21 Jan
2003
21 Jan
'03
5:32 p.m.
Clayton Frank Helvey <msspcva(a)yahoo.com> wrote:
Mike, FYI this is what John wrote...
Thanks for translating!
John Willis <jwillis(a)arielusa.com> wrote:
Awesome. I don't have the drive yet, but it seems
to
me to be the best
option for getting BSD loaded on my VAX 11/750.
It's the only proper way!
Are you going to load the copy and boot standalone programs from the first file
on the magtape or from TU58? The first option is obviously easier, although I
do have an image from which you can write the BSD install TU58.
But if you are going with the first option, your tape drive on the 750 must be
non-TMSCP, as there is no toggle-in bootstrap for TMSCP. Also in 4.3-QJ0a I've
added two blocks for MicroVAX booting in front of the first file on the dist
tape, but didn't update the Installing and Operating manual, so when you follow
the instructions in Appendix B for your tape flavor, mentally increment by 2
the number of times you type "S 200".
MS
21 Jan
21 Jan
6:37 p.m.
--- Michael Sokolov <msokolov(a)ivan.Harhan.ORG> wrote:
Clayton Frank Helvey <msspcva(a)yahoo.com> wrote:
And historically common for VAXen (not for PDP-11s... see below...)
Mike, FYI this is what John wrote...
Thanks for translating!
John Willis <jwillis(a)arielusa.com> wrote:
Awesome. I don't have the drive yet, but it
seems to
me to be the best
option for getting BSD loaded on my VAX 11/750.
It's the only proper way!
Are you going to load the copy and boot standalone programs from the
first file on the magtape or from TU58? The first option is obviously
easier... ... although I do have an image from which you can
write the BSD install
TU58.
That'd be handy, even if you have to use a TU58 emulator (there are
several, hardware based and software based).
But if you are going with the first option, your tape
drive on the 750
must be non-TMSCP, as there is no toggle-in bootstrap for TMSCP.
Is there a "toggle-in" VAX bootstrap for a TS-11 or TU-80 or for
anything for that matter? Between 1984 and 1994, I installed a lot of
operating systems on PDP-11s and VAXen, and my experience is that
for VAXen, the magtapes were never bootable - you booted a console
floppy/tape/disk pack/whatever that had drivers for pre-TMSCP
tape drives (MT and MS) and you told the standalone programs which
disk to copy to and which tape to copy from (our primary machine
at work had a MASSBUS-attached TU-78 and a Unibus-attached TU80 - I
kept the TU-80 ;-)
In the case of PDP-11s, the magtapes _were_ typically bootable - you
had to grab either an MT or MS-aware tape before beginning. This goes
for DEC stuff like RSX and RSTS as well as 2.9BSD, the PDP-11 Unix I
have the most experience with.
Things changed a bit with MicroVAXen - early OS kits assumed RX50, later
ones assumed TK50, but never magtape.
I've added two blocks for MicroVAX booting in
front of the first file on
the dist tape, but didn't update the Installing and Operating manual...
You will probably have to cruft up something close to that, but one
aware of the 11/750 if you are going to make a bootable magtape.
Never seen it done, but that doesn't mean that it _can't_ be done (with
a little extra work).
-ethan
__________________________________________________
Do you Yahoo!?
Yahoo! Mail Plus - Powerful. Affordable. Sign up now.
http://mailplus.yahoo.com
8009
days inactive
8009
days old
1 comments
2 participants
participants (2)
-
erd_6502＠yahoo.com -
msokolov＠ivan.Harhan.ORG