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From: eksa02@castle.ed.ac.uk (P J Hutton)
Newsgroups: comp.sys.mac.system
Subject: Re: Bug ?
Keywords: System 7, Finder. Disk First Aid
Message-ID: <10988@castle.ed.ac.uk>
Date: 12 Jun 91 14:27:49 GMT
References: <1991Jun12.080836.25346@cm.cf.ac.uk>
Organization: Edinburgh University
Lines: 25

In article <1991Jun12.080836.25346@cm.cf.ac.uk> ralph@cm.cf.ac.uk writes:
>It seems highly likely there is a bug in system 7, the system 7 finder, or
>system 7 disk first aid. Here's what happened.
>
>I backed up my hard disk onto tape using fastback II v2.5 (it works if VM
>is off). I then erased my disk from the finder. I then restored my disk. I
>then ran disk first aid to check, and low and behold, DFA said that my disk
>was damaged, and that it was unable to repair the disk. (In detail, it
>complained about an invalid sibling link).
>
>I did NOTHING else in between the restore and running DFA, so it seems
>highly likely that one or other of the system components above is
>responsible for screwing up my directory.


Isn't it more likely that the fault lies with the backup software?  From
what's been described I can't really see how FastBack can be ruled out.
Call me suspicious, but I reckon if you've got to turn off bits of the
system to make something work, then there's another bit just waiting to
trip it up.

Paul

disclaimer:  I'm not saying system 7 is rock solid, just that it works
for me.