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)
45 PAM >= 1.1.2 (optional)
46 libcryptsetup (optional)
52 tcpwrappers (optional)
54 libqrencode (optional)
55 libmicrohttpd (optional)
57 When you build from git you need the following additional dependencies:
68 make, gcc, and similar tools
70 During runtime you need the following dependencies:
72 util-linux > v2.18 (requires fsck -l, agetty -s)
73 sulogin (from sysvinit-tools, optional but recommended)
76 When systemd-hostnamed is used it is strongly recommended to
77 install nss-myhostname to ensure that in a world of
78 dynamically changing hostnames the hostname stays resolveable
79 under all circumstances. In fact, systemd-hostnamed will warn
80 if nss-myhostname is not installed. Packagers are encouraged to
81 add a dependency on nss-myhostname to the package that
82 includes systemd-hostnamed.
84 Note that D-Bus can link against libsystemd-login.so, which
85 results in a cyclic build dependency. To accommodate for this
86 please build D-Bus without systemd first, then build systemd,
87 then rebuild D-Bus with systemd support.
90 systemd will warn you during boot if /etc/mtab is not a
91 symlink to /proc/mounts. Please ensure that /etc/mtab is a
94 systemd will warn you during boot if /usr is on a different
95 file system than /. While in systemd itself very little will
96 break if /usr is on a separate partition many of its
97 dependencies very likely will break sooner or later in one
98 form or another. For example udev rules tend to refer to
99 binaries in /usr, binaries that link to libraries in /usr or
100 binaries that refer to data files in /usr. Since these
101 breakages are not always directly visible systemd will warn
102 about this, since this kind of file system setup is not really
103 supported anymore by the basic set of Linux OS components.
105 For more information on this issue consult
106 http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken
108 To run systemd under valgrind, compile with VALGRIND defined
109 (e.g. ./configure CPPFLAGS='... -DVALGRIND=1'). Otherwise,
110 false positives will be triggered by code which violates
111 some rules but is actually safe.
113 ENGINEERING AND CONSULTING SERVICES:
114 ProFUSION <http://profusion.mobi> offers professional
115 engineering and consulting services for systemd for embedded
116 and other use. Please contact Gustavo Barbieri
117 <barbieri@profusion.mobi> for more information.
119 Disclaimer: This notice is not a recommendation or official
120 endorsement. However, ProFUSION's upstream work has been very
121 beneficial for the systemd project.