Unable to umount Cdrom drive.
ecrist at secure-computing.net
Wed Oct 13 11:33:18 PDT 2004
On Oct 13, 2004, at 1:29 PM, Matthew Seaman wrote:
> On Wed, Oct 13, 2004 at 11:22:12AM -0700, Laszlo Antal wrote:
>> When I mount the cdrom with #mount -t cd9660 /dev/acd0c /cdrom
> Verb. Sap. Make that:
> # mount -t cd9660 -o ro /dev/acd0c /cdrom
> For best results, set up all of the options etc. in /etc/fstab, and
> then just use:
> # mount /cdrom
>> everything works fine.I can get to my ports and everything
>> But when I want to swap cds and I type #umount /cdrom
>> I get this error message:: Unable to umount /cdrom, Device is busy.
>> If I do the umont from KDE I get the same error message.
>> What I'm doing wrong??
> You've either got a process with it's current working directory
> somewhere under /cdrom, or you've got a process with an open file
> descriptor (or a memory map) on one of the files on the CD.
> Try using:
> # fstat -f /cdrom
> to see if you can identify the culprits. Then either close them down,
> or CD to elsewhere in the filesystem if it's an interactive session.
> Once the CD Rom is idle, you should be able to dismount it easily.
To elaborate on what Matthew was saying, if you cd /cdrom once it's
mounted, and you try to unmount, you're going to get an error. I
always make certain to cd back home and the unmount the CD. You can't
unmount a device that you're currently 'on.'
Eric F Crist
Secure Computing Networks
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