Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!seismo!uwvax!puff!upl
From: upl@puff.WISC.EDU (Future Unix Gurus)
Newsgroups: comp.sys.mac
Subject: Re: Did Disk First Aid Fail?
Message-ID: <764@puff.WISC.EDU>
Date: Fri, 8-May-87 09:59:12 EDT
Article-I.D.: puff.764
Posted: Fri May  8 09:59:12 1987
Date-Received: Sat, 9-May-87 17:57:58 EDT
References: <992@ark.cs.vu.nl> <993@ark.cs.vu.nl> <3930@utai.UUCP>
Organization: U of Wisconsin CS Dept
Lines: 32
Summary: Type Command-S

In article <3930@utai.UUCP>, dudek@utai.UUCP writes:
> In article <993@ark.cs.vu.nl> kleef@cs.vu.nl (Patrick van Kleef) writes:
> >
> >The wonderful 'Disk First Aid' that came with my Mac SE reports an 
> >'unable to verify status' on my internal harddisk. The manual that came 
> >along clarifies mostly nothing. At least no more than the suggestion 
> >there might be _something_ wrong. Full stop.
> >
> I sure do wish the silly little program would be a bit more
> explicit (i.e. WHY is it unable to verify??!!).

If you want to find out what Disk First Aid is doing, after you have opened
the disk (but before you click Start), type command S.  A window will appear
below the top window and it will tell you exactly what part of the disk it is
checking. Make sure the Caps Lock key isn't down when you type the command S.
	I have also experienced the 'Unable to verify the status of this disk'
message from Disk First Aid 1.0.1 (1.2 is current and just came out with the
4.1 system).  Both times it found problems with the catalog BTree of my Jasmine
Direct Drive 80.  I didn't take any chances, and backed up the disk (91 disks -
anyone know of a good tape backup?) the first time.  The second time, as I was
running the backup program, I noticed that all of my folders had disappeared. I
was still able to boot off the disk and look at the contents of the System
Folder (the folder was open in the Finder) but I wasn't able to recover any
data (fortunately, I'd only restored from the backup that morning!).
	The moral of the story (at least from my observations) is this: if Disk
First Aid finds a problem, there likely is one.  Got those backup floppies
handy?

Robert J. Hammen	U. of Wisc. Undergraduate Projects Lab
{seismo,ihnp4,allegra,topaz,seismo}!uwvax!puff!upl	upl@puff.wisc.edu
GEnie: R.Hammen					{soon to be puff.cs.wisc.edu}