11 Sep
1996
11 Sep
'96
3:21 a.m.
In atricle by Matthias Bruestle:
Does someone have RL01 drivers for V6 or must I use
V7?
Matthias, I'm pretty sure that the v6 RL driver supports RL01s and RL02s,
the only difference is number of sectors on the RL01.
If you have an RL02 disk image mounted on /dev/rl0, and an empty
RL01-sized disk image mounted on /dev/rl1, you should be able to
say:
$ mkfs /dev/rl1 <size of RL01 in 512-byte blocks>
$ mount /dev/rl1 /mnt
You can then copy over the root files from /dev/rl0 to /dev/rl1 with tar.
One thing to note, the RL02 kernel comes with swap at the end of the
RL02. You will need to rebuild a kernel so that the location and size of the
swap will fit onto a RL01 and still leave some file space. In fact, you must
remember to subtract the swap space size when you do the mkfs.
Best to do this on the emulator and get the RL01 image ready before
moving it to the /34. I also forgot to mention that you need to install
the bootstrap code onto the RL01 image. Check the mkfs man page for details.
The last step would be to download the image over the
serial
line. Is there already a programm for RT-11SJ V4.00
which does this?
Someone did say they have a program to do this. You might want to look
back through the mail archives on the PUPS web page.
Cheers,
Warren
From "Steven M. Schultz"
<sms(a)wlv.iipo.gtegsc.com> Thu Sep 12 01:30:34 1996
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Date: Wed, 11 Sep 1996 08:30:34 -0700 (PDT)
From: "Steven M. Schultz" <sms(a)wlv.iipo.gtegsc.com>
Message-Id: <199609111530.IAA04582(a)wlv.iipo.gtegsc.com>
To: oldunix(a)minnie.cs.adfa.oz.au, wkt(a)csadfa.cs.adfa.oz.au
Subject: Re: UNIX for my 11/34A
Warren -
Greetings.
From: wkt(a)csadfa.cs.adfa.oz.au (Warren Toomey)
Matthias, I'm pretty sure that the v6 RL driver supports RL01s and RL02s,
the only difference is number of sectors on the RL01.
V6 predates the RL02 by enough time that I doubt V6 has RL0? support
unless someone managed to graft it on after ~1979 (by which time V7
was out).
V7 _initially_ did *not* have RL02 support. When we got our first V7
tape in 1979 a RL02 driver was written locally in ~79 or 80. So
unless someone added the RL0? support to V7 and submitted the updated
images to the archives it's doubtful RL devices can be used with V7.
2.9BSD came with the necessary drivers because that system came a couple
years later than V7 and the folks at UCB had had time to write the
drivers and boot support.
One thing to note, the RL02 kernel comes with swap at
the end of the
RL02. You will need to rebuild a kernel so that the location and size of the
Quite right. The 'swaplo' global must agree with the partition table
wired into the driver or the system will end up swapping over top of
the root filesystem. *ick* ;)
Cheers.
Steven