On 7/27/20 8:14 PM, Clem Cole wrote:

on v7: dd if=/dev/rrkN of=ucbtar bs=1 <-- this should pull the binary with the padded last block in

Your instructions held up until I tried to read from the rk device - here's my attach:

in simh:
set rk0 rk05
att rk0 ucbtar

then in v7 the rk's aren't in /dev, so:

looked in c.c, rk is major dev 0, and rrk is dev 9, so...
/etc/mknod /dev/rk0 b 0 0
/etc/mknod /dev/rrk0 c 9 0
chmod 640 /dev/*rk*

and
dd if=/dev/rrk0 of=ucbtar bs=1
cannot open: /dev/rrk0

Look reasonable?

Will

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