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Groups > comp.os.linux.hardware > #505
| From | Haines Brown <haines@HistoricalMaterialism.info> |
|---|---|
| Newsgroups | comp.os.linux.hardware |
| Subject | Umount not being done |
| Date | 2011-07-21 08:52 -0400 |
| Message-ID | <87sjpzzth6.fsf@engels.HistoricalMaterialism.info> (permalink) |
I'm running Debian Squeeze and have encountered a problem in that a
mount point is busy and can't be unmounted. When a USB external
drive (mount point is /media/mirror) is udev is forced
to create a new device file. I can umount these, but
$ mount
...
/dev/sdb1 on /media/mirror type ext3 (rw)
fusectl on /sys/fs/fuse/connections type fusectl (rw)
/dev/sdc1 on /media/mirror type ext3 (rw)
/dev/sdd1 on /media/mirror type ext3 (rw)
Subsequent mountings can be unmounted, but sdd1 is hung:
# umount -fv /dev/sdb1
umount: cannot umount /dev/sdb1 -- /dev/sdd1 is mounted over it on the
same point.
# umount -fv /dev/sdc1
umount: cannot umount /dev/sdc1 -- /dev/sdd1 is mounted over it on the
same point.
# umount -fv /dev/sdd1
umount2: Device or resource busy
umount: /media/mirror: device is busy.
(In some cases useful info about processes that use
the device is found by lsof(8) or fuser(1))
umount2: Device or resource busy
There were bug reports for mountusb, but in those cases, /proc/mount
showed the mount point not mounted, but in my case they are mounted:
$ cat /proc/mounts | grep mirror
/dev/sdb1 /media/mirror ext3 ro,relatime,errors=continue,data=ordered 0 0
/dev/sdc1 /media/mirror ext3 rw,relatime,errors=continue,data=ordered 0 0
/dev/sdd1 /media/mirror ext3 rw,relatime,errors=continue,data=ordered 0 0
Haines Brown
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Umount not being done Haines Brown <haines@HistoricalMaterialism.info> - 2011-07-21 08:52 -0400
Re: Umount not being done Richard Kettlewell <rjk@greenend.org.uk> - 2011-07-21 14:48 +0100
Re: Umount not being done Haines Brown <haines@HistoricalMaterialism.info> - 2011-07-22 08:39 -0400
Re: Umount not being done Bill Marcum <bill@lat.localnet> - 2011-07-22 14:11 -0400
Re: Umount not being done Haines Brown <haines@HistoricalMaterialism.info> - 2011-07-23 04:01 -0400
Re: Umount not being done notbob <notbob@notbob.invalid> - 2011-07-21 13:55 +0000
Re: Umount not being done J G Miller <miller@yoyo.ORG> - 2011-07-21 15:15 +0000
Re: Umount not being done ebenZEROONE@verizon.net (Hactar) - 2011-07-21 14:47 -0400
Re: Umount not being done Richard Kettlewell <rjk@greenend.org.uk> - 2011-07-22 15:12 +0100
Re: Umount not being done Haines Brown <haines@HistoricalMaterialism.info> - 2011-07-22 08:56 -0400
Re: Umount not being done J G Miller <miller@yoyo.ORG> - 2011-07-22 13:18 +0000
Re: Umount not being done Richard Kettlewell <rjk@greenend.org.uk> - 2011-07-22 14:42 +0100
Re: Umount not being done ebenZEROONE@verizon.net (Hactar) - 2011-07-22 11:30 -0400
Re: Umount not being done "Trevor Hemsley" <Trevor.Hemsley@mytrousers.ntlworld.com> - 2011-07-22 17:45 -0500
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