RL02 version of UNIX6?

william degnan billdegnan at gmail.com
Mon Feb 6 21:13:12 CST 2017


Running simH on a $9.95 Next Thing Co CHIP.

1.  I built an RL01 disk with RSX11/M that boots within simH using the
files I found online.

set cpu 11/40
set cpu 64K
set rl0 writeenabled
set rl0 rl01
set rl1 writeenabled
set rl1 rl01
set rl2 writeenabled
set rl2 rl01
set rl3 writeenabled
set rl3 rl01
attach rl0 rsxm32.rl01
attach rl1 excprv.rl01
attach rl2 mcrsrc.rl01
attach rl3 rlutil.rl01
boot r1

[set the time and date]
> ins $boo
> boo [1,54]rsx11m

1.5. Within RSX11/M make it boot into the mapped version each time -
 (after the acs command wait for a response that the checkpoint file is

> acs sy:/blks=0
> sav /wb

2.  I installed a blank RL02 disk (rlRSX11M.dsk is a blank RL02)

3.  I downloaded the tape from bitsavers with the program that copies from
RL01 to RL02

4.  Created a simh script to load up the tape. I called it

set cpu 11/40
set cpu 256K
set rl0 writeenabled
set rl0 rl01
set rl1 writeenabled
set rl1 rl02
attach rl0 rsxm32.rl01
attach rl1 rlRSX11M.dsk
attach TQ0 -r BB-L974F-BC_RSX11M_4.5_BRU64K.tap
b TQ0

This took me into the tape utlity.    I set the date and then entered the

        first device is dl0:
        second device is dl1:

> run bru
BRU> /init dl0: dl1:

5.  I fired up PDPGUI and used the Tools --> Read/write disk images utility
to copy the RL02 disk to an actual RL02 disk on my PDP 11/40 with M9312 ROM
monitor running

Note that you have to play around a little with the disk building process,
this is the best order of steps.  Make sure your system is up and running
and your drive is ready to be written to.  Open the terminal window and
make sure you're ok.  You can use it to watch the progress.
1.  First set the controller type, unit, device
2.  Reload Driver button
This will open a window to load the program, and then a MACRO-11 window.
You should next see the disk utility program being downloaded via the
terminal window
3.  Once this is done, you'll see the first <START OF BLOCK> printed on the
terninal, that means your're ready to go.
4.  Choose the disk image using the Load Image File button
5.  Make sure you're starting at sector 0
6.  Press the top middle button to write the image.

You'll see activity on both the terminal and your front panel, drive light
will blink once for each block.



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