Hint and kinks: Difference between revisions

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-==trouble 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

Latest revision as of 15:32, September 20, 2021