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To: freebsd-questions@freebsd.org, Robert Neumann <shritis@gmx.de>
References: <3FBDE082.9020002@gmx.de>
From: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org>
Date: 21 Nov 2003 17:55:05 -0500
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Subject: [doc pointer] Re: HD error: BAD SUPER BLOCK
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Robert Neumann <shritis@gmx.de> writes:

> this is the problem:
> I had a machine running FreeBSD 4.7-Stable. There I added a 80GB
> harddisk. This harddrive I wanted to install on my other machine
> running FreeBSD 4.9-Release. This disk is ad6 so I added
> 
> 	/dev/ad6	/storage	ufs	rw	2	2
> 
> to fstab and rebooted.
> 
> While booting the kernel the following error came up:
> 	...
> 	/dev/ad6: BAD SUPER BLOCK: MAGIC NUMBER WRONG
> 	/dev/ad6: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY

Well, yes.  You have to put a filesystem on the disk.  

See the disk formatting tutorial article.
http://www.freebsd.org/doc/en_US.ISO8859-1/articles/formatting-media/