22 Mar
1999
22 Mar
'99
1:14 p.m.
I am trying to use some DECUS tapes which I obtained; they exist
on tape as one large file with extent .DSK .
Any info on how I can get started unpacking thses files?
Now that the 9trk works, that is.. :)
Cheers and Thanks..
John
22 Mar
22 Mar
2:15 p.m.
John,
If you're running RT-11, Version 5.0 or later:
1) copy the .DSK file (say, file.DSK) to your hard disk
2) type MOUNT LDn: file.DSK (n=0,...,7)
3) then use LDn: just as you would any physical drive,
type, e.g., DIR LD0:
4) to disassociate the LD with the file,
type DISMOUNT LDn:
Sounds like you're getting off a horse! Should have
been, probably, UNMOUNT.
Dave
John Lawson wrote:
I am trying to use some DECUS tapes which I obtained; they exist
on tape as one large file with extent .DSK .
Any info on how I can get started unpacking thses files?
Now that the 9trk works, that is.. :)
Cheers and Thanks..
John
3:45 p.m.
If you're running RT-11, Version 5.0 or later:
The problem is that I don't think he is... I seem to remember
a prior post mentioning RSTS V9.?
I don't think there is any support for the RT-11 logical disk
under RSTS... the RT-11 RTS (run-time system) on RSTS is, I
think, based on V3B of RT-11 with extensions to the CSI for
RSTS UICs and protections...
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
4:05 p.m.
On Mon, 22 Mar 1999, Megan wrote:
This latter is correct... I have used the RT11 RTS under RSTS V9.7
on the 11/44 in question.
If you're running RT-11, Version 5.0 or later:
The problem is that I don't think he is... I seem to remember
a prior post mentioning RSTS V9.?
I don't think there is any support for the RT-11 logical disk
under RSTS... the RT-11 RTS (run-time system) on RSTS is, I
think, based on V3B of RT-11 with extensions to the CSI for
RSTS UICs and protections...
RT11 docs I have complete.. I can look up the 'logical disk'
stuff there.
I think Task #3 (task 1 was getting the 9trk working, task 2 is
putting it all in one [uuuwaaaghhh!] rack) will be to get an RL02 or
two up an on the air... then try to get RT11 of some version
running... then play.
I think I've not just bitten off more than I can chew.. actually I
think the Sandwich itself is bigger than I am.... ;}
Thanks for the help y'all!
Cheers
John
4:18 p.m.
That's why I said "If you're running RT-11, Version 5.0 or later".
If you're NOT, well, that's another story.
There was a DECUS-contributed handler, the SD.SYS handler, back
in Version 3 and 4 that did (does?) the "same thing" as LD in Version 5.0.
Are the two compatible? If so, you could find the SD handler and use
it under RSTS? (Maybe it's on one of the tapes you can't read, yet/!!!)
I haven't found the docs for RT-11 Version 5.0 very useful for
using logical disks. There's all the references you need for commands,
but there are almost NO discussions of how to do common tasks.
I.e., there's no way to put it together to do what you want to do
except by trial and error. Or brilliant deduction, which I usually
don't have.
Dave
John Lawson wrote:
On Mon, 22 Mar 1999, Megan wrote:
This latter is correct... I have used the RT11 RTS under RSTS V9.7
on the 11/44 in question.
If you're running RT-11, Version 5.0 or later:
The problem is that I don't think he is... I seem to remember
a prior post mentioning RSTS V9.?
I don't think there is any support for the RT-11 logical disk
under RSTS... the RT-11 RTS (run-time system) on RSTS is, I
think, based on V3B of RT-11 with extensions to the CSI for
RSTS UICs and protections...
RT11 docs I have complete.. I can look up the 'logical disk'
stuff there.
I think Task #3 (task 1 was getting the 9trk working, task 2 is
putting it all in one [uuuwaaaghhh!] rack) will be to get an RL02 or
two up an on the air... then try to get RT11 of some version
running... then play.
I think I've not just bitten off more than I can chew.. actually I
think the Sandwich itself is bigger than I am.... ;}
Thanks for the help y'all!
Cheers
John
5:54 p.m.
There was a DECUS-contributed handler, the SD.SYS
handler, back
in Version 3 and 4 that did (does?) the "same thing" as LD in Version
5.0. Are the two compatible? If so, you could find the SD handler and
use it under RSTS? (Maybe it's on one of the tapes you can't read,
yet/!!!)
THanks... I had forgotten the name of it. As for being compatible,
I can't see that there is much difference so long as the SD driver
serves blocks from the logical disk as if they were physical block
numbers of a physical disk... the RT utilities should just be able
to cope (so long as the driver follows are the prescribed driver
conventions).
I haven't found the docs for RT-11 Version 5.0 very
useful for
using logical disks. There's all the references you need for commands,
but there are almost NO discussions of how to do common tasks.
I.e., there's no way to put it together to do what you want to do
except by trial and error. Or brilliant deduction, which I usually
don't have.
The LD[X].SYS handler is the heart of it... it is not only a handler,
but a program which has a normal program entry point... if you
R SY:LD.SYS
you will get a CSI prompt, at which you specify what it is you want
to do. I don't know which release had the KMON commands built in,
I thought they were in from the beginning...
Anyway, I think the source for LD (uncommented) is on the kit, so
you could examine the source to see what options are allowed.
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
6:32 p.m.
John Lawson wrote:
I am trying to use some DECUS tapes which I
obtained; they exist
on tape as one large file with extent .DSK .
Any info on how I can get started unpacking thses files?
Now that the 9trk works, that is.. :)
Cheers and Thanks..
Jerome Fine replies:
If you can get those files onto a system which runs UNIX
and also download the Supnik emulator, then you can
also download the V5.3 of RT-11 from:
ftp://gatekeeper.dec.com/pub/digital/sim/software/rtv53swre.tar.Z
After you install everything, you will be able to legally run the
hobby version of the emulator and RT-11.
I would be interested in what is on the tape and maybe
it could be shared with Tim Shoppa who tries to keep
an archive of all PDP-11 software.
Is there some manner by which the 11/44 can communicate
with the internet? Or at least a PC (maybe via Kermit -
yes I realize that a serial port is VERY slow) to the 11/44
can do the job. If you have a 3 1/2" floppy or a 5 1/4"
RX50 floppy on the 11/44 and the files are small (very
often the *.DSK files on a tape were kept less than 800
blocks for this reason), you could transfer the files to a floppy
as a device and then use the floppy as an RT-11 device
under RSTS. If you would like some help, I might be
able to suggest things based on some additional information.
A directory of the *.DSK files giving the DATE and size in
blocks would help. Actually, a directory of the whole tape
might help even more.
Sincerely yours,
Jerome Fine
RT-11/TSX-PLUS User/Addict
9250
days inactive
9250
days old
6 comments
4 participants
participants (4)
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djenner＠halcyon.com -
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mbg＠world.std.com