Unmounting the CD Rom

[Simon R Wootton]

I have a HP9000 N class system running HPUX 11.00. Currently, the system thinks the disk is mounted, however, the tray opens and we can swap the disk but obviously unable to re-mount it. I thought there was a way to force an unmounting (umount -F ..??) but apparently not - all suggestions welcome. There are no users using the CD.

[Hai Nguyen_1]

Can you run

fuser -cu

to see if any process is occupying it?

Or look into /etc/mnttab to see if there is an entry for the CDROM in there. If found, delete the line, save the file and you should be all set.

Hai

[pap]

Hi,
If the system thinks that the CDROM device is mounted, then edit the file /etc/mnttab and delete the file system entry for CDROM device.

Once this is done, then try to mount the CD again.

This should work.

-pap

[John Strang]

Hi Simon,

Does the "mount" command show the CD as being mounted?

If so, what happens when you try to umount it?

Check file /etc/fstab to ensure the CD is not specified as being mounted by default - also check /etc/mnttab which shows which filesystems are currently mounted.

HTH,

John

[sudhir_3]

Hi
check the mount point by
fuser command
fuser -u mount point
if it shows process running with this mount point than use
fuser -uk mount point. probably mount point will be released and you will be able to mount another cd

sudhir

[Tom Geudens]

Hi,
How exactly was the CD originally mounted ? If it was a pfs_mount instead of an ordinary mount ... I'm afraid you'll need a reboot to solve the problem.

Regards,
Tom

[SS_6]

Try power cycle CDROM only.

[Mateja Bezjak]

Hi,

I had a similar problem once. I solved it by rebooting the system.

Regards,
Mateja

[Simon R Wootton]

Thanks to all who responded, the only solution in the end was a reboot.