Hint and kinks: Difference between revisions
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==unmounting a USB disk== | ==unmounting a USB disk== | ||
Sometimes a user has cd'ed to a USB disk and then if someone else tries | Sometimes a user has cd'ed to a USB disk in some window (shell) | ||
to unmount the disk they will get this | and then if someone else tries | ||
to unmount the disk they will get a message like this: | |||
umount: /media/120514a: umount failed: Operation not permitted | |||
The solution is to find the offending process and kill it cold. | The solution is to find the offending process and kill it ''cold''. | ||
If the disk is labeled '120514a', then the steps are: | If the disk is labeled '120514a', then the steps are: | ||
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you might see something like this | you might see something like this | ||
bash 8367 dgs cwd DIR 8,49 20480 61341743 /media/120514a/user/cs | bash 8367 dgs cwd DIR 8,49 20480 61341743 /media/120514a/user/cs | ||
you can now kill this offending process as | you can now kill this offending process as | ||
Revision as of 17:14, January 23, 2013
unmounting a USB disk
Sometimes a user has cd'ed to a USB disk in some window (shell) and then if someone else tries to unmount the disk they will get a message like this:
umount: /media/120514a: umount failed: Operation not permitted
The solution is to find the offending process and kill it cold. If the disk is labeled '120514a', then the steps are:
lsof | grep 120514a
you might see something like this
bash 8367 dgs cwd DIR 8,49 20480 61341743 /media/120514a/user/cs
you can now kill this offending process as
kill -9 8367
and then you can do
umount /media/120514a