Disabling SCSI parity checking to dump disk on ACB4000 MFM-SCSI adapter?

dave.g4ugm at gmail.com dave.g4ugm at gmail.com
Fri Sep 25 03:49:16 CDT 2020


Gentles,
As its really an MFM Disk why not read it with an MFM adaptor? Something like:-

https://www.pdp8.net/mfm/mfm.shtml

which will read and image MFM disks and replace them. Expensive perhaps, but perhaps some one can lend you one to get an image...
... or if the SCSI <=> MFM adaptor supports two disks the use a DREM

https://www.drem.info/tech-info

and perhaps DD to copy the data..... 

Dave 
G4UGM

> -----Original Message-----
> From: cctalk <cctalk-bounces at classiccmp.org> On Behalf Of Grant Taylor via
> cctalk
> Sent: 25 September 2020 04:11
> To: cctech at classiccmp.org
> Subject: Re: Disabling SCSI parity checking to dump disk on ACB4000 MFM-
> SCSI adapter?
> 
> On 9/24/20 12:15 PM, Jules Richardson via cctech wrote:
> > the Linux kernel at least has depended on it for a very long time
> 
> Do you have any idea how far back one might need to go to get a kernel that
> didn't depend on SCSI Inquiry?
> 
> I wonder if a retro computer with a really old kernel and a SCSI card that it
> supported might be a viable option.
> 
> 
> 
> --
> Grant. . . .
> unix || die



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