units: specify timeouts for more oneshot services Even trivial service occasionally get stuck, for example when there's a problem with the journal. There's nothing more annoying that looking at the cylon eye for a job with an infinite timeout. Use standard 90s for jobs that do some work, and 30s for those which should be almost instantenous.

readahead: wipe out readahead

Fix obsolete references to systemd-random-seed-load.service This service was merged with systemd-random-seed-save.service in c35b956d34bbb8bb208e49e45de2c103ca11911c.

units: rework systemd-random-seed-{load,save}.service to be a single service That way ordering it with MountsRequiredFor= works properly, as this no longer results in mount units start requests to be added to the shutdown transaction that conflict with stop requests for the same unit.