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Conference 7.286::atarist

Title:Atari ST, TT, & Falcon
Notice:Please read note 1.0 and its replies before posting!
Moderator:FUNYET::ANDERSON
Created:Mon Apr 04 1988
Last Modified:Tue May 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1433
Total number of notes:10312

755.0. "Disk Recovery Program?" by KERNEL::BARTLEY () Tue Jan 30 1990 23:30

    
    Does anyone know of any programs that can recreate the index file if
    it's corrupted, and that can make other attempts at rescuing disks
    that have had a minor hdi or some other corruption?
    
    Thanks,
    
    Theo
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755.1 Try the knife!UKCSSE::KEANEWed Jan 31 1990 06:0110
    
    Hi Theo,
    
    Have you looked at HIsofts "The Knife" disk program?. There was a
    review for it in STWORLD recently, It appeared to do all sorts of magic
    things on  the floppies !
    
    Cheers
    
    Pat K.
755.2You have a chance with text filesRODNEY::PETERSDon Peters, CTC2-1/F10, 287-3153Wed Jan 31 1990 12:4513
"recreate the index file"?

In general, it seems like this is an impossibility. I had to do that once, but
the thing that saved me was that I had to reconstruct the index for a text
file. Via use of a program that was called Disk Doctor (I think), I was able
to check the content of each sector and note which ones had to be linked
together. Then I wrote a GFA Basic program that read all these sectors into
memory, and then wrote them out to a new file.

It worked just as I expected, but it was a tedious process finding the right
sectors and determining their order. Its sort of like trying to solve a
one dimensional puzzle. If the file to be reconstructed is not text, you have
little clue as sector ordering.
755.3KERNEL::BARTLEYWed Jan 31 1990 22:0610
    Thanks Guys,
    
    I'll investigate the HiSoft product.  
    
    I was hoping there might be a PD product on the net, but clearly
    from your answers there isn't.  Oh well!
    
    Regards,
    
    Theo
755.4PD Program AvailableSUBURB::JAMESHLeft Handed People are SUPER NaturalThu Feb 01 1990 06:593
    There is a PD program which I got with a magazine. I'll try to look
    it out tonight and bring it in tomorrow.
    ...Howard
755.5DLIICARAFE::GOLDSTEINPraise be to Nero's NeptuneThu Feb 01 1990 13:008
    There's also DLII, which undeletes files and will copy FAT2 to FAT1 (or
    the opposite) if one of them (you guess which one) is corrupted.  It's
    by Simon Poole, author of Uniterm, and it has been a life-saver!  My
    copy is at 
       CARAFE::USER1:[GOLDSTEIN.ST]DLII.ARC
    
    (Is Simon Poole the Peter Norton of the ST?)
              fred
755.6Protection Violation on DLIIKERNEL::BARTLEYThu Feb 01 1990 22:337
    Hi Fred,
    
    I tried to get your DLII, but the account or the file is protected.
    
    Regards,
    
    Theo
755.7Recover.ARCSUBURB::JAMESHLeft Handed People are SUPER NaturalFri Feb 02 1990 07:184
    You can find "recover.arc" in CMOTEC::$1$DUA1:[JAMES.ATARI].
    I've not tried it so don't know how good it is. They say it's best
    on text files.
    ...Howard
755.8DLII available again (see .5)CARAFE::GOLDSTEINPraise be to Nero's NeptuneWed Feb 14 1990 20:232
    re:.6
    Sorry; I have fixed the protection.  Try again.
755.9Thanks FredKERNEL::BARTLEYTue Feb 20 1990 09:006
    Thanks Fred,
    
    I've got DLII in my account now.  I'm looking forward to transferring
    it to the ST and finding out what it can do.
    
    Theo.
755.10One more naive person.. (Me)TENERE::JARDINWed Apr 18 1990 11:4013
    
    As I unfortunately got the same problem as some others (directory
    crash) I am looking for any possible solution.. 
    
    I could import Fred's DLII but could not access Recover.arc (see .7)?  
    I am facing an "access violation" error..Any help welcome.
    
    Since the last note posted here was in February.. has there been any
    new solution that those kindly indicated in the other notes?
    
    Thanks
    
    Pierre
755.11MS-DOS utility helped !HAMSUP::MARXSENUniv.Milky.Sol.Earth.FRG.HamburgTue May 22 1990 14:4612
    Hi folks,
    
    a friend of mine had a disk crash and visited me, placing a bit-copy
    of it on my desk. We tried some ATARI stuff on it without success.
    As a last try I slipped the disk into the drive of my IBM-compatible
    laptop and started the RECOVER program which is part of the original
    MS-DOS distribution.
    			... AND IT WORKED !!!
    
    So, thanks to the good compatibility between ATARI and MS-DOS format !
    
    
755.12Here is UNDELETE...May you never need to use it :-)OLDTMR::WALLACEFri May 25 1990 16:4117
The public domain program on the ST called RECOVER is fairly useless (unless
you're into pain and sweat :-). It's problem is that it requires you the user
to figure out what sectors need to be put together and in what order in order
to recover the deleted program.

I did find a much better program which will automaticly do the undelete for
you.

It can be copied from OLDTMR::$1$DUA8:[WALLACE.PUBLIC.ST]
	UNDELETE.ARC	- This program will show you a list of deleted 
			  files and let you pick which ones you want
			  un-Deleted. It will then recover/undelete the
			  program automaticly (without any further information
			  required by you). I've only used this once just to
			  try it out. It was easy to use and it worked fine.

	Ray