The recent systemd upstream introduced a slightly modified version
string which included information about a git commit, which however
broke the version check in dracut. Unfortunately, the (( )) bash syntax
went along with it in certain cases and introduced a pretty nasty issue,
when the systemd would boot up but with slightly changed environment.
To prevent this from happening in the future, let's at least check if
the version parsed from the `systemd --version` output is a comparable
number.
With hostonly enabled, only modules that are currently
loaded are included in the initrd. Modules which are
explicitly listed in modules-load.d do not need to
be filtered that way. Fix for boo#962224.
systemd sets /proc/sys/kernel/core_pattern to use systemd-coredump.
However, systemd-coredump is missing from initrd, making dumping
the core in initrd impossible by default.
Reference: bsc#1054809
Both 'utmp' and 'root' groups are mentioned in tmpfiles.d/systemd.conf
and as such should be included.
It's probably better to have something equiv to inst_rule_group_owner()
for udev rules which parses out users and groups and adds them to the
passwd/group db respectively.
Could also rely on sysusers but as the initramfs is static in this
sense, it's more efficient to pre-define the users IMO.
If journald.conf already contains Storage=persistent, journald will
write to /var/log/journal/, which ends up at /run/initramfs/log/journal/
after switching root. We want to make sure early boot logs are written
to /run/log/journal/ so they can be flushed to /var/log/journal/ after
switching root.
Basic systemd functionality is in 00systemd now.
Switching root and the initrd.target is in 00systemd-initrd.
Dracut additions to the systemd initrd are in 98dracut-systemd.
Ondrej Dubaj