[net.micro.cbm] Lost file recovery

samb@tekcae.UUCP (Sam Bennett) (05/07/86)

     A friend called me the other night having just initialized one of his
system disks.  He wanted to know if I could help him recover his files.
I have heard of programs that do this but do not have one and don't know
where to get one.  Can anyone point me in the right direction of a program ?
Is there a way I can edit back in whatever was taken out of the directory 
track to reach the files ?

Others might find this information useful so please respond by any means
you would like.

6080733@pucc.BITNET (Gavin Bell) (05/09/86)

>     A friend called me the other night having just initialized one of his
>system disks.  He wanted to know if I could help him recover his files.
>I have heard of programs that do this but do not have one and don't know
>where to get one.  Can anyone point me in the right direction of a program ?
>Is there a way I can edit back in whatever was taken out of the directory
>track to reach the files ?
--------------
Well, it depends.  If your friend did a 'long new' (n0:diskname,id) then there
is no chance of recovery, since the drive writes over every track on the disk
while initializing it.  If he did a 'short new' (n0:diskname) then only the
disk directory is wiped.  It is still tough to get the files back, however.
Inside the 1541 by Datamost describes the technique for recovering files
from a short new-- it basically consists of guessing where the file starts
by using a disk editor and looking for information that looks like the start
of the program (not too tough if it's in Basic-- almost impossible if it
was machine language) and creating a directory entry with the proper track/
sector links.  I don't think there are any programs smart enough to do this
automatically, although I may be wrong...
Frederick J. Bear  (I have too much hair-- SCARE Fred Bear!)
 
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