>OK, as long as I don't run into any unforseen trouble that keeps me from
>having time, I plan on installing RT-11 on a large disk in the next few
>days. However, I won't be using the nice WQESD ESDI controller that I've
>got that makes partitioning disks easy. So I want to make sure I
>understand how partitioning works under RT-11.
Doesn't it do the partitioning in hardware anyway? Of course that is
easy... they become separate units...
>If I'm reading the manuals correctly I would first boot off of my RL02
>pack and do the following
>
>.INIT/BADBLOCKS DU0:
>
>then
>
>.SQUEEZE/OUTPUT=DU0: DL1:
>.COPY/BOOT DL1:RT11FB.SYS DU0:
That should be
.SQUEEZE/OUTPUT:DU0: DL1:
.COPY/BOOT DU0:RT11FB.SYS DU0:
>and then boot the system from DU0: So far that's pretty straight
>forward, and except for using SQUEEZE to copy the distribution, pretty
>much the way I got it from RX50 to RL02.
Squeeze is a faster way of doing the copy when the output volume is
a freshly initialized volume. You could do it with a COPY/SYS...
>Now then since I'll want to use more than just the first 30Mb of the Hard
>Drive, I'll need to set up partitions. Do I do this prior to
>initializing DU0: or after booting from a freshly installed DU0:?
There are a number of factors involved... you need to ensure that the
partitioning in the DU driver you are using to write to the DU device
is the same as the DU driver which gets written *to* that device. If
not, you could write the data just fine, but not be able to find it
easily.
An example of this might be having a specially-partitioned XM version of
the DU driver. You use it to copy a system to some other partition,
but you set it to boot RT11FB (which uses a different copy of DU -- the
one built for SB/FB) and then boot the volume... when it gets up far
enough that it tries to use the FB version of the handler, it references
an entirely different partition.
>I realize the command to do the partitioning is:
>
>.SET DU0 UNIT=0,PORT=0,PART=0
>.SET DU1 UNIT=0,PORT=0,PART=1
>.SET DU2 UNIT=0,PORT=0,PART=2
>.SET DU3 UNIT=0,PORT=0,PART=3
Personally, I like to think more hierarchically, doing the PORT, then
UNIT, then PARTition. But yes, this could work. I also tend to keep
the DU0-DU3 devices mapped to partition zero of the corresponding
physical units:
.SET DU0 PORT=0,UNIT=0,PART=0
.SET DU1 PORT=0,UNIT=1,PART=0
.SET DU2 PORT=0,UNIT=2,PART=0
.SET DU3 PORT=0,UNIT=3,PART=0
and then assign the non-zero partitions to DU4-DU7 (this is with a handler
without the extended unit support, of course).
>Also I assume that a partition has to be 65,535 blocks, but does the last
>one have to be that, or will it simply be however much space is left?
It is automatic. All partitions other than the final one will be
65536 (not 65535) blocks in size. The last one will be whatever is
leftover (total_size % 65536). BTW - although the partitions are
65536 blocks in size, the last block is reserved, so the effective
size is 65535.
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 |
+--------------------------------+-------------------------------------+
No, I only soaked them for about an hour. They quickly reached a point where
no more oxide will come off with a foam-type "q-tip". Still, there is so
much oxide left that won't come off... I'm sending the heads in for work
today.
Thanks for the tip!
Jay West
-----Original Message-----
From: John Lawson <jpl15(a)netcom.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Tuesday, August 10, 1999 11:58 PM
Subject: Re: 14" hard drive refurb....
>
>
> JAY!!! I **hope** you read this before tomorrow! Please remove
>the heads from the alcohol right now... it is unpredictable what
>long-term immersion in 91% isopropanol will do to a head assembly..
>but I doubt anything good.
>
> It is possible to soften and dissolve the coil binders, and
>possibly to delaminate the magnetic core... and at the least to
>impregnate the coils with alcohol, which will then be released as a
>vapor or liquid contaminant over time... maybe carrying goo from the
>stack.....
>
> I hope that nothing evil comes of this... but overnight soaking
>in **anything** is >not< the way to clean up magnetic heads.
>
>
> Hoping for the best..
>
>
>John
>
>
>
Hi,
The IMSB407 Ethernet TRAM (Size 8, T222 + 64K SRAM + 7990 LANCE +
thinwire transceiver), according to inmos bulletin 324 at
http://www.hensa.ac.uk/parallel/vendors/inmos/archive-server/bulletin/b324.…
requires the s507a support package. I have the s507b support package
and apparently it is for the IMSB300. Does anyone have the support
package for the IMSB407?? Or can I use the s507b?? Thanks
Ram
--
,,,,
/'^'\
( o o )
-oOOO--(_)--OOOo-------------------------------------
| Ram Meenakshisundaram
| Senior Software Engineer
| OpenLink Financial Inc
| .oooO Phone: (516) 227-6600 x267
| ( ) Oooo. Email: rmeenaks(a)olf.com
---\ (----( )--------------------------------------
\_) ) /
(_/
On Sun, 8 Aug 1999 21:15:44 EDT Glenatacme(a)aol.com writes:
>Sellam Ismail replied:
>
>> I think its worth holding onto because its a part of the history of
>>the product. It tells a bit about the company at that point in its
>>life in terms of the packaging design and such. If the styrofoam is
making
>>a mess then perhaps it'd be best to throw that out, and then maybe fold
>>the box up and stick it away somewhere to preserve it for posterity.
>
>In general, Tony, I agree with Sam. The packaging can provide insight
>into both the packaging technology of the times and the marketing
strategy
>(some of the claims on those old boxes are outrageous, and the graphics
can
<SNIP>
Oh yeah, like the time Commodore shot itself in the foot claiming on the
outside of the box that the C64 could run CPM programs! Of course then
the FTC stepped in. . . .
Jeff
___________________________________________________________________
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Just obtained a 1p and have two questions
1) how does this differ from the C1P which I had in high school (other than
they slapped a nicer looking plastic case over the metal case)?
2)Does anyone have any software for it? I had a whole bunch (but that was
1981)!I can still remember a company called AARDVARK SOFTWARE sold a bunch
of great games........
mark
-------
ICQ 40439199
http://www2.msstate.edu/~mja2
> 1) The Controler <-> drive cable, can I crimp a three
>appropriately sexed IDC connectors on to flat ribbon cables for hookup?
You should be able to...
> 2) How to hook up the drive control panel? The 3900 has a
>connector that is wired to the bulkhead and the drive, it also holds a
>"unit number" plug. The BA123 has its normal DRIVE 0 WP/Ready control
>with a different sized connector. Can I adapt it to the RF7x series
>drive? How?
I'm sure it could be done electrically... but I'm running several
DSSI drives on a KFQSA (in a VS3600) with no unit select anything.
> 3) DSSI terminators connect to the scsi like DSSI connector, if I
>put a SCSI 2 connector on my cable can I use an active SCSI 2 terminator
>instead?
Do NOT, I repeat, *DO NOT* use a SCSI terminator on a DSSI cable.
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 |
+--------------------------------+-------------------------------------+
Sorry Allison, I meant to say the head was heavily coated with oxide from
the disk platter, not oxidized itself! :)
I just removed the two lower heads, and neither comes clean with 91%
alcohol. Now I'm just soaking the heads in a glass in the alcohol, and
waiting overnight to see if they'll then come clean. If that fails, I was
wondering about a toothbrush with just 91% alcohol.
Ok, this is the challenge. NetBSD runs flawlessly on my KFQSA in the 3900
but hangs using the SIGMA RQ11D in my uVax 3. Since I have an "extra" KFQSA
(now knowing how to configure it!) I could put it into my BA123 but that
appears to be a challenge when no documentation is present :-)
Some questions:
1) The Controler <-> drive cable, can I crimp a three appropriately sexed
IDC connectors on to flat ribbon cables for hookup?
2) How to hook up the drive control panel? The 3900 has a connector that
is wired to the bulkhead and the drive, it also holds a "unit number" plug.
The BA123 has its normal DRIVE 0 WP/Ready control with a different sized
connector. Can I adapt it to the RF7x series drive? How?
3) DSSI terminators connect to the scsi like DSSI connector, if I put a
SCSI 2 connector on my cable can I use an active SCSI 2 terminator instead?
As always, thanks!
--Chuck
Guys:
If there is anyone out there who is running RT-11
on an 11/03, could you please reply to me via private
e-mail?
Thanks!
Jeff
We now return you to our regularly scheduled programme . . . .
___________________________________________________________________
Get the Internet just the way you want it.
Free software, free e-mail, and free Internet access for a month!
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Another classic computer maker "bites" the dust.
See: http://www.news.com/News/Item/0,4,40250,00.html
Which is a news.com story about how EMC (makers of storage products mostly)
will buy Data General for 1.1 billion in stock. This was the last of the
great mini-computer companies that had been left standing after DEC was
bought by Compaq.
I'm looking for other examples, but I believe this leaves IBM (System 360)
and Sun (SPARC) as the last two companies who designed their own computer
architecture still standing under their own name. (I don't count Xerox
since they don't sell their D-series machines any more).
Companies known to have gone away:
DEC
Data General
Tandem
Prime
--Chuck
