[Simh] SCSI-Interface for simh-vax?

Clem Cole clemc at ccc.com
Sat Sep 1 15:28:41 EDT 2018


below...

On Sat, Sep 1, 2018 at 2:39 PM Zane Healy <healyzh at avanthar.com> wrote:

> Create a virtual disk in SIMH the size of the CD-R blank.  Prep the disk,
> then burn it to CD-R.  This is how I created my bootable CD’s for RT-11 and
> RSX-11M+.  I’ve then used those CD’s to do installs on my PDP-11/73.  I
> wasn’t able to figure out how to make it work in RSTS/E.  I could create
> the CD-R, but not boot and install RSTS/E from it.


Just curious ... aren't there funnies because CD's are normally 1024 byte
blocks and disks are usually 512?    IIRC, there are places that store
numbers of blocks (not bytes), and you have to be careful.    I have
>>not<< played in any of that in years.

IIRC one of things  we might have done at DEC was mess with the block size
on a CD -- that's a Tim Litt type question.   Those bits are so long ago
depreciated/garbage collected in my acitve brain cells. ;-)
ᐧ
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