linux-ext4 - ext4 - error with root drive mount

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Date:	Tue, 3 Feb 2009 19:15:31 -0500
From:	Jimmy Rentz <jedynamic@...lsouth.net>
To:	linux-ext4@...r.kernel.org
Subject: ext4 - error with root drive mount

Hello,
	I am unable to mount my ext4 root drive. 

	I get this error:
	EXT4-fs: ext4_check_descriptors: Block bitmap for group 2688
	not in group (block 4205711663)!<3>EXT4-fs: group descriptors
	corrupted!

	I had a similar error some time ago, but I thought it was power
	related.  I fixed the problem by running a fcsk.  
	I have since purchased a ups so I can at least rule that out.
	Also, after I fixed the error I never saw any ata errors or
	kernel oops in dmesg.

	I am running Fedora 10 with kernel
	2.6.27.12-170.2.5.fc10.x86_64.
	Root drive is on a lvm. 
	The physical disk is a 1.5 T.B Seagate (non-affected bad
	firmware drive).

	Any tips to debug this?

Jimmy Rentz
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