topic Re: Problem mounting my cdrom in Operating System - HP-UX

Problem mounting my cdrom

KURT HARLESS — Thu, 11 Jan 2001 21:48:08 GMT

Greetings,

Trying to mount my cdrom on a K-580, running 11.0.

Issue a "mount /cdrom" and receive the following message;
/dev/dsk/c4t2d0: Device busy

No users are attached to the drive.
How can I tell what's going on?

Additional information;

I have no entry in my mnttab file for the cdrom

I have an entry in my fstab file for the cdrom;
/dev/dsk/c4t2d0 /cdrom cdfs ro,suid 0 0

I tried to issue the following command as well;
mount -F cdfs /dev/dsk/c4t2d0 /cdrom
/dev/dsk/c4t2d0: Device busy

Any ideas?

Thanks

Kurt

Re: Problem mounting my cdrom

Patrick Wallek — Thu, 11 Jan 2001 22:03:13 GMT

This may be a silly question, but have you tried doing a umount /cdrom to try and unmount and then try remounting the CD?

Re: Problem mounting my cdrom

KURT HARLESS — Thu, 11 Jan 2001 22:47:34 GMT

of course... Receive the following message;
# umount /cdrom
umount: cannot find /cdrom in /etc/mnttab
cannot unmount /cdrom

Re: Problem mounting my cdrom

Ajitkumar Rane — Fri, 12 Jan 2001 00:19:23 GMT

Try fuser -ku /cdrom. This should kill any proccess attached to it.But first does /cdrom show up in bdf? If yes whats the content. If some application CD is mounted using the pfs command then you need to use pfs_umount.

Hope this helps

Good luck.

Re: Problem mounting my cdrom

James A. Donovan — Fri, 12 Jan 2001 01:41:54 GMT

I've had similar problems in the past. Try this:

mkdir /xcdrom
mount /dev/dsk/c4t2d0 /xcdrom

If this succeeds, then

umount /xcdrom
rm /cdrom ---don't ask me why, it just worked.
mkdir /cdrom
mount /dev/dsk/c4t2d0 /cdrom

Re: Problem mounting my cdrom

Dan Hetzel — Fri, 12 Jan 2001 07:02:32 GMT

Hi Kurt,

Do you have pfsd and pfs_mountd running?
If this is the case, it could prevent from mounting a cdrom and report a "device busy" ?

Best regards,

Dan

Re: Problem mounting my cdrom

KURT HARLESS — Fri, 12 Jan 2001 15:36:40 GMT

Replies:

Rane: Results for fuser -u /cdrom
# fuser -u /cdrom
/cdrom:

#
So I take that as no active connections to this resource.

Donovan:
# mkdir /xcdrom
# mount /dev/dsk/c4t2d0 /xcdrom
/dev/dsk/c4t2d0: Device busy
Still busy...

Hetzel:
# ps -ef | grep pfs
root 2026 14853 1 08:24:05 pts/t2 0:00 grep pfs

No indication of any pfs*

Still puzzled....
Should I have an entry in my mnttab for my cdrom? If so, Anyone know what it should look like?

About ready to boot the box this weekend if all else fails...

Thanks for the continued support.

Kurt

Re: Problem mounting my cdrom

KURT HARLESS — Fri, 12 Jan 2001 18:43:11 GMT

OK I AM AN IDIOT!

Apparently, I need to have a CD in the drive before I mount it! Duuuuuu

Thanks all