-systemd System and Session Manager
+systemd System and Service Manager
DETAILS:
http://0pointer.de/blog/projects/systemd.html
http://www.freedesktop.org/wiki/Software/systemd
GIT:
- git://anongit.freedesktop.org/systemd
- ssh://git.freedesktop.org/git/systemd
+ git://anongit.freedesktop.org/systemd/systemd
+ ssh://git.freedesktop.org/git/systemd/systemd
GITWEB:
- http://cgit.freedesktop.org/systemd/
+ http://cgit.freedesktop.org/systemd/systemd
MAILING LIST:
http://lists.freedesktop.org/mailman/listinfo/systemd-devel
https://bugs.freedesktop.org/enter_bug.cgi?product=systemd
AUTHOR:
- Lennart Poettering with major support from Kay Sievers
+ Lennart Poettering
+ Kay Sievers
+ ...and many others
+
+LICENSE:
+ LGPLv2.1+ for all code
+ - except sd-daemon.[ch] and sd-readahead.[ch] which are MIT
+ - except src/shared/MurmurHash3.c which is Public Domain
+ - except src/journal/lookup3.c which is Public Domain
+ - except src/udev/* which is (currently still) GPLv2, GPLv2+
REQUIREMENTS:
- Linux kernel >= 2.6.30 (with devtmpfs, cgroups; optional but strongly recommended: autofs4, ipv6)
- libudev >= 163
+ Linux kernel >= 3.0
+ CONFIG_DEVTMPFS
+ CONFIG_CGROUPS (it's OK to disable all controllers)
+ CONFIG_INOTIFY_USER
+ CONFIG_SIGNALFD
+ CONFIG_TIMERFD
+ CONFIG_EPOLL
+ CONFIG_NET
+ CONFIG_SYSFS
+
+ Linux kernel >= 3.8 for Smack support
+
+ Udev will fail to work with the legacy layout:
+ CONFIG_SYSFS_DEPRECATED=n
+
+ Legacy hotplug slows down the system and confuses udev:
+ CONFIG_UEVENT_HELPER_PATH=""
+
+ Userspace firmware loading is deprecated, will go away, and
+ sometimes causes problems:
+ CONFIG_FW_LOADER_USER_HELPER=n
+
+ Some udev rules and virtualization detection relies on it:
+ CONFIG_DMIID
+
+ Mount and bind mount handling might require it:
+ CONFIG_FHANDLE
+
+ Optional but strongly recommended:
+ CONFIG_IPV6
+ CONFIG_AUTOFS4_FS
+ CONFIG_TMPFS_POSIX_ACL
+ CONFIG_TMPFS_XATTR
+ CONFIG_SECCOMP
+
+ For systemd-bootchart a kernel with procfs support and several
+ proc output options enabled is required:
+ CONFIG_PROC_FS
+ CONFIG_SCHEDSTATS
+ CONFIG_SCHED_DEBUG
+
+ For UEFI systems:
+ CONFIG_EFI_VARS
+ CONFIG_EFI_PARTITION
+
+ Note that kernel auditing is broken when used with systemd's
+ container code. When using systemd in conjunction with
+ containers please make sure to either turn off auditing at
+ runtime using the kernel command line option "audit=0", or
+ turn it off at kernel compile time using:
+ CONFIG_AUDIT=n
+
dbus >= 1.4.0
libcap
- gtk+ >= 2.20 (optional)
+ libblkid >= 2.20 (from util-linux) (optional)
+ libkmod >= 14 (optional)
PAM >= 1.1.2 (optional)
libcryptsetup (optional)
libaudit (optional)
+ libacl (optional)
+ libattr (optional)
libselinux (optional)
+ liblzma (optional)
tcpwrappers (optional)
- libnotify (optional)
+ libgcrypt (optional)
+ libqrencode (optional)
+ libmicrohttpd (optional)
+ libpython (optional)
+ make, gcc, and similar tools
- When you build from git you need the following additional dependencies:
+ During runtime you need the following additional dependencies:
+
+ util-linux >= v2.19 (requires fsck -l, agetty -s)
+ sulogin (from util-linux >= 2.22 or sysvinit-tools, optional but recommended)
+ dracut (optional)
+ PolicyKit (optional)
+
+ When building from git you need the following additional dependencies:
- vala >= 0.10
docbook-xsl
xsltproc
automake
autoconf
libtool
- make, gcc, and similar tools
+ intltool
+ gperf
+ gtkdocize (optional)
+ python (optional)
+ sphinx (optional)
+ python-lxml (entirely optional)
- During runtime you need the following dependencies:
+ When systemd-hostnamed is used it is strongly recommended to
+ install nss-myhostname to ensure that in a world of
+ dynamically changing hostnames the hostname stays resolvable
+ under all circumstances. In fact, systemd-hostnamed will warn
+ if nss-myhostname is not installed.
- util-linux > v2.18 (requires fsck -l, agetty -s)
- sulogin (from sysvinit-tools, optional but recommended)
- plymouth (optional)
- dracut (optional)
+ Note that D-Bus can link against libsystemd-login.so, which
+ results in a cyclic build dependency. To accommodate for this
+ please build D-Bus without systemd first, then build systemd,
+ then rebuild D-Bus with systemd support.
+
+ To build HTML documentation for python-systemd using sphinx,
+ please first install systemd (using 'make install'), and then
+ invoke sphinx-build with 'make sphinx-<target>', with <target>
+ being 'html' or 'latexpdf'. If using DESTDIR for installation,
+ pass the same DESTDIR to 'make sphinx-html' invocation.
+
+USERS AND GROUPS:
+ Default udev rules use the following standard system group
+ names, which need to be resolvable by getgrnam() at any time,
+ even in the very early boot stages, where no other databases
+ and network are available:
+
+ tty, dialout, kmem, video, audio, lp, floppy, cdrom, tape, disk
+
+ During runtime the journal daemon requires the
+ "systemd-journal" system group to exist. New journal files will
+ be readable by this group (but not writable) which may be used
+ to grant specific users read access.
+
+ It is also recommended to grant read access to all journal
+ files to the system groups "wheel" and "adm" with a command
+ like the following in the post installation script of the
+ package:
+
+ # setfacl -nm g:wheel:rx,d:g:wheel:rx,g:adm:rx,d:g:adm:rx /var/log/journal/
+
+ The journal gateway daemon requires the
+ "systemd-journal-gateway" system user and group to
+ exist. During execution this network facing service will drop
+ privileges and assume this uid/gid for security reasons.
WARNINGS:
systemd will warn you during boot if /etc/mtab is not a
systemd will warn you during boot if /usr is on a different
file system than /. While in systemd itself very little will
- break if /usr is on a seperate partition many of its
+ break if /usr is on a separate partition many of its
dependencies very likely will break sooner or later in one
form or another. For example udev rules tend to refer to
binaries in /usr, binaries that link to libraries in /usr or
breakages are not always directly visible systemd will warn
about this, since this kind of file system setup is not really
supported anymore by the basic set of Linux OS components.
+
+ For more information on this issue consult
+ http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken
+
+ To run systemd under valgrind, compile with VALGRIND defined
+ (e.g. ./configure CPPFLAGS='... -DVALGRIND=1'). Otherwise,
+ false positives will be triggered by code which violates
+ some rules but is actually safe.
~ianmdlvl / elogind.git / blobdiff