Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!apple!rutgers!cbmvax!cbmehq!cbmger!peterk
From: peterk@cbmger.UUCP (Peter Kittel GERMANY)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Disk Validation (How?)
Message-ID: <462@cbmger.UUCP>
Date: 1 Oct 90 13:52:23 GMT
References: <13185@june.cs.washington.edu>
Reply-To: peterk@cbmger.UUCP (Peter Kittel GERMANY)
Organization: Commodore Bueromaschinen GmbH, West Germany
Lines: 18

In article <13185@june.cs.washington.edu> dylan@june.cs.washington.edu (Dylan McNamee) writes:
>  This is causing the Disk is not Validated
>requestor to pop up, whenever I try to delete or access that part
>of the disk.
>
>Is there a way to force a validation?  Is FixDisk what I want?  What
>is the "standard" way of recovering from such an error?  (I know, we
>_need_ an fsck for the Amiga...)

I only know the hard way: Grab out any good disk monitor, go to the
root block, and set the BitmapValidFlag to zero. In a 512 byte block,
you find this at offset $138, you must zero out all 4 bytes there.
Write that block back and do a power off/on. (Perhaps you also must
adjust the checksum long word at offset $14 before that.)

-- 
Best regards, Dr. Peter Kittel  // E-Mail to  \\  Only my personal opinions... 
Commodore Frankfurt, Germany  \X/ {uunet|pyramid|rutgers}!cbmvax!cbmger!peterk