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:
85 When systemd-hostnamed is used it is strongly recommended to
86 install nss-myhostname to ensure that in a world of
87 dynamically changing hostnames the hostname stays resolvable
88 under all circumstances. In fact, systemd-hostnamed will warn
89 if nss-myhostname is not installed.
91 Note that D-Bus can link against libsystemd-login.so, which
92 results in a cyclic build dependency. To accommodate for this
93 please build D-Bus without systemd first, then build systemd,
94 then rebuild D-Bus with systemd support.
97 systemd will warn you during boot if /etc/mtab is not a
98 symlink to /proc/mounts. Please ensure that /etc/mtab is a
101 systemd will warn you during boot if /usr is on a different
102 file system than /. While in systemd itself very little will
103 break if /usr is on a separate partition many of its
104 dependencies very likely will break sooner or later in one
105 form or another. For example udev rules tend to refer to
106 binaries in /usr, binaries that link to libraries in /usr or
107 binaries that refer to data files in /usr. Since these
108 breakages are not always directly visible systemd will warn
109 about this, since this kind of file system setup is not really
110 supported anymore by the basic set of Linux OS components.
112 For more information on this issue consult
113 http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken
115 To run systemd under valgrind, compile with VALGRIND defined
116 (e.g. ./configure CPPFLAGS='... -DVALGRIND=1'). Otherwise,
117 false positives will be triggered by code which violates
118 some rules but is actually safe.
120 ENGINEERING AND CONSULTING SERVICES:
121 ProFUSION <http://profusion.mobi> offers professional
122 engineering and consulting services for systemd for embedded
123 and other use. Please contact Gustavo Barbieri
124 <barbieri@profusion.mobi> for more information.
126 Disclaimer: This notice is not a recommendation or official
127 endorsement. However, ProFUSION's upstream work has been very
128 beneficial for the systemd project.