Copying simh images onto real disks

Tobias Russell toby at coreware.co.uk
Wed Feb 25 13:51:47 CST 2009


I've been trying to get BSD 2.11 running on my uPDP-11/73. Rather than
going the vtserver route, I thought I'd try to speed things along by
making a disk image under simh and then copying it onto a SCSI disk for
use on the PDP-11.

I successfully built a 300MB disk image under simh from the BSD 2.11
tape and then copied this onto the SCSI disk with:

dd if=bsd211.dsk of=/dev/sda

However, when I put the disk onto the -11 and try to boot DU0, it just
hangs.

Anyone know where I am going wrong?

Many thanks,
Toby


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