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From: uhclem@trsvax.UUCP
Newsgroups: comp.sys.tandy
Subject: Re: Double-sided disk for LDOS 5.3
Message-ID: <193300014@trsvax>
Date: Thu, 21-May-87 17:01:00 EDT
Article-I.D.: trsvax.193300014
Posted: Thu May 21 17:01:00 1987
Date-Received: Tue, 26-May-87 00:45:52 EDT
References: <12082@topaz.rutgers.edu>
Lines: 35
Nf-ID: #R:topaz.rutgers.edu:12082:trsvax:193300014:000:1562
Nf-From: trsvax.UUCP!uhclem    May 21 16:01:00 1987


<restor "madadv.sav">$			how i miss MDL...

To get a LDOS (5 series) to boot from double sided disk requires
a bit of trickery.  The boot sector is the same for single and
double-sided disks (it even gets written on hard disks) and it does
not know about double-sided media in the early stages of
booting.  

Therefore, SYS0/SYS MUST reside on side 0 if you want to boot on that disk.

The way to arrange this on double-sided media is to format a floppy, then
backup SYS0/SYS by itself.  This puts the full boot track on as well, and
places SYS0/SYS starting at cylinder 1, side 0.  Then use backup (by class) to
copy the remainder of the system over to the disk.  Be sure to use
the NEW parameter when copying the remaining files, or you may recopy
SYS0 and not get it where you expect it.  Once you have built a double-sided
boot disk, you can use normal mirror-image copying to make duplicates.

<This information is provided by an individual and is not nor should be
 construed  as  being  provided  by  Radio  Shack or Tandy Corp.  Radio
 Shack/Tandy Corp has no obligation to support the information provided
 in  any  way.  If  it had  a 286  or 386  in  it,  I bet  it would  be 
 supported so well it would get tea every day at 4.>
						
						"Thank you, Uh Clem."
						Frank Durda IV
						@ <trsvax!uhclem>
					...decvax!microsoft!trsvax!uhclem
					...convex!infoswx!trsvax!uhclem
					I was here first, you imposter!


"How many Intel 386 processors does it take to do a 32 bit multiply?
 One, but it takes two more to confirm it got it right."