Backup of Foundation Disk 1 (6300+)

[Mitch Che]

Thanks to all who responded to my question concerning backing up
the UNIX foundation disk 1 for an AT&T PC 6300 plus.  It turns
out that the easiest way to back up this disk is to use the
MS-DOS diskcopy command on a 1.2 meg drive, either on the 6300
itself, or another MS-DOS system.

It turns out that I get read errors on my ORIGINAL foundation
disk 1, so this may be why copying from the ua command window
("Make MSDOS copy") fails every time.  My copy made by MSDOS
diskcopy has a couple of bad sectors (from the original) but
it doesn't seem to make any difference in terms of being able
to boot and restore the operating system.

A co-worker (thanks Steve) also provided me with this summary of
making a bootable disk.  Hopefully the original authors don't
mind.
======
Subject: Bootable floppy
Date: 15 Sep 88 00:23:43 CDT (Thu)
From: bill at carpet.WLK.COM (Bill Kennedy)

John Rudd sent us a more rational "disaster recovery" procedure than my
"cookbook" suggestion.  If the discussion gets any more thorough, I'll
move it to plustech, but we should all know how to recover in case the
worst strikes.  In addition to what John says, I'd suggest that you get
fsdb onto that floppy.  You can repair a lot with it and if you are as
desparate as I was you can even learn how to use it :-(  Bill M helped
me over the rough spots, but use it as a good luck charm.  Have it there
ready to go so you won't need it...  Thanks John!

>Date: Wed 14 Sep 1988 14:11 CDT
>X-Postmark: ixwsc!rudd
>Subject: Re: Building a new kernel
>
>I remember either some very old mail or a netnews article on
>this subject from a few years back. With regard to the "bootable
>floppy", the recommendation back then was:
>
>1) make a copy of floppy 1 (of 7) of the foundation set. It turns
>   out that the MS-DOS "diskcopy" command works well to make this
>   copy. Note that you must use a 1.2MByte floppy.
>
>2) while running UNIX, mount this floppy (as /mnt for example).
>   The UNIX documentation suggests:
>     /etc/mount /dev/dsk/f0q15d /mnt
>
>3) Either: a) remove /mnt/.profile or: b) edit /mnt/.profile to
>   get rid of the installation stuff and add whatever you want to
>   set up your "floppy UNIX" environment.  I chose to "rm" it.
>
>You now have a bootable UNIX floppy that will give you the "#"
>superuser prompt after boot is complete. (I did this just in
>case /dev/dsk/0s1 ever gets so damaged that it becomes necessary
>to repair it. BTW, "fsck" runs nicely while /dev/dsk/0s1 is
>mounted as /mnt provided not too much scratch space is needed by
>fsck.)
>John Rudd att!beehive!rudd
-- 
Mitch Che   Pacific Bell   415-823-2454       "All day long, a tough gang of
---------------------------------------     astrophysicists would monopolize the
disclaimer, disclaimer, too                     telescope and intimidate the
uucp:{ames,bellcore,sun}!pacbell!pbhyf!mche           other researchers."