On upgrades, only the %postun scriptlets of the old package version run. This means that any changes related to restarting daemons require two releases before they're actually used. %postun is used because it runs after the old package has been removed, which is important as it means any lingering dropins from the old package will have been removed as well. To allow deploying fixes in just a single release while still running after the old package has been removed, let's introduce %posttrans versions of these scriptlets as %posttrans of the new package runs on upgrade and install after the old package has been removed.
System and Service Manager
Details
Most documentation is available on systemd's web site.
Assorted, older, general information about systemd can be found in the systemd Wiki.
Information about build requirements is provided in the README file.
Consult our NEWS file for information about what's new in the most recent systemd versions.
Please see the Code Map for information about this repository's layout and content.
Please see the Hacking guide for information on how to hack on systemd and test your modifications.
Please see our Contribution Guidelines for more information about filing GitHub Issues and posting GitHub Pull Requests.
When preparing patches for systemd, please follow our Coding Style Guidelines.
If you are looking for support, please contact our mailing list, join our IRC channel #systemd on libera.chat or Matrix channel
Stable branches with backported patches are available in the stable repo.
We have a security bug bounty program sponsored by the Sovereign Tech Fund hosted on YesWeHack
