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65 lines
2.6 KiB
Plaintext
65 lines
2.6 KiB
Plaintext
Porting systemd To New Distributions
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HOWTO:
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You need to make the follow changes to adapt systemd to your
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distribution:
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1) Find the right configure parameters for:
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--with-rootprefix=
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--with-sysvinit-path=
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--with-sysvrcnd-path=
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--with-rc-local-script-path-start=
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--with-rc-local-script-path-stop=
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--with-kbd-loadkeys=
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--with-kbd-setfont=
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--with-tty-gid=
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--with-ntp-servers=
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--with-support-url=
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2) Try it out. Play around (as an ordinary user) with
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'/usr/lib/systemd/systemd --test --system' for a test run
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of systemd without booting. This will read the unit files and
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print the initial transaction it would execute during boot-up.
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This will also inform you about ordering loops and suchlike
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NTP POOL:
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By default, timesyncd uses the Google NTP servers
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time[1-4].google.com. They serve time that is not standards
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compliant, and can be up to .5s off. Google does not
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officially support these servers for the broader
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audience. Distributions and vendors really should not ship
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OSes or devices with these NTP servers configured. Instead,
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please register your own vendor pool at ntp.org and make it
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the built-in default by passing --with-ntp-servers= to
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configure. Registering vendor pools is free:
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http://www.pool.ntp.org/en/vendors.html
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Again, if you ship your software or device with the default
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NTP servers, then you will get served wrong time, and will
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rely on services that might not be supported for long.
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PAM:
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The default PAM config shipped by systemd is really bare bones.
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It does not include many modules your distro might want to enable
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to provide a more seamless experience. For example, limits set in
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/etc/security/limits.conf will not be read unless you load pam_limits.
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Make sure you add modules your distro expects from user services.
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Pass --with-pamconfdir=no to ./configure to avoid installing this file
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and instead install your own.
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CONTRIBUTING UPSTREAM:
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We generally do no longer accept distribution-specific
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patches to systemd upstream. If you have to make changes to
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systemd's source code to make it work on your distribution,
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unless your code is generic enough to be generally useful, we
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are unlikely to merge it. Please always consider adopting the
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upstream defaults. If that is not possible, please maintain
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the relevant patches downstream.
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Thank you for understanding.
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