Steve Fisher wrote:
> (tried mounting /dev/scd0 by hand as well and was told that it
> is not a valid block device) but doing ls -l shows brw-rw----
> 1 root cdrom  11,     0 Mar 14  2002 /dev/scd0   - telling me
> that this _is_ a block device...though why it is not valid,
> I have no idea.

I don't know how much more info I can add other than this:

When the first IDE CDRW device is mentioned in an 'hdx=ide-scsi'
kernel command line, its "SCSI generic" interface (used by
cdrecord and some cd rippers) will be at /dev/sg0, with a (raw?)
counterpart at /dev/sr0, while it should be generally available
and mountable from /dev/scd0. (My fstab, e.g., mounts /dev/scd0
to /cdrom.)

The sr0 and scd0 nodes seem to work equally well as devices in
a mount command, given a valid and recognized filesystem.

The only time I get a "xxx is not a valid block device" on
a removable device I know full well is there, is when there's no
media in it.  (Mount /dev/fd0 w/o floppy gives this error.) With
a cdrw drive, this can also mean it's merely an unreadable
filesystem, in which case I'd suggest trying it on a separate PC
whose CD drive you _know_ works.

Hope this helps,
Tim

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