[Simh] RT-11 .DSK usage (was DECUS C)

Tim Shoppa shoppa at trailing-edge.com
Mon Aug 23 05:53:07 EDT 2010


shoppa at trailing-edge.com (Tim Shoppa) wrote:
> Examples below show mounting the DECUS 11-424 disk image 110424.dsk
> under the MSCP driver unit 1 (aka rq1 in SIMH).
> [...]
> sim> att rq1 110424.dsk

Oh, one thing that many here do not seem to have caught on to with
regards to MSCP disk usage. Although
SIMH RQ supports specifying the disk type (e.g. SET RQn RA90) only a
few poorly-designed, and not so often used, operating systems care
what the disk type is set to. All the reasonable OS's treat it as a big
bunch of blocks.

Tim.


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