On Jun 19, 2009, at 3:38 PM, SPC wrote:
Mmm... Interesting technique. Some special parm to use
DD to write the
diverse OS's ? And with SIMH ?
I was thinking in RSTS, for example.
RSTS was the first OS I did it with. No special parameters are
necessary on either end. The format simh uses for disk emulation is
just a raw expanse of bytes, no weird stuff anywhere. That makes
things very easy. Just use the correct disk type in simh to make the
image file the right size. Use "rauser" and set the size explicitly
if you're using an MSCP disk that's not a "standard" DEC size like an
RD54 or whatever, like for your ESDI controller.
I made a bootable XXDP RL02 pack using this trick just recently.
I transferred it to my 11/83 running 2.11BSD using FTP, cabled up an
RL02 drive, put in a pack, did the dd, shut down, then I could boot
that RL02 pack.
-Dave
--
Dave McGuire
Port Charlotte, FL