On Wed, Sep 23, 2020 at 1:28 PM Michael Engel via cctech <
cctech at classiccmp.org> wrote:
On 9/23/20 8:54 PM, Grant Taylor via cctech wrote:
On 9/23/20 12:51 PM, Michael Engel via cctech
wrote:
Do you know if is there another OS which would
make it easier to
change crucial SCSI parameters in the driver (config) or maybe a
specialized tool that could help me to image the disk?
Try booting off of a Linux live CD / DVD and seeing if it will behave
any different
Not really, unfortunately. The error messages are a bit cryptic:
[ 1069.277571] (scsi8:A:0:0): Sending SDTR period 45, offset 0
[ 1069.278961] scsi 8:0:0:0: Attempting to queue a TARGET RESET message
[ 1069.278964] CDB: 0x12 0x0 0x0 0x0 0x24 0x0
[ 1069.278975] scsi 8:0:0:0: Command not found
[ 1069.278979] aic7xxx_dev_reset returns 0x2002
[ 1069.279286] (scsi8:A:0:0): Sending SDTR period 45, offset 0
[ 1069.280736] scsi8: Slave Alloc 1
[ 1069.543400] scsi target8:0:1: asynchronous
[ 1069.543416] scsi8: target 1 using asynchronous transfers
[ 1069.543420] scsi8: Selection Timeout on A:1. 0 SCBs aborted
It seems that the problem lies in the firmware of the ACB4000, which
doesn?t seem to support some standard commands, e.g. the INQUIRY
command. Most recent Linux SCSI drivers seem to use this command.
Earlier versions of SunOS and Solaris know how to deal with Adaptec SCSI
bridges properly; I've done so on SunOS 4.1.4, for example.
I'd still suggest using something like this:
to image the MFM disks themselves. A
friend of mine is in the middle of assembling a run of them...
- Josh