This makes tmpfiles, sysusers, and udevd invoked in the following order:
1. systemd-tmpfiles-setup-dev-early.service
Create device nodes gracefully, that is, create device nodes anyway
by ignoring unknown users and groups.
2. systemd-sysusers.service
Create users and groups, to make later invocations of tmpfiles and
udevd can resolve necessary users and groups.
3. systemd-tmpfiles-setup-dev.service
Adjust owners of previously created device nodes.
4. systemd-udevd.service
Process all devices. Especially to make block devices active and can
be mountable.
5. systemd-tmpfiles-setup.service
Setup basic filesystem.
Follow-up for b42482af90.
Fixes#28653.
Replaces #28681 and #28732.
This reverts commits 112a41b6ec,
3178698bb5, and
b768379e8b.
The commit 112a41b6ec introduces #28765,
as systemd-tmpfiles-setup.service has ordering after local-fs.target,
but usually the target requires block devices processed by udevd.
Hence, the service can only start after the block devices timed out.
Fixes#28765.
Yu Watanabe