Date: Mon, 15 Jun 2009 21:02:01 -0400
From: Chris Mason <chris.mason@oracle.com>
To: linux-kernel@vger.kernel.org, linux-btrfs@vger.kernel.org,
       Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: Btrfs rescue images
Message-ID: <20090616010201.GC3735@think>
Mail-Followup-To: Chris Mason <chris.mason@oracle.com>,
	linux-kernel@vger.kernel.org, linux-btrfs@vger.kernel.org,
	Linus Torvalds <torvalds@linux-foundation.org>
References: <20090616005319.GA3735@think>
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On Mon, Jun 15, 2009 at 08:53:19PM -0400, Chris Mason wrote:
> Hello everyone,
> 
> As Linus discovered, the new btrfs disk format in 2.6.31-git can be
> problematic if your FS gets forward rolled to the new format and you end
> up bisecting back to the old code.
> 
> It would also be nice to have a way to run btrfsck on a root filesystem
> and do other assorted tasks.  So, I'm making live boot usb images for
> both x86 and x86-64.
> 
> They should have enough to get your filesystems mounted and they also
> include git, gcc, make and enough to compile the kernel.  These are
> based on the Arch 2.6.30 distro with just the btrfs newformat code
> added.
> 
> I've got the 32 bit image uploaded, and I'll queue up 64 bit overnight.
> If anyone is feeling brave, just dd the image onto a usb stick and
> rescue boot away.
> 
> They work on both of my test boxes, but a little extra testing would be
> nice.

Well, I had the link in my paste buffer, but it helps to actually paste
it.

http://www.kernel.org/pub/linux/kernel/people/mason/btrfs-boot-images/

-chris

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