topic Re: Regarding cdrom mounting ... in Operating System - HP-UX

Regarding cdrom mounting ...

srinu_1 — Tue, 18 Jul 2006 02:25:34 GMT

Hi all,

I try to mount cdrom on my server.But it's simply hanging.I am not able to kill that process also.If I type
#mount /dev/dsk/cot0d0 /cdrom
It's simply hanging.
Please find the detais below...
I am not able to kill that process also.

root@dhruva# ps -ef |grep mount
root 1038 1 0 Mar 20 ? 67:59 /usr/lib/netsvc/fs/autofs/automountd
root 2433 1 0 Mar 20 ? 0:00 /usr/sbin/rpc.mountd
root 24812 24694 0 12:49:52 pts/4 0:00 grep mount
root 24369 1 0 12:24:52 ? 0:00 mount /dev/rdsk/c0t0d0 /cdrom
root 24431 24388 0 12:27:39 ? 0:00 mount /dev/dsk/c0t0d0 /cdrom
root 24590 24515 0 12:35:44 ? 0:00 mount /dev/dsk/c0t0d0 /cdrom
root@dhruva# kill -9 24590
root@dhruva# ps -ef |grep mount
root 1038 1 0 Mar 20 ? 67:59 /usr/lib/netsvc/fs/autofs/automountd
root 2433 1 0 Mar 20 ? 0:00 /usr/sbin/rpc.mountd
root 24369 1 0 12:24:52 ? 0:00 mount /dev/rdsk/c0t0d0 /cdrom
root 24431 24388 0 12:27:39 ? 0:00 mount /dev/dsk/c0t0d0 /cdrom
root 24590 24515 0 12:35:44 ? 0:00 mount /dev/dsk/c0t0d0 /cdrom
root 24814 24694 1 12:50:01 pts/4 0:00 grep mount
root@dhruva# kill -9 24369
root@dhruva# ps -ef |grep mount
root 1038 1 0 Mar 20 ? 67:59 /usr/lib/netsvc/fs/autofs/automountd
root 2433 1 0 Mar 20 ? 0:00 /usr/sbin/rpc.mountd
root 24816 24694 0 12:50:19 pts/4 0:00 grep mount
root 24369 1 0 12:24:52 ? 0:00 mount /dev/rdsk/c0t0d0 /cdrom
root 24431 24388 0 12:27:39 ? 0:00 mount /dev/dsk/c0t0d0 /cdrom
root 24590 24515 0 12:35:44 ? 0:00 mount /dev/dsk/c0t0d0 /cdrom
root@dhruva#

Please suggest me on this?.

Regards,
srinu.

Re: Regarding cdrom mounting ...

melvyn burnard — Tue, 18 Jul 2006 02:28:39 GMT

#mount /dev/dsk/cot0d0 /cdrom
is the above device a typo or did you reall try to mount cot0d0?
What OS version is this, and is this definitely the correct device file?

Re: Regarding cdrom mounting ...

srinu_1 — Tue, 18 Jul 2006 02:37:25 GMT

HI,
OS ver: B11.11i
I am trying to mount correct device.I found this device by using ioscan -funC disk command.

As a root user,I have perm. to kill all the process .But i am not able to kill this processes.

Re: Regarding cdrom mounting ...

melvyn burnard — Tue, 18 Jul 2006 02:45:47 GMT

well this thread is in the Linux forum, I will move it to the HP-UX forum.
If the mount is hanging, you cannot kill it because it is blocked on I/O, you would probably need to reboot the box.
It sounds like you may have a problem with the cd drive or media

Re: Regarding cdrom mounting ...

srinu_1 — Tue, 18 Jul 2006 02:56:36 GMT

Hi,
If I restart cdrom related services, will it works.
what are the services related to cdrom?.

Thanks
srinu

Re: Regarding cdrom mounting ...

srinu_1 — Tue, 18 Jul 2006 04:50:30 GMT

Hi ,

It's showing following processes.I am not able to kill this processes.Plz any suggestions from your side.

root@dhruva# ps -ef |grep mount
root 27116 1 0 14:38:22 ? 0:00 /usr/lib/netsvc/fs/autofs/automountd
root 25149 1 0 13:11:32 ? 0:00 mount /dev/dsk/c0t0d0 /cdrom
root 27108 1 0 14:37:48 ? 0:00 /usr/sbin/rpc.mountd
root 24369 1 0 12:24:52 ? 0:00 mount /dev/rdsk/c0t0d0 /cdrom
root 26909 24876 0 14:27:28 ? 0:00 mount /dev/rdsk/c0t0d0 /cdrom
root 27532 26990 0 14:55:25 ? 0:00 mount -F cdfs /dev/dsk/c0t0d0 /cdrom
root 24431 24388 0 12:27:39 ? 0:00 mount /dev/dsk/c0t0d0 /cdrom
root 28010 27976 1 15:15:50 pts/8 0:00 grep mount
root 24590 1 0 12:35:44 ? 0:00 mount /dev/dsk/c0t0d0 /cdrom
root@dhruva#

thanks
srinu.

Re: Regarding cdrom mounting ...

Atul Gautam — Wed, 19 Jul 2006 04:21:10 GMT

Srinu....

Kill all the processed identified with --
#fuser -c /mount_point

Confirm no other processes are in use in the file system with --
#lsof +D /mount_point

Issue,
#umount -f /mount_point
command to forcibly unmount the file system.

You can also try
#fuser -k /mount_point
to kill the process using the particular device.

ATUL

Re: Regarding cdrom mounting ...

Raj D. — Wed, 19 Jul 2006 04:31:59 GMT

Srinu,

Are you using correct device name:

" #mount /dev/dsk/cot0d0 /cdrom "

looks like typo problem with the device name , try with c0t0d0

cheers,
Raj.

Re: Regarding cdrom mounting ...

srinu_1 — Wed, 19 Jul 2006 04:32:57 GMT

Hi Atul,

This fuser command is also hanging.dmesg command showing "NFS server is not responding".

Thanks
srinu.

Re: Regarding cdrom mounting ...

melvyn burnard — Wed, 19 Jul 2006 04:43:29 GMT

I am afraid it looks like your only solution is to reboot the server

Re: Regarding cdrom mounting ...

Atul Gautam — Thu, 20 Jul 2006 02:58:20 GMT

Srinu....

Probably Burnard is write...
You may need to reboot the server as well and see as if it resolves the problem or not.

Also u have indicated that there is a problem from the NFS server side as well...

Atul

Re: Regarding cdrom mounting ...

Raj D. — Thu, 20 Jul 2006 03:36:38 GMT

Srinu ,

"NFS server is not responding".

You can check with nfs stop and nfs star script , but looks like a reboot can only solve this problem and you can mount the CDROM freshly.

Cheers,
Raj.