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From: kdf@nott-cs.UUCP
Newsgroups: comp.sys.tandy
Subject: Re: Double-sided disk for LDOS 5.3
Message-ID: <5337@robin.cs.nott.ac.uk>
Date: Tue, 2-Jun-87 21:27:05 EDT
Article-I.D.: robin.5337
Posted: Tue Jun  2 21:27:05 1987
Date-Received: Sun, 14-Jun-87 20:51:23 EDT
References: <12082@topaz.rutgers.edu>
Reply-To: kdf@cs.nott.ac.uk (Ken Farnen)
Organization: Computer Science, Nottingham Univ., UK.
Lines: 27
Keywords: LDOS 5.3, Model III


Ahh! This does bring back happy memories! I haven't hacked LDOS for 18
months now!

As my memory serves me, there is a problem in the boot disk driver (the one
that has to load SYS0/SYS et. al.) which makes it impossible to boot
a DS disk....

However, a little sneaky fiddling can sort it out, this is the way I used to
do it on my Mod. 1:
format your DS disk.
Manually (i.e. with a sector editor) lock out the 2nd side of the disk for the
first few tracks (this involves editing the GAT table to make LDOS think the
space is allocated)
Now you can copy SYS0/SYS onto the disk.. also anything else you are liable to
need at boot time, like CONFIG/SYS etc.
Go back to your editor and un-lock the other side
Copy the rest of the system on
Your disk should now boot (I'd advise keeping one as a master - and copying it
from thence!)

I hope that info came out of the back of my mind OK - I definitely managed to get my
Mod. 1 booting DS/DD disks!

Ken Farnen.
If you want to E-mail me use ...!mcvax!ukc!matr-a!ken NOT the address at the
top of this message - THANKS :-)