Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!elroy.jpl.nasa.gov!ncar!gatech!udel!mmdf
From: greg@viewlogic.com (Gregory Larkin)
Newsgroups: comp.os.minix
Subject: Desperate help needed with my hard disk
Message-ID: <45942@nigel.ee.udel.edu>
Date: 27 Feb 91 13:29:38 GMT
Sender: mmdf@ee.udel.edu
Lines: 31


[NOTE: This was originally rejected by the list server]

Hello,

Somehow, for the nth time, I have managed to trash the super block of
one of my hard disk partitions.  Is there any way I can restore the
super block?  This partition contains my entire source tree, and would
be very time consuming to replace.  "fsck -r /dev/hd6" reports "bad
magic number in super block - fatal".

Could the super block be trashed if the start sector is not even? I
remember seeing this as an incompatibility between 1.3 and 1.5.  The
super block somehow got trashed around the time when I first booted
minix 1.5 up from a shoelace diskette (i.e. loaded on the fly).

related question:  say I have 3 HD partitions mounted.  I log out. Is
	 	   it safe to reboot at this time, or must all
		   partitions be umounted first?

How can this problem be prevented forever??

Thanks,
--
Greg Larkin (ASIC Engineer)
Viewlogic Systems, Inc. (The CAE Company)
293 Boston Post Road West ____________________________________________
Marlboro, MA 01752        |"This is a fragile ball we are living on; |
508 480 0881 x321         |it's a miracle and we are destroying it.."|
Email: greg@Viewlogic.COM |Peter Garrett, Midnight Oil               |
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