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Commit | Line | Data |
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d657c51f | 1 | systemd System and Service Manager |
31cee6f6 LP |
2 | |
3 | DETAILS: | |
4 | http://0pointer.de/blog/projects/systemd.html | |
5 | ||
6 | WEB SITE: | |
7 | http://www.freedesktop.org/wiki/Software/systemd | |
8 | ||
9 | GIT: | |
9fa2f410 KS |
10 | git://anongit.freedesktop.org/systemd/systemd |
11 | ssh://git.freedesktop.org/git/systemd/systemd | |
31cee6f6 LP |
12 | |
13 | GITWEB: | |
9fa2f410 | 14 | http://cgit.freedesktop.org/systemd/systemd |
31cee6f6 LP |
15 | |
16 | MAILING LIST: | |
17 | http://lists.freedesktop.org/mailman/listinfo/systemd-devel | |
18 | http://lists.freedesktop.org/mailman/listinfo/systemd-commits | |
19 | ||
20 | IRC: | |
21 | #systemd on irc.freenode.org | |
22 | ||
23 | BUG REPORTS: | |
24 | https://bugs.freedesktop.org/enter_bug.cgi?product=systemd | |
25 | ||
26 | AUTHOR: | |
5430f7f2 LP |
27 | Lennart Poettering |
28 | Kay Sievers | |
29 | ...and many others | |
31cee6f6 | 30 | |
673eab9b | 31 | LICENSE: |
5430f7f2 LP |
32 | LGPLv2.1+ for all code |
33 | - except sd-daemon.[ch] and sd-readahead.[ch] which are MIT | |
7c09aafd | 34 | - except src/udev/ which is GPLv2.0+ |
673eab9b | 35 | |
31cee6f6 | 36 | REQUIREMENTS: |
b7f44df5 LP |
37 | Linux kernel >= 2.6.39 |
38 | with devtmpfs | |
39 | with cgroups (but it's OK to disable all controllers) | |
40 | optional but strongly recommended: autofs4, ipv6 | |
c1c8ca81 | 41 | dbus >= 1.4.0 |
3ede835a | 42 | libcap |
e3043162 TG |
43 | libblkid >= 2.20 (from util-linux) (optional) |
44 | libkmod >= 5 (optional) | |
3ede835a LP |
45 | PAM >= 1.1.2 (optional) |
46 | libcryptsetup (optional) | |
47 | libaudit (optional) | |
19d5d4cb | 48 | libacl (optional) |
fb0951b0 | 49 | libattr (optional) |
3ede835a | 50 | libselinux (optional) |
19d5d4cb | 51 | liblzma (optional) |
3ede835a | 52 | tcpwrappers (optional) |
7b17a7d7 LP |
53 | libgcrypt (optional) |
54 | libqrencode (optional) | |
55 | libmicrohttpd (optional) | |
2cc86f09 ZJS |
56 | libpython (optional) |
57 | make, gcc, and similar tools | |
58 | ||
59 | During runtime you need the following additional dependencies: | |
60 | ||
c3d2d86d TG |
61 | util-linux >= v2.19 (requires fsck -l, agetty -s) |
62 | sulogin (from util-linux >= 2.22 or sysvinit-tools, optional but recommended) | |
2cc86f09 | 63 | dracut (optional) |
46ba8aae | 64 | PolicyKit (optional) |
3ede835a | 65 | |
f1c24fea ZJS |
66 | For systmed-bootchart a kernel with procfs support and several |
67 | proc output options enabled is required: | |
68 | ||
69 | CONFIG_PROC_FS | |
70 | CONFIG_SCHEDSTATS | |
71 | CONFIG_SCHED_DEBUG | |
72 | ||
2cc86f09 | 73 | When building from git you need the following additional dependencies: |
3ede835a | 74 | |
3ede835a LP |
75 | docbook-xsl |
76 | xsltproc | |
77 | automake | |
78 | autoconf | |
79 | libtool | |
19d5d4cb | 80 | intltool |
b62cfcea | 81 | gperf |
19d5d4cb ZJS |
82 | gtkdocize (optional) |
83 | python (optional) | |
9015fa64 | 84 | sphinx (optional) |
21bc923a | 85 | |
fff2e5b5 LP |
86 | When systemd-hostnamed is used it is strongly recommended to |
87 | install nss-myhostname to ensure that in a world of | |
edca2e23 | 88 | dynamically changing hostnames the hostname stays resolvable |
fff2e5b5 | 89 | under all circumstances. In fact, systemd-hostnamed will warn |
bf9e477c | 90 | if nss-myhostname is not installed. |
fff2e5b5 | 91 | |
6705c2df | 92 | Note that D-Bus can link against libsystemd-login.so, which |
49f43d5f | 93 | results in a cyclic build dependency. To accommodate for this |
6705c2df LP |
94 | please build D-Bus without systemd first, then build systemd, |
95 | then rebuild D-Bus with systemd support. | |
96 | ||
9015fa64 ZJS |
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. | |
102 | ||
a24c64f0 | 103 | USERS AND GROUPS: |
37495eed LP |
104 | Default udev rules use the following standard system group |
105 | names, which need to be resolvable by getgrnam() at any time, | |
106 | even in the very early boot stages, where no other databases | |
107 | and network are available: | |
108 | ||
109 | tty, dialout, kmem, video, audio, lp, floppy, cdrom, tape, disk | |
37c0e8f3 | 110 | |
a24c64f0 LP |
111 | During runtime the journal daemon requires the |
112 | "system-journal" system group to exist. New journal files will | |
113 | be readable by this group (but not writable) which may be used | |
114 | to grant specific users read access. | |
115 | ||
116 | It is also recommended to grant read access to all journal | |
117 | files to the system groups "wheel" and "adm" with a command | |
118 | like the following in the post installation script of the | |
119 | package: | |
120 | ||
121 | # setfacl -nm g:wheel:rx,d:g:wheel:rx,g:adm:rx,d:g:adm:rx /var/log/journal/ | |
122 | ||
37495eed LP |
123 | The journal gateway daemon requires the |
124 | "system-journal-gateway" system user and group to | |
125 | exist. During execution this network facing service will drop | |
126 | privileges and assume this uid/gid for security reasons. | |
127 | ||
21bc923a LP |
128 | WARNINGS: |
129 | systemd will warn you during boot if /etc/mtab is not a | |
130 | symlink to /proc/mounts. Please ensure that /etc/mtab is a | |
131 | proper symlink. | |
132 | ||
133 | systemd will warn you during boot if /usr is on a different | |
134 | file system than /. While in systemd itself very little will | |
ed1c99fc | 135 | break if /usr is on a separate partition many of its |
21bc923a LP |
136 | dependencies very likely will break sooner or later in one |
137 | form or another. For example udev rules tend to refer to | |
138 | binaries in /usr, binaries that link to libraries in /usr or | |
139 | binaries that refer to data files in /usr. Since these | |
140 | breakages are not always directly visible systemd will warn | |
141 | about this, since this kind of file system setup is not really | |
142 | supported anymore by the basic set of Linux OS components. | |
fc7a744c | 143 | |
aa167132 LP |
144 | For more information on this issue consult |
145 | http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken | |
146 | ||
1b4bb4fd ZJS |
147 | To run systemd under valgrind, compile with VALGRIND defined |
148 | (e.g. ./configure CPPFLAGS='... -DVALGRIND=1'). Otherwise, | |
149 | false positives will be triggered by code which violates | |
150 | some rules but is actually safe. |