Help: simulated OS/8 gen

Gooijen H GOOI at oce.nl
Sun May 1 03:46:14 CDT 2005


  Hi Dennis,

this looks familiar to me :~)  strugled with that too.
With the help of Vince I got it OK (so far).
Check www.pdp-11.nl and click the link "Homebrew PDP-8" at the left side,
maybe it can be of help to you.

- Henk, PA8PDP.


-----Original Message-----
From: cctalk-bounces at classiccmp.org
To: cctech at classiccmp.org
Sent: 1-5-2005 2:57
Subject: Help: simulated OS/8 gen

Dear all,

I'm trying to construct an OS/8 environment under SIMH.  I'm trying to
use an RK05 device for the SYS volume, but can't seem to get the BUILD
procedure right.  The OS/8 distribution I grabbed is dectape images
of V3D from http://www.pdp8.net/images/images/misc_dectapes.shtml.

Here's what I've done so far:

	sim> at dt0 Dectapes/AL-4711C-BA.tu56
	DT0: 12b format, buffering file in memory
	sim> at dt1 Dectapes/AL-4712C-BA.tu56
	DT1: 12b format, buffering file in memory
	sim> at rk0 sys.dsk
	sim> at rk1 user.dsk
	sim> b dt0

	.R BUILD

	$

At this point, I can't seem to INSERT or SYS anything resembling an
RK05 system disk.  If I:

	$LOAD DTA1:RK08SY

then I can:

	$SYS RK8:RKA0

but when I try to do BOOTSTRAP I get:

	$BO
	?SYS
	$

I also fiddled with PIP and the /Y and /S flags, trying to just build
a copy of the tape on the disk, to no avail.

I'm sure I'm just a dunderhead.  Can anyone provide some hints?

Thanks,

De



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