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umount: /mnt/XXXX: device is busy
May 12th, 2003 @ 11:34 am › karkoma
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Are your tired of those nasty messages telling you can’t umount /mnt/cdrom?

Well here goes a little trick…

lsof | grep /mnt/cdrom

This will output the process(es) that are using the device. Now stop or kill the process and you are done.

There are another approach to this question, but let’s see if you have ideas on this…

Categories: Tips and Tricks

arrow2 Responses

  1. Anonymous
    121 mos ago

    You also could try something like this…

    fuser -muv /mnt/cdrom

    which will list each account, PID, etc using the device mounted on /mnt/cdrom.

  2. Anonymous
    117 mos, 3 wks ago

    This will also do the trick:

    kill -9 `lsof -t /dev/cdrom`
    umount /dev/cdrom
    eject