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Path: utzoo!watmath!clyde!burl!ulysses!allegra!princeton!caip!cbmvax!daveh
From: daveh@cbmvax.cbm.UUCP (Dave Haynie)
Newsgroups: net.micro.amiga
Subject: Re: 1.2 Notes and a bug (kinda)
Message-ID: <357@cbmvax.cbmvax.cbm.UUCP>
Date: Fri, 6-Jun-86 13:09:32 EDT
Article-I.D.: cbmvax.357
Posted: Fri Jun  6 13:09:32 1986
Date-Received: Sun, 8-Jun-86 04:16:56 EDT
References: <465@elmgate.UUCP>
Organization: Commodore Technology, West Chester, PA
Lines: 39

>    The tools disk was badly damaged.  Diskcopy said NO_WAY_BUDDY!!!
>    Thanks to a program called disksalvage (not diskdoctor) I was able to
>    recover most of the executables. However most of the sources directory
>    was cut.  The first two tracks of the disk were completly gone. Odviously
>    diskdoctor expects a formatted disk and then just fixes up the
>    filesystem. It won't play if the media is munged up. Disksalvage on the
>    other hand copies every readable block to a new formatted disk then
>    fixes the filesystem.
> -- 
> Jeff Gortatowsky       {allegra,seismo}!rochester!kodak!elmgate!jdg
> Eastman Kodak Company  
> <Kodak won't be responsible for the above comments, only those below>

Is that DiskSalv?  I wrote DiskSalv, and put it up on the net awhile ago.
I'd always try recovering a disk using DiskSalv first.  It does nothing at
all to your original disk, so you can always try something else later.  The
DiskDoctor program is supposed to try to rebuild the bad disk itself, so
it has the potential at least of damaging a badly trashed disk.  The last
version of DiskDoctor I saw would sometimes make a dangerous recovery; i.e.,
the files were recovered but anything new put on the disk could cause it
to get clobbered again.  DiskSalv rebuilds the new disk at the DOS level,
it doesn't try to play around with rebuilding a disk's structure, so with
it you'll always have a safe disk as a result, though there certainly are
things DiskSalv can't restore (basically any disk block that's pronounced
unreadable by the trackdisk.device, though a directory entry on one of these
blocks has no effect on the ability to recover an otherwise OK file member
of that directory).


-- 
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Dave Haynie    {caip,inhp4,allegra,seismo}!cbmvax!daveh

	"I read dozens of books, 'bout heros and crooks,
	 and I learned much, of both of their style.."
						-Jimmy Buffet

	These opinions are my own, though for a small fee they be yours too.
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