Differntiate between ISO9660 and UFS CDROMs

[k_75]

Hi,

How can I differentiate between ISO 9660 and UFS CD-ROM?
I need to mount CD on TRU64 server but there seems to be differing command syntaxes for either case.

Can anyone provide command and way to distinguish between the two formats?

Regards,
kell

[Vladimir Fabecic]

UFS CD-ROM:
# mount -r /dev/disk/cdrom0c /mnt
ISO9660 CD-ROM:
# mount -r -t cdfs -o noversion /dev/disk/cdrom0c /mnt

[Steven Schweda]

The easiest way is probably to try to mount
it one way, and if that fails, then try to
mount it the other way.

Otherwise, you could probably read the first
block (or few), and try to analyze the data.
I haven't looked closely, but there's
probably some distinctive charateristic which
is reliable (and fairly easy to spot).

[Stiwi Wondrusch]

From the mount man page:
If you do not specify options for file name formats on the command line, the mount command automatically tests for the presence of formats and mounts it by default

I mount everything like this:
mount /dev/disk/cdrom0c /mnt

Let Tru64 (5.1b) do the work for you.

rgds Stiwi

[k_75]

Thanks for the help folks!
I can mount the CD now. But I will still like to find out any generic way to ascertain format of CDROM.