Re: Disk Repair

[STEFAN@DSMNET.COM (Steve Mahr)]

GUDATH@EZINFO.VMSMAIL.ETHZ.CH (Henrik 'Ratte' Gudat) wrote:

>In <4vq3m4$85f@news.ysu.edu> be404@yfn.ysu.edu writes:

>> I have a 5.25in ProDos disk on which track 0002 has been trashed.  I don't
>> know enough about it to reconstruct the track.  I have inspected the disk
>> with a track and sector editor and the files are intact.  The directory
>> tracks are fine. Only track 0002 is bad.
>> 
>> Any suggestions would be greatly appreciated.

>> Adalbert Goertz responds >>>>>>>>>>>>
>> 
>> I have the same problem with a 20SC hard drive. Any suggeestion as to how to
>> repair this HD?
>> What would cause this in the first place?

>Dr. b0z0 replies ->

>It depends on how the block got trashed:
>- if it's physically damaged ("bad block"), you might want to try a low-level
>  disk copier such as Copy ][+. Maybe it can rebuild the block or portions of
>it.
>- if it got trashed by a software bug (or virus), you have a real problem.
>  You can try finding the beginning of each file and then write your own disk
>catalog from scratch. You need a thorough understanding of the layout of ProDOS
>disks, though.

>In either case, I'd meet Mr. Fixit and see if it can recover
>some of the pointers.  It's one of the greatest programs out there. Don't leave
>home without!

Mr. Fixit won't touch it.  I tried that.  I'd write my own disk
catalog, if I knew how to.

Thanks for the comments.


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>Synergetix