DISTRO_PORTING

   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         0) Make your distribution recognized via the autoconf checks
   8         in configure.ac. Grep for the word "fedora" (case
   9         insensitively) and you should be able to find the places where
  10         you need to add/change things.
  11
  12         1) Patch src/shared/hostname-setup.c so that systemd knows
  13         where to read your host name from. You might also want to
  14         update status_welcome() in util.c.
  15
  16         2) Check the unit files in units/ if they match your
  17         distribution. Most likely you will have to make additions to
  18         units/*.m4 and create a copy of units/fedora/ with changes for
  19         your distribution.
  20
  21         3) Adjust Makefile.am to register the unit files you added in
  22         step 2. Also you might need to update the m4 invocation in
  23         Makefile.am. Grep for the word "fedora" (case insensitively)
  24         and you should be able to find the places where you need to
  25         add/change things.
  26
  27         4) Try it out. Play around with 'systemd --test --system' for
  28         a test run of systemd without booting. This will read the unit
  29         files and print the initial transaction it would execute
  30         during boot-up. This will also inform you about ordering loops
  31         and suchlike.
  32
  33 CONTRIBUTING UPSTREAM:
  34         We are interested in merging your changes upstream, if they
  35         are for a big, and well-known distribution. Unfortunately we
  36         don't have the time and resources to maintain
  37         distribution-specific patches for all distributions on the
  38         planet, hence please do not send us patches that add systemd
  39         support for non-mainstream or niche distributions.
  40
  41         Thank you for understanding.
  42
  43 BE CONSIDERATE:
  44         We'd like to keep differences between the distributions
  45         minimal. This both simplifies our maintenance work, as well
  46         as it helps administrators to move from one distribution to
  47         another.
  48
  49         Hence we'd like to ask you to keep your changes minimal, and
  50         not rename any units without a very good reason (if you need a
  51         particular name for compatibility reasons, consider using
  52         alias names via symlinks). Before you make changes that change
  53         semantics from upstream, please talk to us!
  54
  55         In SysV almost every distribution uses a different
  56         nomenclature and different locations for the boot-up
  57         scripts. We'd like to avoid chaos like that with systemd right
  58         from the beginning. So please, be considerate!