Date: Thu, 07 Jun 2001 23:08:55 -0600 From: Chris Fedde <chris@fedde.littleton.co.us> To: Randy Primeaux <randy@verbose.org> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: softupdates crash -> data recovery ? Message-ID: <200106080508.f5858ti27124@fedde.littleton.co.us> In-Reply-To: <200106080010.f580ACx53402@mute.Verbose.ORG>
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On Thu, 07 Jun 2001 17:10:12 -0700 Randy Primeaux wrote:
+------------------
| How might I go about recovering data from a disk after softupdates
| crashed?
|
| Shortly after enabling softupdates on /usr, I had a system freeze
| (back in January), and upon boot the next day, found:
|
| /dev/ad4s1f: CANNOT READ: BLK 16
| /dev/ad4s1f: NOT LABELED AS A BSD FILE SYSTEM (unused)
|
| /dev/ad4s1f is /usr including /usr/home
| Disk is an IBM DTLA 307030.
+------------------
That is scary. Still I doubt that it was softupdates that caused the
problem. Softupdates does not chage the disk label. It changes
some flags in the file system superblock. I suspect that what you
realy have is a drive failure. It is time to get a new drive and restore
from your dumps You do have file system dumps don't you?
If you want to try recovering the disk you might try the following.
Using /stand/sysinstall see if you can re-label the failed drive
If that succeeds then try to fsck the drive
If that succeeds then try to mount it
if that succeeds make a back up and recover it to a new drive.
Good Luck
--
Chris Fedde
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