Re: CD drives on vax

[David Brownlee <abs%netbsd.org@localhost>]

On 20 June 2012 21:33, Jochen Kunz <jkunz%unixag-kl.fh-kl.de@localhost> wrote:
> On Wed, 20 Jun 2012 14:45:35 +0100
> David Brownlee <abs%absd.org@localhost> wrote:
>
>> what do CD drives
>> show up as in practice? Both ra* and cd* ?
> It depends how the CD drive is connected. On VAXstations with SCSI, a
> SCSI conected CD drive shows up as cd(4) as usual. Most likely simh is
> emulating a QBus VAX. So drives are connected via a MSCP QBus adapter.
> These disks show up as ra(4). In this case the CD looks to the VAX like
> a read only hard disk. It even doesn't know that it is a CD drive. The
> same when you connect a CD drive via a MSCP emulation SCSI host adapter
> to a QBus VAX. MSCP mass storage, regardless of CD or hard disk, shows
> up as ra(4).

Excellent, just what I needed to know - thanks!

Ideally I'd like sysinst to be able to default to the "right" cd
device when possible, by detecting if a scsi cd* or MSCP ra* CD drive
is attached.

Will send a followup cc'e to tech-install on that...