30 Nov
2013
30 Nov
'13
4:27 p.m.
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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