7 Apr
2020
7 Apr
'20
3:59 a.m.
On Mon, Apr 6, 2020 at 5:00 PM Dennis Boone <drb(a)msu.edu> wrote:
It's the rest of the sources from the last disk. You can mount it like so
if you add a 'att rk1 5.tape' to the above
# mkdir /rk1
# /etc/mount /dev/rk1 /rk1
> File 8 - appears to be some sort of archiver output, but while the .ARC
> extension might lead you to suspect the old CP/M - MSDOS ARC program was
> responsible, that doesn't appear to be the case.
You'd think that from the name, but you can mount it also like the above.
With the 'att rk2 8.tape' and 'att rk3 11.tape'
# chdir /dev
# /etc/mknod rk2 b 0 2
# /etc/mknod rk3 b 0 3
# mkdir /rk2 /rk3
# /etc/mount /dev/rk2 /rk2
# /etc/mount /deev/rk3 /rk3
> File 11 - this is an older format tarball.
Nah, somebody else used the disk before for TAR, and then this was
overwritten with a unix filesystem.
What's weird is that this is a VENIX system, which should be V7 which
should have a different filesystem layout from V6. I'd think I wouldn't be
able to see some directories. I'll have to create a V7 system and mount it
there...
Warner
The tape was made by a PDP-11 system running RT-11.
This manual may
help a little:
http://bitsavers.org/pdf/dec/pdp11/rt11/v5.6_Aug91/AA-PD6PA-TC_RT-11_Volume…
TL;DR - This tape was written by just copying disk files to it, so the
files which contain actual data are just images of the disk files.
File 2 is a V6 image that's bootable like so
%pdp11
sim> set cpu 11/45
sim> att rk0 2.tape
sim> boot rk0
@rkunnix
login:
File 5 - this looks like a file system image.