topic Re: Mount CD -R in Operating System - HP-UX

Mount CD -R

Brian butler — Sun, 31 Mar 2002 04:15:27 GMT

HP UX 11.11, i am unable to mount a cd that i created every time i try and mount it the system locks up and, the network connection drops, the machine has no problem mounting regular cd's, it is so bad that i have to just power off the machine, i have never had any problems like this before,Oh yeah by the way this is my personal machine nothing that important... i have tryed the following and the box has locked up everytime

# mount -F cdfs /dev/dsk/c1t2d0 /SD_CDROM

# mount -F cdfs -r -o cdcase /dev/dsk/c1t2d0 /SD_CDROM
although i can read the file system, and it returns this
# fstyp /dev/dsk/c1t2d0
cdfs

oh yeah cant forget this one

# pfs_mount /dev/dsk/c1t2d0 /SD_CDROM
pfs_mount: giving up on /SD_CDROM

Well i am going to try to find another CDR and give it another try.

if anyone has any good ideas im all ears

Re: Mount CD -R

John Carr_2 — Sun, 31 Mar 2002 09:25:16 GMT

Hi

try this

mount -r -o cdcase /dev/dsk/c1t2d0 /SD_CDROM

John.

Re: Mount CD -R

Muhammad Al-Huwaidi — Sun, 31 Mar 2002 11:23:14 GMT

Make sure that is umount first.

Re: Mount CD -R

Brian butler — Sun, 31 Mar 2002 12:44:32 GMT

Nope the machine locked up again, and i could not kill the process, had to reboot it by pressing the button not exactly my favorate thing to do.
BB

Re: Mount CD -R

John Carr_2 — Sun, 31 Mar 2002 16:33:06 GMT

Hi Brian

are you able to take the Cd put it into another server or PC and be able to read it ?

have you tried reading another CD in the problematic server ?

what is the server/workstation model ?

cheers
John.

Re: Mount CD -R

Paula J Frazer-Campbell — Sun, 31 Mar 2002 16:47:37 GMT

Brian

Try a mount with a HP core or apps CD.

Paula

Re: Mount CD -R

Brian butler — Sun, 31 Mar 2002 17:19:22 GMT

I dont have any problems mounting any other cd's at all, and i can read this cd just fine in my Windows machine, its a brand new cd, reading core os cd's or patch cd is not a problem..the type of machine that i have is a visulize B132L +
Thanks Everyone
BB

Re: Mount CD -R

Paula J Frazer-Campbell — Sun, 31 Mar 2002 17:29:53 GMT

Brian

Looks like a duff CD, can your write another one and try that.

Paula

Re: Mount CD -R

U.SivaKumar_2 — Mon, 01 Apr 2002 02:12:31 GMT

hi,
please try this :

mount -F cdfs -o ro /dev/dsk/...... /cdrom

regards,
U.SivaKumar

Re: Mount CD -R

John Carr_2 — Mon, 01 Apr 2002 08:45:39 GMT

Hi Brian

it appears at the moment there is an incompatability between the CD created on windows and the B132L+. We know both CD drives work and can read other CD's. Can you look at the s/w you use to write the CD with and check to see if it will allow different write formats.

what cd writer do you have and what s/w are you using.

cheers
John.

Re: Mount CD -R

eran maor — Mon, 01 Apr 2002 10:27:05 GMT

Hi Brain

i saw that all ready you got the answer about doing the mount -o cdcase .

i will try to create a new moint point to see if the problem is with the mount point so :

mkdir /test
mount -o cdcase /dev/dsk/c1t2d0 /test

and see if you have a problem .

again if it will not work try to check the device file of the device with diskinfo on the raw device .

Re: Mount CD -R

Bill Hassell — Mon, 01 Apr 2002 15:03:01 GMT

You mentioned CD-R. Is this CD truly a CD recordable, or worse yet, a CD-RW? CD-R media, especially the really blue color is not backward compatible to old CRROM drives. The color of the laser in these early drives (and the error correction code) is not really compatible with new technology like CD-R. And CD-RW is even worse as far as backward compatibility.

So I would start with a relatively new external CDROM drive and see if the problem goes away. The fact that manufactured CDs like HP-UX read OK would seem to confirm the problem.