topic Re: Ejecting CD-ROM in Operating System - HP-UX

Ejecting CD-ROM

System Dude_1 — Wed, 24 Apr 2002 08:46:04 GMT

Could anyone send me a c script to eject cdrom from the drive

Re: Ejecting CD-ROM

John Carr_2 — Wed, 24 Apr 2002 08:51:43 GMT

Hi

unfortunatly unlike Solaris which has an eject command I have never seen this in hpux. I hope you get a program or command to do it .

cheers
John.

Re: Ejecting CD-ROM

S.K. Chan — Wed, 24 Apr 2002 08:53:40 GMT

You can, just have to umount it and press the button. There is a previuos thread that you can look at ..

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0xb59d0559ff7cd4118fef0090279cd0f9,00.html

Re: Ejecting CD-ROM

Kurt Beyers. — Wed, 24 Apr 2002 08:54:05 GMT

I don't think that an eject command exists on HP-UX as it does on Linux.

You can dismount the cdrom as follows. Find first the device file of the cdrom:
ioscan -funC disk

Then dismount it:
umount /dev/dsk/c3t2d0 (use your device file)

Make sure that no one is in the directory where the cdrom is mounted. You could kill those sessions with the command:

fuser -ku /dev/dsk/c3t2d0

You can combine these 2 commands easily in a shell script.

Kurt

Re: Ejecting CD-ROM

Justo Exposito — Wed, 24 Apr 2002 09:01:39 GMT

Hi,

Only a note:

Beware, if you mount a CD with the "mount" command use "umount" to unmount the CD, but if you mount the CD with the "pfs_mount" command unmount it with pfs_umount. If not you go into troubles with your CD.

I think that there is not an eject command in HP/UX too. You must push the button.

Regards,

Justo.

Re: Ejecting CD-ROM

Brian K. Arnholt — Wed, 24 Apr 2002 12:17:59 GMT

To add on to Justo's response, be very careful if you use the pfs_mount command to mount the CD-ROM, be sure to un-mount it with the corresponding "pfs_umount" command. If you inadvertently use "umount", things get ugly (I know from personal experience!). If this happens, you can attempt to kill the pfs daemons and try to eject the CD-ROM, but in some cases, a reboot is necessary to correct the problem (if at all possible, stay away from pfs_mount commands).

Following are steps to use if you do use the pfs_mount option:
1.Insert cdrom into drive

2.start processes Pfs:
#/usr/sbin/pfs_mountd &
#/usr/sbin/pfsd &
3.Note: verify > #ps -ef | grep pfs

4.find cdrom device name (ioscan -funC disk) [e.g. /dev/dsk/c1t2d0]
5.validate mount point to mount cdrom [e.g. /cdrom]

6.#pfs_mount /dev/dsk/c1t2d0 /cdrom

To umount do the following:
1.#pfs_umount /cdrom
2. manually eject cdrom from drive. (press eject button)
3.#kill processess [pfsd and pfs_mountd]

Brian

Re: Ejecting CD-ROM

David Burgess — Wed, 24 Apr 2002 12:29:01 GMT

What you need is an apprentice / trainee to push the button for you ;-)

Dave.

Re: Ejecting CD-ROM

Jeff Schussele — Wed, 24 Apr 2002 12:49:19 GMT

Maybe if we all requested, HP can add this request for an eject command to the list for future HP-UX version(s)!
Sure is handy in Solaris.
HP folks, are you listening?

Rgds,
Jeff

Re: Ejecting CD-ROM

Heiner E. Lennackers — Sat, 27 Apr 2002 11:14:16 GMT

Hi,

please take a look to thread

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0xb59d0559ff7cd4118fef0090279cd0f9,00.html

There has someone posted a c-source to eject a (scsi)cdrom. i haven't tested it, but maybe it helps.

Heiner
--
"If this makes any sense to you, you have a big problem."