Possible corrupt disklabel and more
Robert Watson
rwatson at freebsd.org
Tue Feb 24 20:17:52 PST 2004
On Mon, 23 Feb 2004, ravi pina wrote:
> On Mon, Feb 23, 2004 at 10:30:44PM +0300, Maxim Konovalov said at one point in time:
> > On Mon, 23 Feb 2004, 14:21-0500, Jim Rees wrote:
> >
> > > I've often wished I had a tool that searches a raw disk for superblocks then
> > > suggests a possible disklabel. Surely someone has already written this?
> >
> > Sure. We have one in our src tree: src/tools/tools/find-sb.
>
> which version? i didn't see it in my 4.8 tree.
If you're running 4.x, try:
http://www.watson.org/~robert/freebsd/scan_ffs_freebsd4/
That's a port of the OpenBSD tool. There was a version adapted for UFS2
floating around somewhere also, but if you're running 4.x that's not an
issue. It has a mode that spits out the disklabel -- make sure to run it
on the disk slice so you get offsets relative to the slice.
Robert N M Watson FreeBSD Core Team, TrustedBSD Projects
robert at fledge.watson.org Senior Research Scientist, McAfee Research
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