Do not do housekeeping tasks, do
not change the name of modules or files, do not move directories; in
general, do not fix things which are not broken.  Keep the patch as
small as possible.  If things bother you aesthetically, talk to the
Debian maintainer, talk to the upstream maintainer, or submit a bug.
However, aesthetic changes must <em/not/ be made in a non-maintainer
upload.


        <sect1 id="nmu-version">Source NMU version numbering
          <p>
Whenever you have made a change to a package, no matter how trivial,
the version number needs to change.  This enables our packing system
to function.
          <p>
If you are doing a non-maintainer upload (NMU), you should add a new
minor version number to the <var/debian-revision/ part of the version
number (the portion after the last hyphen).  This extra minor number
will start at `1'.  For example, consider the package `foo', which is
at version 1.1-3.  In the archive, the source package control file
would be <file>foo_1.1-3.dsc</file>.  The upstream version is `1.1' and
the Debian revision is `3'.  The next NMU would add a new minor number
`.1' to the Debian revision; the new source control file would be
<file>foo_1.1-3.1.dsc</file>.
          <p>
The Debian revision minor number is needed to avoid stealing one of
the package maintainer's version numbers, which might disrupt their
work.  It also has the benefit of making it visually clear that a
package in the archive was not made by the official maintainer.
          <p>
If there is no <var/debian-revision/ component in the version number
then one should be created, starting at `0.1'.  If it is absolutely
necessary for someone other than the usual maintainer to make a
release based on a new upstream version then the person making the
release should start with the <var/debian-revision/ value `0.1'.  The
usual maintainer of a package should start their <var/debian-revision/
numbering at `1'.  Note that if you do this, you'll have to invoke
<prgn>dpkg-buildpackage</prgn> with the <tt/-sa/ switch to force the
build system to pick up the new source package (normally it only looks
for Debian revisions of '0' or '1' -- it's not yet clever enough to
know about `0.1').
          <p>
Remember, porters who are simply recompiling a package for a different
architecture do not need to renumber.  Porters should use new version
numbers if and only if they actually have to modify the source package
in some way, i.e., if they are doing a source NMU and not a binary
NMU.


        <sect1 id="nmu-changelog">Source NMUs must have a new changelog entry
          <p>
A non-maintainer doing a source NMU must create a changelog entry,
describing which bugs are fixed by the NMU, and generally why the NMU
was required and what it fixed.  The changelog entry will have the
non-maintainer's email address in the log entry and the NMU version
number in it.
          <p>
By convention, source NMU changelog entries start with the line
<example>
  * Non-maintainer upload
</example>


        <sect1 id="nmu-patch">Source NMUs and the Bug Tracking System
          <p>
Maintainers other than the official package maintainer should make as
few changes to the package as possible, and they should always send a
patch as a unified context diff (<tt/diff -u/) detailing their
changes to the Bug Tracking System.
          <p>
What if you are simply recompiling the package?  In this case, the
process is different for porters than it is for non-porters, as
mentioned above.  If you are not a porter and are doing an NMU that
simply requires a recompile (i.e., a new shared library is available
to be linked against, a bug was fixed in <package/debhelper/), there
must still be a changelog entry; therefore, there will be a patch.  If
you are a porter, you are probably just doing a binary NMU.  (Note:
this leaves out in the cold porters who have to do recompiles -- chalk
it up as a weakness in how we maintain our archive.)
          <p>
If the source NMU (non-maintainer upload) fixes some existing bugs,
the bugs in the Bug Tracking System which are fixed need to be
<em/notified/ but not actually <em/closed/ by the non-maintainer.
Technically, only the official package maintainer or the original bug
submitter are allowed to close bugs.  However, the person making the
non-maintainer release must send a short message to the relevant bugs 
explaining that the bugs have been
fixed by the NMU.  Using <email/control@bugs.debian.org/, the party
doing the NMU should also set the severity of the bugs fixed in the
NMU to `fixed'.  This ensures that everyone knows that the bug was
fixed in an NMU; however the bug is left open until the changes in the
NMU are incorporated officially into the package by the official
package maintainer.  Also, open a bug with the patches needed to 
fix the problem, or make sure that one of the other (already open) bugs
has the patches.
          <p>
The normal maintainer will either apply the patch or employ an
alternate method of fixing the problem.  Sometimes bugs are fixed
independently upstream, which is another good reason to back out an
NMU's patch.  If the maintainer decides not to apply the NMU's patch
but to release a new version, the maintainer needs to ensure that the
new upstream version really fixes each problem that was fixed in the
non-maintainer release.
          <p>
In addition, the normal maintainer should <em/always/ retain the entry
in the changelog file documenting the non-maintainer upload.


        <sect1 id="nmu-build">Building source NMUs
          <p>
Source NMU packages are built normally.  Pick a distribution using the
same rules as found in <ref id="upload-dist">.  Just as described in
<ref id="uploading">, a normal changes file, etc., will be built.  In
fact, all the prescriptions from <ref id="upload"> apply, including
the need to announce the NMU to the proper lists.
          <p>
Make sure you do <em/not/ change the value of the maintainer in the
<file>debian/control</file> file.  Your name from the NMU entry of the
<file>debian/changelog</file> file will be used for signing the changes
file.




    <chapt id="porting">Porting and Being Ported
      <p>
Debian supports an ever-increasing number of architectures.  Even if
you are not a porter, and you don't use any architecture but one, it
is part of your duty as a maintainer to be aware of issues of
portability.  Therefore, even if you are not a porter, you should read
most of this chapter.
      <p>
Porting is the act of building Debian packages for architectures which
is different from the original architecture of the package
maintainer's binary package.  It is a unique and essential activity.
In fact, porters do most of the actual compiling of Debian packages.
For instance, for one <em>i386</em> binary package, there has to be a
recompile for each architecture, which is around five more builds.


      <sect id="kind-to-porters">Being Kind to Porters
        <p>
Porters have a difficult and unique task, since they are required to
deal with a large volume of packages.  Ideally, every source package
should build right out of the box; unfortunately, this is often not
the case.  This section contains a checklist of ``gotchas'' often
committed by Debian maintainers -- common problems which often stymie
porters, and make their jobs unnecessarily more difficult.
        <p>
The first and most important watchword is to respond quickly to bug or
issues raised by porters.  Please treat porters with courtesy, as if
they were in fact co-maintainers of your package (which in a way, they
are).
        <p>
By far, most of the problems encountered by porters are caused by
<em>packaging bugs</em> in the source packages.  Here is a checklist
of things you should check or be aware of.

<enumlist>
            <item>
Don't set architecture to a value other than ``all'' or ``any'' unless
you really mean it.  In too many cases, maintainers don't follow the
instructions in the <url
id="http://www.debian.org/doc/packaging-manuals/packaging.html/"
name="Debian Packaging Manual">.  Setting your architecture to ``i386''
is usually incorrect.
            <item>
Make sure your source package is correct.  Do <tt>dpkg-source -x
<var>package</var>.dsc</tt> to make sure your source package unpacks
properly.  Then, in there, try building your package from scratch with
<tt>dpkg-buildpackage</tt>.
            <item>
Make sure you don't ship your binary package with the
<file>debian/files</file> or <file>debian/substvars</file> files.
They should be removed by the `clean' target of
<file>debian/rules</file>.
            <item>
Make sure you don't rely on locally installed or hacked configurations
or programs.  For instance, you should never be calling programs in
<file>/usr/local/bin</file> or the like.  Try not to rely on programs
be setup in a special way.  Try building your package on another
machine, even if it's the same architecture.
            <item>
Don't depend on the package your building already being installed (a
sub-case of the above issue).
            <item>
Don't rely on <prgn>egcc</prgn> being available; don't rely on
<prgn>gcc</prgn> being a certain version.
          </enumlist>


      <sect id="porter-guidelines">Guidelines for Porter Uploads
        <p>
If the package builds out of the box for the architecture to be ported
to, you are in luck and your job is easy.  This section applies to
that case; it describes how to build and upload your binary NMU so
that it is properly installed into the archive.  If you do have to
patch the package in order to get it to compile for the other
architecture, you are actually doing a source NMU, so consult <ref
id="nmu-guidelines"> instead.
        <p>
In a binary NMU, no real changes are being made to the source.  You do
not need to touch any of the files in the source package.  This
includes <file>debian/changelog</file>.
        <p>
The way to invoke <prgn/dpkg-buildpackage/ is as <tt>dpkg-buildpackage
-B -m<var/porter-email/</tt>.  Of course, set <var/porter-email/ to
your email address.  This will do a binary-only build of only the
architecture-dependant portions of the package, using the
`binary-arch' target in <file>debian/rules</file>.


        <sect1 id="source-nmu-when-porter">
          <heading>When to do a source NMU if you are a porter</heading>
          <p>
Porters doing a source NMU generally follow the guidelines found in
<ref id="nmu">, just like non-porters.  However, it is expected that
the wait cycle for a porter's source NMU is smaller than for a
non-porter, since porters have to cope with a large quantity of
packages.
          <p>
Again, the situation varies depending on the distribution they are
uploading to.  Crucial fixes (i.e., changes need to get a source
package to compile for a released-targeted architecture) can be
uploaded with <em/no/ waiting period for the `frozen' distribution.
          <p>
However, if you are a porter doing an NMU for `unstable', the above
guidelines for porting should be followed, with two variations.
Firstly, the acceptable waiting period -- the time between when the
bug is submitted to the BTS and when it is OK to do an NMU -- is seven
days for porters working on the unstable distribution.  This period
can be shortened if the problem is critical and imposes hardship on
the porting effort, at the discretion of the porter group.  (Remember,
none of this is Policy, just mutually agreed upon guidelines.)
          <p>
Secondly, porters doing source NMUs should make sure that the bug they
submit to the BTS should be of severity `important' or greater.  This
ensures that a single source package can be used to compile every
supported Debian architecture by release time.  It is very important
that we have one version of the binary and source package for all
architecture in order to comply with many licenses.
          <p>
Porters should try to avoid patches which simply kludge around bugs in
the current version of the compile environment, kernel, or libc.
Sometimes such kludges can't be helped.  If you have to kludge around
compilers bugs and the like, make sure you <tt>#ifdef</tt> your work
properly; also, document your kludge so that people know to remove it
once the external problems have been fixed.
          <p>
Porters may also have an unofficial location where they can put the
results of their work during the waiting period.  This helps others
running the port have the benefit of the porter's work, even during
the waiting period.  Of course, such locations have no official
blessing or status, so buyer, beware.


      <sect>Tools for Porters
        <p>
There are several tools available for the porting effort. This section
contains a brief introduction to these tools; see the package
documentation or references for full information.


        <sect1 id="quinn-diff">
          <heading><package>quinn-diff</package>
          <p>
<package/quinn-diff/ is used to locate the differences from one
architecture to another.  For instance, it could tell you which
packages need to be ported for architecture <var/Y/, based on
architecture <var/X/.


        <sect1 id="buildd">
          <heading><package>buildd</package>
          <p>
<package/buildd/ is not yet available!  However, it collects a number
of as yet unpackaged components which are currently in production
(such as <prgn/debbuild/ and <prgn/wanna-build/.
          <p>
The <package/buildd/ system is used as a distributed, client-server
build distribution system.  It is usually used in conjunction with
<em/auto-builders/, which are ``slave'' hosts which simply check out
and attempt to auto-build packages which need to be ported.  There is
also an email interface to the system, which allows porters to ``check
out'' a source package (usually one which cannot yet be autobuilt) and
work on it.
          <p>
We are very excited about this system, since it potentially has so
many uses.  Independent development groups can use the system for
different sub-flavors of Debian, which may or may not really be of
general interest (for instance, a flavor of Debian built with gcc
bounds checking).  It will also enable Debian to recompile entire
distributions quickly.


        <sect1 id="dpkg-cross">
          <heading><package>dpkg-cross</package>
          <p>
<package>dpkg-cross</package> is a tool for installing libraries and
headers for cross-compiling in a way similar to
<package>dpkg</package>. Furthermore, the functionality of
<prgn>dpkg-buildpackage</prgn> and <prgn>dpkg-shlibdeps</prgn> is
enhanced to support cross-compiling.




    <chapt id="archive-manip"><heading>Moving, Removing, Renaming,
      Adopting, and Orphaning Packages</heading>
      <p>
Some archive manipulation operation are not automated in the Debian
upload process.  These procedures should be manually followed by
maintainers.  This chapter gives guidelines in what to do in these
cases.

      <sect>Moving packages
        <p>
Sometimes a package will change either its section or its subsection.
For instance, a package from the `non-free' section might be GPL'd in
a later version; in this case you should consider moving it to `main'
or `contrib' (see the <url
id="http://www.debian.org/doc/debian-policy/" name="Debian Policy
Manual"> for guidelines).
        <p>
In this case, it is sufficient to edit the package control information
normally and re-upload the package (see the <url
id="http://www.debian.org/doc/packaging-manuals/packaging.html/"
name="Debian Packaging Manual"> for
details).  Carefully examine the installation log sent to you when the
package is installed into the archive.  If for some reason the old
location of the package remains, file a bug against
<tt/ftp.debian.org/ asking that the old location be removed.  Give
details on what you did, since it might be a <prgn/dinstall/ bug.


      <sect>Removing packages
        <p>
If for some reason you want to completely remove a package (say, if it
is an old compatibility library which is not longer required), you
need to file a bug against <tt/ftp.debian.org/ asking that the
package be removed.  Make sure you indicate which distribution the
package should be removed from.
        <p>
If in doubt concerning whether a package is disposable, email
<email/debian-devel@lists.debian.org/ asking for opinions.  Also of
interest is the <prgn/apt-cache/ program from the <package/apt/
package.  When invoked as <tt>apt-cache showpkg
/var/cache/apt/pkgcache.bin <var/package/</tt>, the program will show
details for <var/package/, including reverse depends.

        <sect1>Removing packages from <tt/Incoming/
          <p>
If you decide to remove a package from <tt/Incoming/, it is nice but
not required to send a notification of that to the appropriate
announce list (either <email/debian-changes@lists.debian.org/ or
<email/debian-devel-changes@lists.debian.org/).

      <sect>Replacing or renaming packages
        <p>
Sometimes you made a mistake naming the package and you need to rename
it.  In this case, you need to follow a two-step process.  First, set
your <file>debian/control</file> file to replace and conflict with the
obsolete name of the package (see the <url
id="http://www.debian.org/doc/packaging-manuals/packaging.html/"
name="Debian Packaging Manual"> for details).  Once you've uploaded
that package, and the package has moved into the archive, file a bug
against <tt/ftp.debian.org/ asking to remove the package with the
obsolete name.



      <sect id="orphaning">Orphaning a package
        <p>
If you can no longer maintain a package, then you should set the
package maintainer to <tt>Debian QA Group
&lt;debian-qa@lists.debian.org&gt;</tt> and email
<email/wnpp@debian.org/ indicating that the package is now orphaned.
If the package is especially crucial to Debian, you should instead
email <email/debian-devel@lists.debian.org/ asking for a new
maintainer.


      <sect id="adopting">Adopting a package
        <p>
Periodically, a listing of packages in need of new maintainers will be
sent to <email/debian-devel@lists.debian.org</email> list. This list
is also available at in the Work-Needing and Prospective Packages
document (WNPP), <url
id="ftp://ftp.debian.org/debian/doc/package-developer/prospective-packages.html">
and at <url id="http://www.debian.org/doc/prospective-packages.html">.
If you wish to take over maintenance of any of the packages listed in
the WNPP, or if you can no longer maintain a packages you have, or you
simply want to know if any one is working on a new package, send a
message to <email/wnpp@debian.org/.
        <p>
It is not OK to simply take over a package that you feel is neglected
-- that would be package hijacking.  You can, of course, contact the
current maintainer and ask them if you may take over the package.
However, without their assent, you may not take over the package.
Even if they ignore you, that is still not grounds to take over a
package.  If you really feel that a maintainer has gone AWOL (absent
without leave), post a query to
<email/debian-private@lists.debian.org/.
        <p>
If you take over an old package, you probably want to be listed as the
package's official maintainer in the bug system. This will happen
automatically once you upload a new version with an updated
<tt/Maintainer:/ field, although it can take a couple of weeks. If you
do not expect to upload a new version for a while, send an email to
<email/override-change@debian.org/ so that bug reports will go to you
right away.




    <chapt id="bug-handling">Handling Bugs

      <sect>Monitoring bugs
        <p>
If you want to be a good maintainer, you should periodically check the
<url id="http://www.debian.org/Bugs/" name="Debian bug tracking system
(BTS)"> for your packages.  The BTS contains all the open bugs against 
your packages.
        <p>
Maintainers interact with the BTS via email addresses at
<tt/bugs.debian.org/.  Documentation on available commands can be
found at <url id="http://www.debian.org/Bugs/">, or, if you have
installed the <package/debian-doc/ package, you can look at the local
files <file>/usr/doc/debian/bug-*</file>.
        <p>
Some find it useful to get periodic reports on open bugs.  You can add
a cron job such as the following if you want to get a weekly email
outlining all the open bugs against your packages:
<example>
# ask for weekly reports of bugs in my packages
0 17 * * fri   echo "index maint <var>maintainer-address</var>" | mail request@bugs.debian.org
</example>
Replace <var>maintainer-address</var> with you official Debian
maintainer address.

      <sect id="submit-bug">Submitting Bugs
        <p>
Often as a package maintainer, you find bugs in other packages or else
have bugs reported to your packages which need to be reassigned.  The
BTS <url id="http://www.debian.org/Bugs/server-control.html"
name="instructions"> can tell you how to do this.
        <p>
We encourage you to file bugs when there are problems.  Try to submit
the bug from a normal user account at which you are likely to receive
mail.  Do not submit bugs as root.
        <p>
Make sure the bug is not already filed against a package.  Try to do a
good job reporting a bug and redirecting it to the proper location.
For extra credit, you can go through other packages, merging bugs
which are reported more than once, or setting bug severities to
`fixed' when they have already been fixed.  Note that when you are
neither the bug submitter nor the package maintainer, you are should
not actually close the bug (unless you secure permission from the
maintainer).

      <sect>Responding to Bugs
        <p>
Make sure that any discussions you have about bugs are sent both to
the original submitter of the bug, and the bug itself (i.e.,
<email>123@bugs.debian.org</email>).
        <p>
You should <em>never</em> close bugs via the bug server `close'
command sent to <email>control@bugs.debian.org</email>.  If you do so,
the original submitter will not receive any feedback on why the bug
was closed.

      <sect>When bugs are closed by new uploads
        <p>
If you fix a bug in your packages, it is your responsibility as the
package maintainer to close the bug when it has been fixed.  However,
you should not close the bug until the package which fixes the bug has
been accepted into the Debian archive.  Therefore, once you get
notification that your updated package has been installed into the
archive, you can and should close the bug in the BTS.
        <p>
Again, see the BTS documentation for details on how to do this.
Often, it is sufficient to mail the <tt/.changes file to
<email/<var/XXX/-done@bugs.debian.org/, where <var/XXX/ is your bug
number.


      <sect id="lintian-reports">Lintian reports
        <p>
You should periodically get the new <package/lintian/ from `unstable' and
check over all your packages.  Alternatively you can check for your
maintainer email address at the <url
id="http://www.debian.org/lintian/" name="online lintian report">.
That report, which is updated automatically, contains <prgn/lintian/
reports against the latest version of the distribution (usually from
'unstable') using the latest <package/lintian/.


      <sect>Reporting lots of bugs at once
        <p>
Reporting a great number of bugs for the same problem on a great
number of different packages -- i.e., more than 10 -- is a deprecated
practice.  Take all possible steps to avoid submitting bulk bugs at
all.  For instance, if checking for the problem can be automated, add
a new check to <package/lintian/ so that an error or warning is
emitted.
        <p>
If you report more than 10 bugs on the same topic at once, it is
recommended that you send a message to
<email/debian-devel@lists.debian.org/ describing your intention before
submitting the report. This will allow other developers to verify that
the bug is a real problem. In addition, it will help prevent a
situation in which several maintainers start filing the same bug
report simultaneously.
        <p>
Note that when sending lots of bugs on the same subject, you should
send the bug report to <email/maintonly@bugs.debian.org/ so that the
bug report is not forwarded to the bug distribution mailing list.


    <chapt id="tools">Overview of Debian Maintainer Tools
      <p>
This section contains a rough overview of the tools available to
maintainers.  These tools are meant to help convenience developers and 
free their time for critical tasks.  
      <p>
Some people prefer to use high-level package maintenance tools and
some do not.  Debian is officially agnostic on this issue; any tool
which gets the job done is fine.  Therefore, this section is not meant
to stipulate to anyone which tools they should use or how they should
go about with their duties of maintainership.  Nor is it meant to
endorse any particular tool to the exclusion of a competing tool.
      <p>
Most of the descriptions of these packages come from the actual
package descriptions themselves.  Further information can be found in
the package documentation itself.


      <sect id="dpkg-dev">
        <heading><package/dpkg-dev/
        <p>
<package/dpkg-dev/ contains the tools (including
<prgn/dpkg-source/) required to unpack, build and upload Debian source
packages.  These utilities contain the fundamental, low-level
functionality required to create and manipulated packages; as such,
they are required for any Debian maintainer.


      <sect id="lintian">
        <heading><package/lintian/
        <p>
<package/Lintian/ dissects Debian packages and reports bugs and
policy violations. It contains automated checks for many aspects of
Debian policy as well as some checks for common errors.  The use of
<package/lintian/ has already been discussed in <ref
id="upload-checking"> and <ref id="lintian-reports">.


      <sect id="debhelper">
        <heading><package/debhelper/
        <p>
<package/debhelper/ is a collection of programs that can be used in
<file>debian/rules</file> to automate common tasks related to building
binary Debian packages. Programs are included to install various files
into your package, compress files, fix file permissions, integrate
your package with the Debian menu system.
        <p>
Unlike <package/debmake/, <package/debhelper/ is broken into
several small, granular commands which act in a consistent manner.  As
such, it allows a greater granularity of control than
<package/debmake/.


      <sect id="debmake">
        <heading><package/debmake/
        <p>
<package/debmake/, a pre-cursor to <package/debhelper/, is a
less granular <file>debian/rules</file> assistant. It includes two main
programs: <prgn>deb-make</prgn>, which can be used to help a
maintainer convert a regular (non-Debian) source archive into a Debian
source package; and <prgn>debstd</prgn>, which incorporates in one big
shot the same sort of automated functions that one finds in
<package/debhelper/.
        <p>
The consensus is that <package>debmake</package> is now deprecated in
favor of <package>debhelper</package>.  However, it's not a bug to use
<package>debmake</package>.


      <sect id="cvs-buildpackage">
        <heading><package/cvs-buildpackage/
        <p>
<package/cvs-buildpackage/ provides the capability to inject or
import Debian source packages into a CVS repository, build a Debian
package from the CVS repository, and helps in integrating upstream
changes into the repository.
        <p>
These utilities provide an infrastructure to facilitate the use of CVS
by Debian maintainers. This allows one to keep separate CVS branches
of a package for <em/stable/, <em/unstable/, and possibly
<em/experimental/ distributions, along with the other benefits of a
version control system.


      <sect id="dupload">
        <heading><package>dupload</package>
        <p>
<package/dupload/ is a package and a script to automagically upload
Debian packages to the Debian archive, to log the upload, and to send
mail about the upload of a package.  You can configure it for new
upload locations or methods.


      <sect id="fakeroot">
        <heading><package>fakeroot</package>
        <p>
<package>fakeroot</package> simulates root privileges.  This enables
you to build packages without being root (packages usually want to
install files with root ownership).  If you have
<package>fakeroot</package> installed, you can say, i.e.,
<tt>dpkg-buildpackage -rfakeroot</tt> as a user.


      <sect id="devscripts">
        <heading><package>devscripts</package>
        <p>
<package>devscripts</package> is a package containing a few wrappers
and tools which you may find helpful for maintaining your Debian
packages.  Example scripts include <prgn>debchange</prgn>, which will
manipulate your <file>debian/changelog</file> file from the
command-line, and <prgn>build</prgn>, which is a wrapper around
<prgn>dpkg-buildpackage</prgn>.


      <sect id="debget">
        <heading><package>debget</package>
        <p>
<package>debget</package> is a package containing a convenient script
which can be helpful in downloading files from the Debian archive.
You can use it to download source packages, for instance.


  </book>
</debiandoc>

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