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1 Porting systemd To New Distributions
2
3 HOWTO:
4 You need to make the follow changes to adapt systemd to your
5 distribution:
6
7 1) Find the right configure parameters for:
8
9 --with-rootprefix=
10 --with-sysvinit-path=
11 --with-sysvrcnd-path=
12 --with-rc-local-script-path-start=
13 --with-rc-local-script-path-stop=
14 --with-kbd-loadkeys=
15 --with-kbd-setfont=
16 --with-tty-gid=
17 --with-ntp-servers=
18 --with-support-url=
19
20 2) Try it out. Play around (as an ordinary user) with
21 '/usr/lib/systemd/systemd --test --system' for a test run
22 of systemd without booting. This will read the unit files and
23 print the initial transaction it would execute during boot-up.
24 This will also inform you about ordering loops and suchlike
25
26 NTP POOL:
27
28 By default, timesyncd uses the Google Public NTP servers
29 time[1-4].google.com. They serve time that uses a leap second
30 smear, and can be up to .5s off from servers that use stepped
31 leap seconds.
32
33 https://developers.google.com/time/smear
34
35 If you prefer to use leap second steps, please register your own
36 vendor pool at ntp.org and make it the built-in default by
37 passing --with-ntp-servers= to configure. Registering vendor
38 pools is free:
39
40 http://www.pool.ntp.org/en/vendors.html
41
42 PAM:
43 The default PAM config shipped by systemd is really bare bones.
44 It does not include many modules your distro might want to enable
45 to provide a more seamless experience. For example, limits set in
46 /etc/security/limits.conf will not be read unless you load pam_limits.
47 Make sure you add modules your distro expects from user services.
48
49 Pass --with-pamconfdir=no to ./configure to avoid installing this file
50 and instead install your own.
51
52 CONTRIBUTING UPSTREAM:
53
54 We generally do no longer accept distribution-specific
55 patches to systemd upstream. If you have to make changes to
56 systemd's source code to make it work on your distribution,
57 unless your code is generic enough to be generally useful, we
58 are unlikely to merge it. Please always consider adopting the
59 upstream defaults. If that is not possible, please maintain
60 the relevant patches downstream.
61
62 Thank you for understanding.