Thank you for all your responses.
Original question:
==============================================
We are a DS20E running 4.0F with 3gb ram and a 6+ gb swap.
When I issue the following mount command:
mount -t cdfs -r -o nodefperm,noversion,rrip /dev/rz24c /cdrom
I get the following error:
cdfs_mount: Unsupported disk format
/dev/rz24c on /cdrom: No valid filesystem exists on this partition
I'm able to issue:
mount -r /dev/rz24c /cdrom
Does anybody know why I'd be getting this error?
SUMMARY OF RESPONSES:
==============================================
My problem was that the installation guide from the vendor (Oracle)
specifically said to mount it with the command mount -t cdfs -r -o
nodeperm,noversion,rrip /device_name /mount_point. A simple mount -r
/device /mount_point works fine.
Unanimous consensus was that the cd is not in cdfs or rrip format though
there could be other reasons.
==
o Using a CDROM that doesn't have an ISO-9660 format
file system on it. The distribution CDROMs are
UFS format.
o The CD reader couldn't got I/O errors and couldn't
give the host the information it needed to verify
that it was the desired type file system.
o It is an ISO-9660 format, but doesn't have Rock Ridge
Extensions. I don't know that trying to use the option
on a disk without the feature will cause that error,
but there's a slim chance it works that way.
==
Because the CD is in UFS-format, not a rrip formatted CD
==
If ommitted -t, it defaults to UFS, so it is a UFS CD, not ISO9660.
==
CDs come in many formats. If it's a disc using regular UFS formatting then
the "-t cdfs" option is invalid. Things like Tru64 install CDs are an
example.
If you don't know beforehand it's a case of trial and error.
==
a CD-ROM can have multiple formats.
I think it is not in cdfs (used to exchange information among multiple OS )
format but in UFS(this is the default for mount )
==
Either you are not using the right /dev/rz device or you just need to do a
mount -r /dev/rz24c /cdrom and leave off the other stuff. Usually software
companies tell you to mount their software up like that on Tru-64 and I
have never been able to get it to work. a Mount -r always works for me.
But you might want to do a file /dev/rrz24c and make sure that the CDROM is
responding and not broken
========================
Thank you everybody!
Andy Cohen
Received on Mon Mar 27 2000 - 14:41:42 NZST