Mounts are "unmounted".
Swaps are "deactivated", not "turned off" nor "disabled".
Loop and DM devices are "detached", not "deleted".
Especially the deleting sounded a bit scary.
In bugreports about hangs during the late shutdown we are often missing
important information - what were we trying to unmount/detach when it hung.
Instead of printing what we successfully unmounted, print what we are
going to unmount/detach. And add messages to mark the completion of
categories (mount/swap/loop/DM).
In the words of Homer: If you don't try, you can't fail.
This is a revert of 9279749b84.
It used to be necessary to consider the umounting failed to make sure /
and /usr were remounted read-only, but that is no longer necessary as
everything is now remounted read-only anyway.
Moreover, this avoids a warning at shutdown saying a filesystem was not
unmounted. As the umounting of / is never attempted there was no
corresponding warning message saying which fs that failed. This caused some
spurious bug-reports from concerned users.
Cc: Michael Biebl <biebl@debian.org>
Michal Schmidt