[systemd-devel] Antw: failing unmounts during reboot

[Reindl Harald]

Am 25.07.19 um 12:08 schrieb Ulrich Windl:
> Before systemd (almost) all processes were killed before unmounting

that's often a transfigured point of view

many issues where there also before systemd but never got noticed and
after change to systemd they got visible, just because a sysvinit don't
tell you about a problem because of missing error handling don't mean
there is none

the same with emergeny shell which covers nearly all cases where you
needed to start a livesystem before and now you have a working
environment where you can fix the root cause way quicker

"try to kill all processes using a filesystem before unmounting it"
isn't that easy when it comes to namespaces, "lsof" even don't tell you
the root cause preventing unmount but the ernel still refuses to do so