Subject: Re: 1.3alpha MO-Drives
To: Jonathan Stone <jonathan@DSG.Stanford.EDU>
From: emanuel stiebler <emu@ecubics.com>
List: port-pmax
Date: 11/14/1997 10:06:02
----------
> From: Jonathan Stone <
> >THIS WORKS for the 230 MByte disks. I got many warnings and errors, but
i
> >could use it after sysinst
> >wrote a new filesystem on it. I "told" sysinst to make a configuration
like
> >partition a 0 bytes, partition b 0 bytes, partition c whole disk and
> >partition d whole disk. sysinst made a new filesystem on d.
> 
> Thanks for trying it out.  That it works even with warnings is good news.
> 
> 
> Did the warnings and errors come from sysinst or from the SCSI driver?
> I would not be surprised at some warnings from the SCSI subsystem; it
> really should use an MO-specific sense code.

as i remember, most of them are system, like "no disklabel ...."

> >i think it is because the cartriges are hardformatted to
2048bytes/sector.
> 
> Yes, that's a good guess. The pmax drivers just won't handle 2048
> bytes/sector properly. The kernel simply should not crash, even so,
> but I would not expect this to work.  (I'm afraid I cannot remember
> the name of the Japanese contributor passed away earlier this year,
> who did so much work to support this.  But that would probably have to
> wait till the pmax uses the MI scsi code.)
> 
> Could you please send a PR with as much information about the crash as
> possible?  (e.g., a log of any SCSI error messages from a serial
> console, if possible). I may look at avoiding the panic for the 1.3
> release, so that the kernel quietly refuses to mount disks that would
> cause problems.


 i try to test it on the weekend again

cheers,
emanuel