thanks to:
alan_at_nabeth.cxo.dec.com
wmills_at_WellsFargo.COM
John Speno
Dr. Tom Blinn
Lee, Hank
Michael Sternberg
Gavin Kreuiter
Andreas Bunten
John Francini
David G. Myers
Answers were
- check for bad CD or CD drive by trying another disk
- try mount -dr -t cdfs
- a pointer to a program that tries cdfs and ufs formats
- use df to see if something's already mounted there
- try mount -o ro -t ufs /dev/rz0c /mnt or
mount -o ro -t cdfs /dev/rz0c /mnt (because -ro fails)
- if it's Files-11 format, a VMS system is needed to mount it
if it's ISO-9660 use mount -t cdfs
- If the CD is in VMS's native ODS-2 format, you'll never get it to mount
on
Digital UNIX.
It seems this disk was a Files-11. Thanks to Dr. Blinn for his response to
this
as well as to my additional question:
"since we have two AlphaStation 500's - one runs Unix, the other VMS - it
seems the hardware is able to recognize either type of CD. Howcome it
won't
mount?":
Dr Blinn's reply (much truncated):
"the bootstrap on the disk knows how to read in what needs to get into
memory
to have a running operating system, although it might take several steps
to get there", and until you've got a running system you do not have
access
to the file systems on the disk. And the OpenVMS file system is not
understood by UNIX, or vice versa, although each of them is capable of
reading the ISO 9660 CDROM format.
^^^^^^^^^^^
original message:
Does anyone know how to do this? If I say
mount /dev/rz0c /cdrom
it tells me
/dev/rz0c on /usr/share/doclib/online: Read-only file system
which doesn't quite look like an error, yet nothing is mounted.
if I say
mount -r
i'm told No valid filesystem exists on this partition
and
mount -t cdfs
begets
cdfs_mount: Unsupported disk format
No valid filesystem exists on this partition
I thought I had seen this mount done once.
Received on Wed Mar 03 1999 - 21:49:25 NZDT