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Old 02-07-2013, 11:31 AM   #1
J.A.X
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umount reports device is busy


Hi all

I'm using Fedora 17, however I was unable to unmount a device.

PHP Code:
~ : umount /dev/hdc 
Reports the device is busy

so I try

PHP Code:
~ : umount -/dev/hdc 
And I get the same output.

How to make it unmount without questioning

Thanx in advane
 
Old 02-07-2013, 12:25 PM   #2
unSpawn
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You need to supply the partition number as in '/dev/hdc1' and check which mount point it uses (just run 'mount') then 'umount /whatever/mountpoint'.

Last edited by unSpawn; 02-07-2013 at 12:27 PM.
 
Old 02-07-2013, 02:17 PM   #3
ted_chou12
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IF YOU STILL get the same message when umounting hdc1 do:
Code:
#umount  -l  /dev/hdc1
l stands for LAZY.
Ted
 
Old 02-07-2013, 02:36 PM   #4
unSpawn
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...if you still get the "busy" message I'd use 'lsof +D/whatever/mountpoint' or '/sbin/fuser -v /whatever/mountpoint' instead to find out which process keeps files open on the file system.
 
Old 02-09-2013, 07:14 AM   #5
smbhandary
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And dont forget to get off the mount point you wish to umount.

enter cd at the command prompt and hit enter to land in your home directory.
 
Old 02-09-2013, 09:25 AM   #6
mreff555
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If your present working directory is within your mount point you are using that resource. try 'cd /', then unmount.


btw have noticed recently from typing errors that umount /dev/sdb is sometimes sufficient to remove /dev/sdb1.

In this case there is only one partition so I'm not sure if it's unmounting everything or just defaulting to the only option. I never noticed it til about a year ago. is this new?
 
Old 02-09-2013, 10:22 PM   #7
kingbeowulf
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I have noticed under KDE that if nepomuk, etc. service are running, or if KDE services are running under Xfce, for example, it can take 5-10 minutes before you can umount.
 
Old 02-11-2013, 08:52 AM   #8
mreff555
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ugh....

I really hate auto-mounting of ancillary drives. It's not a whole lot of work to do it yourself and it's so much nicer to have complete control over what is being used and what isn't.
 
  


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