[NCLUG] XFS, "Can't read superblock"

Chad Perrin perrin at apotheon.com
Wed Dec 6 11:36:23 MST 2006


On Tue, Dec 05, 2006 at 08:58:37PM -0300, jeff wrote:
> Warren Turkal wrote:
> >On Monday 04 December 2006 11:00, Chad Perrin wrote:
> >>My father uses a Linux box as a fileserver.  The partition on which he
> >>stores all the important data uses an XFS filesystem.  This weekend,
> >>that filesystem, which comprises one entire hard drive, stopped working.
> >
> >Well, can you dd the info off so that you can work with the copy and 
> >reduce risk of destroying the original?
> 
> You may want to try `ddrescue` instead of plain old `dd` as it does a 
> better job of reading when there are errors.

It's now in the middle of a ddrescue that has been running since
yesterday morning.  There are, apparently, many many errors on this
drive.  I'd like to know how the heck it got to this state without dear
ol' dad noticing.

-- 
CCD CopyWrite Chad Perrin [ http://ccd.apotheon.org ]
"The first rule of magic is simple. Don't waste your time waving your
hands and hopping when a rock or a club will do." - McCloctnick the Lucid



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