installing 2.11BSD on a pdp11/53 - test-drb@ccmp.vtda.org

30 Nov 2013

The process I outlined is purely for disk image manipulation, it has nothing
to do with tape images or usage.

The UC17/18 Emulex controllers I have maintain the per disk configuration info
in a separate NVRAM on the card. They don't store any info on the disk itself.

-----Original Message-----
...
 From: Holm Tiffe <holm at freibergnet.de>
Sent: Nov 30, 2013 4:10 PM
To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at
classiccmp.org>
Subject: Re: installing 2.11BSD on a pdp11/53

Don North wrote:

  If you can get a SCSI card for a PC, or a unix
system with SCSI disk 
 interface, you are golden.

 Here is what I did to get 2.11BSD over to my 11/44 with an Emulex UC18 SCSI 
 controller:

 (1) Use SIMH to configure/build a working 2.11BSD system from scratch 
 tapes, if you desire.

 (2) Or you can get pre-built 2.11BSD image from here: 
 http://www.ak6dn.dyndns.org/PDP-11/2.11BSD/
       or other locations on the net as well. The image I built is current 
       thru the latest patches.

 (3) Mount the SCSI disk on which you will be installing the 2.11BSD image 
 on your PC/linux box. Use 'dd' to blast the whole image (from (2)) to the 
 disk.

 (4) Dismount the SCSI disk from your PC/unix box, carry it over to your 
 PDP-11, install it, and boot it up.

 Any way you can do a byte-for-byte copy of the SIMH .dsk file to your 
 target SCSI drive should probably work.

 Don

  May be this works wit an CQD220 Controller, but I don't think that this
will work with an Emulex UC07.
The Emulex can partition the disk in some slices, the information where the
partitions are, is somwhere on the disk.

I wrote out Tapes with SIMH to a Unix file and converted those files with
the containing Block length information to a real tape (on some qarter Inch
Tapes with an Tandberg drive [525 MB and up, the smaller Tapes don't
support variable block lenghts]). Done this on FreeBSD.

This way I've created install tapes for 2.11 BSD, RT11, RSX11 and
XXDP.

Regards,

Holm 
-- 
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