Hi Jerry,
You’ve made pretty good progress.
Yes with the right input and help this can happen. ;-)
And all the help is much appreciated!
If you haven’t already, Google for and look at the manual for the SQ739. I
think you will find that most of the
commands for the on-board diagnostics are the same. The unibus controller will
have a
different layout and perhaps a physical vector switch, but you should be able
to sort out the differences.
Not done by now, but is now noted and on the plan for the weekend, I'm
also interested to know about the jumper settings as there are some of them.
What version of RT11 do you have? The later versions would show the
CSR that the hander is set to.
Its: RT-11SJ (S) V04.00I ... quite old.
You mention a RC25. Is that on another machine? If you have two MSCP
controllers in the same backplane (KLESI? + SU723) then that is more complex.
My guidance below assumes the SU723 and a bootable RX02 device are
the only disks. Do not follow if you have two MSCP controllers installed.
That's the right assumption, I have two /84 one with lesi and working
RC25 where I have created the Floppy disks, and a playground mostly
empty, but now equipped with SCSI and RX211.
The address 160340 is not what is normally expected “standard” CSR for a MSCP.
Its is easy to change the handler address.
First make a copy of the DU.SYS handler to preserve it.
copy/sys du.sys duorg.sys
Done
The set the CSR that you are using
set du csr=160340
Output:
.SET DU CSR=17760340
?DU-W-Patch handler bootstrap, put CSR at 3264
Try vector address 154 first, unless you know the board is configured
differently.
It appears already set for this, but here is how you change it.
set du vector=154
Output:
.SET DU VECTOR=154
.
You should then be able to install and load the handler.
install du
Output:
.INSTALL DU
.
load du
Output:
.LOAD DU
Depending on the DU handler, it is possible to map a large MSCP image to
multiple
partitions. If the handler installs, try the following. It show a basic
mapping.
Single controller, single drive and in this case 8 partitions. The first
partition
should be the same as below. An RZ22 would normally only have space
sufficient for 1 partition.
show de:du
Device Status CSR Vector(s)
------ ------ --- ---------
DU Resident 172150 154
DU0: is set PORT = 0, UNIT = 0, PART = 0
DU1: is set PORT = 0, UNIT = 0, PART = 1
DU2: is set PORT = 0, UNIT = 0, PART = 2
DU3: is set PORT = 0, UNIT = 0, PART = 3
DU4: is set PORT = 0, UNIT = 0, PART = 4
DU5: is set PORT = 0, UNIT = 0, PART = 5
DU6: is set PORT = 0, UNIT = 0, PART = 6
DU7: is set PORT = 0, UNIT = 0, PART = 7
Output:
.SHOW DE:DU
?KMON-F-Illegal command
.SHOW DEV:DU
?KMON-F-Illegal command
(RT11 Version to old?)
.SHOW DEV
Device Status Vector
-------------------------------
US Not installed 410
DL Not installed 160
RK Not installed 220
DY Resident 264
DX Not installed 264
LP 146676 200 204
SC 143332 000
HC Not installed 330 334
BS Not installed 300 304
VW Not installed 270 274
NL Installed 000
LS Installed 200 204
MS Not installed 224
MM Not installed 224
* DU 141440 154*
So something happens and we have a first progress.
Since you already did a SCSI format from the controller or if the drive
was previously formatted, you will not need to repeat this. The RT11 FORMAT
command does NOT support this as an MSCP device. Note: the handler can be
configured to more partitions and disk space than actually exist on the drive.
You can examine the contents of the drive to see if it readable.
dump/term du0:/end:1
Dump is unfortunately not available on my disk by now, but will add
them, when I have moved the RX02 back to the other PDP.
If the handler loads but doesn’t access the drive, check the vector address
first.
Once you are sure the contents are not needed, you can try an initialize.
Good luck.
Jerry
j...@ieee.org
Is it maybe better to start with a newer version of RT11?
In the meantime I have managed to test RX02 Imaging with Joeg Hoppe's
PDP11GUI. Works perfect and looks like a great tool.
If I load the MSCP driver via PDP11GUI and use address 160340 I can also
dump the DU0 (RZ22) disk to my PC, so it seams to be working.
I have not found a newer RX02 RT11 Distribution Set by now, do you have
some tip were I can find and download one? Google doesn't return any
rx02 files, only ready to use images for RK/RL, ....
Many thanks for your Support
Ulrich
