http://www.freedesktop.org/wiki/Software/systemd
GIT:
- git://anongit.freedesktop.org/systemd/systemd
- ssh://git.freedesktop.org/git/systemd/systemd
+ git@github.com:systemd/systemd.git
+ https://github.com/systemd/systemd.git
GITWEB:
- http://cgit.freedesktop.org/systemd/systemd
+ https://github.com/systemd/systemd
MAILING LIST:
http://lists.freedesktop.org/mailman/listinfo/systemd-devel
#systemd on irc.freenode.org
BUG REPORTS:
- https://bugs.freedesktop.org/enter_bug.cgi?product=systemd
+ https://github.com/systemd/systemd/issues
AUTHOR:
Lennart Poettering
LICENSE:
LGPLv2.1+ for all code
- - except src/shared/MurmurHash2.c which is Public Domain
- - except src/shared/siphash24.c which is CC0 Public Domain
+ - except src/basic/MurmurHash2.c which is Public Domain
+ - except src/basic/siphash24.c which is CC0 Public Domain
- except src/journal/lookup3.c which is Public Domain
- except src/udev/* which is (currently still) GPLv2, GPLv2+
REQUIREMENTS:
- Linux kernel >= 3.7
- Linux kernel >= 3.8 for Smack support
+ Linux kernel >= 3.11
+ Linux kernel >= 4.2 for unified cgroup hierarchy support
Kernel Config Options:
CONFIG_DEVTMPFS
create additional symlinks in /dev/disk/ and /dev/tape:
CONFIG_BLK_DEV_BSG
- Required for PrivateNetwork in service units:
+ Required for PrivateNetwork and PrivateDevices in service units:
CONFIG_NET_NS
+ CONFIG_DEVPTS_MULTIPLE_INSTANCES
+ Note that systemd-localed.service and other systemd units use
+ PrivateNetwork and PrivateDevices so this is effectively required.
Optional but strongly recommended:
CONFIG_IPV6
CONFIG_AUTOFS4_FS
- CONFIG_TMPFS_POSIX_ACL
CONFIG_TMPFS_XATTR
+ CONFIG_{TMPFS,EXT4,XFS,BTRFS_FS,...}_POSIX_ACL
CONFIG_SECCOMP
+ CONFIG_CHECKPOINT_RESTORE (for the kcmp() syscall)
- Required for CPUShares in resource control unit settings
+ Required for CPUShares= in resource control unit settings
CONFIG_CGROUP_SCHED
CONFIG_FAIR_GROUP_SCHED
- Required for CPUQuota in resource control unit settings
+ Required for CPUQuota= in resource control unit settings
CONFIG_CFS_BANDWIDTH
For systemd-bootchart, several proc debug interfaces are required:
CONFIG_EFIVAR_FS
CONFIG_EFI_PARTITION
+ We recommend to turn off Real-Time group scheduling in the
+ kernel when using systemd. RT group scheduling effectively
+ makes RT scheduling unavailable for most userspace, since it
+ requires explicit assignment of RT budgets to each unit whose
+ processes making use of RT. As there's no sensible way to
+ assign these budgets automatically this cannot really be
+ fixed, and it's best to disable group scheduling hence.
+ CONFIG_RT_GROUP_SCHED=n
+
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
with audit being enabled. This works correctly only on kernels
3.14 and newer though. TL;DR: turn audit off, still.
- glibc >= 2.14
+ glibc >= 2.16
libcap
libmount >= 2.20 (from util-linux)
libseccomp >= 1.0.0 (optional)
libmicrohttpd (optional)
libpython (optional)
libidn (optional)
- gobject-introspection > 1.40.0 (optional)
elfutils >= 158 (optional)
make, gcc, and similar tools
During runtime, you need the following additional
dependencies:
- util-linux >= v2.25 required
+ util-linux >= v2.26 required
dbus >= 1.4.0 (strictly speaking optional, but recommended)
dracut (optional)
PolicyKit (optional)
- When building from git, you need the following additional
- dependencies:
+ When building from git, the following tools are needed:
+ pkg-config
docbook-xsl
xsltproc
automake
libtool
intltool
gperf
- gtkdocize (optional)
python (optional)
python-lxml (optional, but required to build the indices)
sphinx (optional)
+ The build system is initialized with ./autogen.sh. A tar ball
+ can be created with:
+ git archive --format=tar --prefix=systemd-222/ v222 | xz > systemd-222.tar.xz
+
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
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/
+ to grant specific users read access. In addition, system
+ groups "wheel" and "adm" will be given read-only access to
+ journal files using systemd-tmpfiles.service.
The journal gateway daemon requires the
"systemd-journal-gateway" system user and group to
hosts: files mymachines resolve myhostname
+SYSV INIT.D SCRIPTS:
+ When calling "systemctl enable/disable/is-enabled" on a unit which is a
+ SysV init.d script, it calls /usr/lib/systemd/systemd-sysv-install;
+ this needs to translate the action into the distribution specific
+ mechanism such as chkconfig or update-rc.d. Packagers need to provide
+ this script if you need this functionality (you don't if you disabled
+ SysV init support).
+
+ Please see src/systemctl/systemd-sysv-install.SKELETON for how this
+ needs to look like, and provide an implementation at the marked places.
+
WARNINGS:
systemd will warn you during boot if /etc/mtab is not a
symlink to /proc/mounts. Please ensure that /etc/mtab is a
supported anymore by the basic set of Linux OS components.
systemd requires that the /run mount point exists. systemd also
- requires that /var/run is a a symlink to /run.
+ requires that /var/run is a symlink to /run.
For more information on this issue consult
http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken
false positives will be triggered by code which violates
some rules but is actually safe.
-ENGINEERING AND CONSULTING SERVICES:
- ENDOCODE <https://endocode.com/> offers professional
- engineering and consulting services for systemd. Please
- contact Chris Kühl <chris@endocode.com> for more information.
+ Currently, systemd-timesyncd defaults to use the Google NTP
+ servers if not specified otherwise at configure time. You
+ really should not ship an OS or device with this default
+ setting. See DISTRO_PORTING for details.
~ianmdlvl / elogind.git / blobdiff