Re: Btrfs rescue images

From: Chris Mason
Date: Mon Jun 15 2009 - 21:02:24 EST

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


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