Public bug reported:
Right now, if you mount a loop device on Ubuntu Precise, gvfs-gdu-
volume-monitor grabs hold of the mount, preventing it from being
unmounted. I've attached a script (gvfs-test.sh) which reproduces the
problem reliably on Ubuntu Precise.
Ubuntu has a setting which should disable this automount behavior, but
it doesn't work: I tried setting System Settings -> Details ->
Removable Media -> Never prompt or start programs on media insertion,
but gvfs-gdu-volume-monitor still grabs hold of loop devices. This bug
is present in Ubuntu Precise but is not present in Ubuntu Lucid.
With the attached script (gvfs-test.sh), it fails with the following
message:
+ sudo bash -c 'mount /dev/loop0 /tmp/tmp.A8gsvsAc7T-gvfs-test && umount
/tmp/tmp.A8gsvsAc7T-gvfs-test'
umount: /tmp/tmp.A8gsvsAc7T-gvfs-test: device is busy.
(In some cases useful info about processes that use
the device is found by lsof(8) or fuser(1))
Killing gvfs-gdu-volume-monitor works around the problem. You can also
work around the bug by sleeping for a few seconds prior to unmounting
the loop device.
There are two related bugs here:
1) gvfs-gdu-volume-monitor should not be touching loop devices at all -- they
are not removable media so they should not be automounted.
2) It should be possible to disable the automount behavior of
gvfs-gdu-volume-monitor.
** Affects: gvfs (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1010141
Title:
gvfs-gdu-volume-monitor automounts loop devices, preventing them from
being unmounted
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