On Mon, 05 Apr 2010 19:55:00 -0700, jeremy jozwik wrote:
> On Mon, Apr 5, 2010 at 11:20 AM, Camaleón wrote:
>> - On standard hard drives this should not happen. Try to debug "umount
>> - v /mnt/device" using the console. Also, check "dmesg" for additional
>> information.
>
> $ umount -v /dev/sdb1
> could not umount /media/video - trying /dev/sdb1 instead umount:
> /dev/sdb1: not mounted
> umount: /media/video: must be superuser to umount could not umount
> /media/video - trying /dev/sdb1 instead umount: /dev/sdb1: not mounted
> umount: /media/video: must be superuser to umount
Were you running that command as "root" (or sudo) user?
> $ su
> Password:
>
> # umount -v /dev/sdb1
> /dev/sdb1 umounted
Uh? So it works fine for root user...
O.K., Let me check with my USB flash drive. After I plugg it:
***
s...@stt008:~$ mount | grep fat
/dev/sdc1 on /media/disk type vfat
(rw,nosuid,nodev,uhelper=hal,shortname=lower,uid=1000)
***
I try to umount it:
***
s...@stt008:~$ umount /media/disk
***
And now I verify it has been "really" umounted:
***
s...@stt008:~$ mount | grep fat
***
Seems to be working here for my plain user.
You can check 2 more things:
- Permissions of the mounted device ("mount" will tell)
- Does this happen whith any kind of media you connect in USB ports (USB
flash drives, media devices, etc...) or just happens with a concrete
device?
>> - "lsof" lists the opened files, you could also check that...
> im not using the drives through any applications other then terminal.
> and before unmounting i exit the directory or close the terminal window.
There can be operations left in background that may prevent umounting the
device... "lsof" will tell.
Greetings,
--
Camaleón
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