I usually get a failure with a message about "unknown phase" or something
like that.  I then (using csh) type !! to repeat the previous command and
it works.  I'm chalking it up to the ancient 1X cdrom drive I'm using in my
486DX4 box running NetBSD-1.4.1

By the way, is the CD in the drive when you issue the command?

At 12:53 PM 6/21/00 CDT, Petra Hofmann wrote:
>#mount /cdrom    unknown special file or file system.
>
>I have tried:
>
>mount -t cd9660 -o ro /dev/cd0a /cdrom  :Operation not supported by device
>
>dmseg | more : cd0 at atapibus() drive 1: <CRD-8240B>, 1997/11/05, 1.15
type 5
>cdrom removable
>               cd0: 32-bits data port
>               cd0: drive supports PIO mode 4, DMA mode 2
>
>How do I correct the problem?
> FWIW eject /dev/cd0a works.
>
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