1 systemd System and Service Manager
4 http://0pointer.de/blog/projects/systemd.html
7 http://www.freedesktop.org/wiki/Software/systemd
10 git://anongit.freedesktop.org/systemd/systemd
11 ssh://git.freedesktop.org/git/systemd/systemd
14 http://cgit.freedesktop.org/systemd/systemd
17 http://lists.freedesktop.org/mailman/listinfo/systemd-devel
18 http://lists.freedesktop.org/mailman/listinfo/systemd-commits
21 #systemd on irc.freenode.org
24 https://bugs.freedesktop.org/enter_bug.cgi?product=systemd
32 LGPLv2.1+ for all code
33 - except sd-daemon.[ch] and sd-readahead.[ch] which are MIT
34 - except src/udev/ which is GPLv2.0+
37 Linux kernel >= 2.6.39
39 with cgroups (but it's OK to disable all controllers)
40 optional but strongly recommended: autofs4, ipv6
43 libblkid >= 2.20 (from util-linux) (optional)
44 libkmod >= 5 (optional)
45 PAM >= 1.1.2 (optional)
46 libcryptsetup (optional)
52 tcpwrappers (optional)
54 libqrencode (optional)
55 libmicrohttpd (optional)
57 make, gcc, and similar tools
59 During runtime you need the following additional dependencies:
61 util-linux >= v2.19 (requires fsck -l, agetty -s)
62 sulogin (from util-linux >= 2.22 or sysvinit-tools, optional but recommended)
66 For systmed-bootchart a kernel with procfs support and several
67 proc output options enabled is required:
73 When building from git you need the following additional dependencies:
86 When systemd-hostnamed is used it is strongly recommended to
87 install nss-myhostname to ensure that in a world of
88 dynamically changing hostnames the hostname stays resolvable
89 under all circumstances. In fact, systemd-hostnamed will warn
90 if nss-myhostname is not installed.
92 Note that D-Bus can link against libsystemd-login.so, which
93 results in a cyclic build dependency. To accommodate for this
94 please build D-Bus without systemd first, then build systemd,
95 then rebuild D-Bus with systemd support.
97 To build HTML documentation for python-systemd using sphinx,
98 please first install systemd (using 'make install'), and then
99 invoke sphinx-build with 'make sphinx-<target>', with <target>
100 being 'html' or 'latexpdf'. If using DESTDIR for installation,
101 pass the same DESTDIR to 'make sphinx-html' invocation.
104 Default udev rules use the following standard system group names,\
105 which need to be resolvable by getgrnam() at any time, even in the
106 very early boot stages, where no other databases and network is
108 tty, dialout, kmem, video, audio, lp, floppy, cdrom, tape, disk
110 During runtime the journal daemon requires the
111 "system-journal" system group to exist. New journal files will
112 be readable by this group (but not writable) which may be used
113 to grant specific users read access.
115 It is also recommended to grant read access to all journal
116 files to the system groups "wheel" and "adm" with a command
117 like the following in the post installation script of the
120 # setfacl -nm g:wheel:rx,d:g:wheel:rx,g:adm:rx,d:g:adm:rx /var/log/journal/
123 systemd will warn you during boot if /etc/mtab is not a
124 symlink to /proc/mounts. Please ensure that /etc/mtab is a
127 systemd will warn you during boot if /usr is on a different
128 file system than /. While in systemd itself very little will
129 break if /usr is on a separate partition many of its
130 dependencies very likely will break sooner or later in one
131 form or another. For example udev rules tend to refer to
132 binaries in /usr, binaries that link to libraries in /usr or
133 binaries that refer to data files in /usr. Since these
134 breakages are not always directly visible systemd will warn
135 about this, since this kind of file system setup is not really
136 supported anymore by the basic set of Linux OS components.
138 For more information on this issue consult
139 http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken
141 To run systemd under valgrind, compile with VALGRIND defined
142 (e.g. ./configure CPPFLAGS='... -DVALGRIND=1'). Otherwise,
143 false positives will be triggered by code which violates
144 some rules but is actually safe.