Dear all:
I have a very similar problem as Roland Smith almost two years ago. My
hard drive got corrupted (I do not really know why) and when running
fsck the first error message is "ROOT INODE UNALLOCATED" (the full
output of fsck is given below. I can then type "y" and it looks like
that fsck is doing something. But in phase 3, when it tries to reconnect
the inodes and put them in the lost+found directory, this directory
cannot be created. If I mount the file system, there is still no root
directory on the drive (no "." and ".." or anything else) and if I run
fsck again, the exact same error massages occur again. If I only perform
the "ALLOCATE?" and answer all the other questions with "no", I get a
"." and ".." in the root directory but nothing more. Running again fsck
destroys everything again. Does anyone have an idea why fsck is not able
to perform the recovery or why the changes are undone at one point? Is
there a chance to get the data back? I do not know if it is important
but the file system is on a raid5.
Any help would be highly appreciated.
Best,
Thomas
Full fsck output:
nas1:/mnt# /sbin/fsck -t ufs -f /dev/raid5/nasraid1p1
** /dev/raid5/nasraid1p1
** Last Mounted on /mnt/nasraid1
** Phase 1 - Check Blocks and Sizes
** Phase 2 - Check Pathnames
ROOT INODE UNALLOCATED
UNEXPECTED SOFT UPDATE INCONSISTENCY
ALLOCATE? [yn] y
BAD TYPE VALUE I=2 OWNER=root MODE=40755
SIZE=2048 MTIME=Nov 16 17:21 2010
DIR=/
UNEXPECTED SOFT UPDATE INCONSISTENCY
FIX? [yn] y
BAD TYPE VALUE I=2 OWNER=root MODE=40755
SIZE=2048 MTIME=Nov 16 17:21 2010
DIR=/
UNEXPECTED SOFT UPDATE INCONSISTENCY
FIX? [yn] y
BAD TYPE VALUE FOR '..' I=151745536 OWNER=root MODE=40755
SIZE=512 MTIME=Oct 19 17:19 2010
DIR=?
UNEXPECTED SOFT UPDATE INCONSISTENCY
FIX? [yn] y
BAD TYPE VALUE I=2 OWNER=root MODE=40755
SIZE=2048 MTIME=Nov 16 17:21 2010
DIR=
UNEXPECTED SOFT UPDATE INCONSISTENCY
FIX? [yn] y
BAD TYPE VALUE FOR '..' I=301465600 OWNER=root MODE=40755
SIZE=19968 MTIME=Nov 12 09:16 2010
DIR=?
UNEXPECTED SOFT UPDATE INCONSISTENCY
FIX? [yn] y
BAD TYPE VALUE I=2 OWNER=root MODE=40755
SIZE=2048 MTIME=Nov 16 17:21 2010
DIR=
UNEXPECTED SOFT UPDATE INCONSISTENCY
FIX? [yn] y
** Phase 3 - Check Connectivity
UNREF DIR I=151745536 OWNER=root MODE=40755
SIZE=512 MTIME=Oct 19 17:19 2010
RECONNECT? [yn] y
NO lost+found DIRECTORY
CREATE? [yn] y
SORRY. CANNOT CREATE lost+found DIRECTORY
UNEXPECTED SOFT UPDATE INCONSISTENCY
UNREF DIR I=301465600 OWNER=root MODE=40755
SIZE=19968 MTIME=Nov 12 09:16 2010
RECONNECT? [yn] y
NO lost+found DIRECTORY
CREATE? [yn] y
SORRY. CANNOT CREATE lost+found DIRECTORY
UNEXPECTED SOFT UPDATE INCONSISTENCY
UNREF DIR I=151745536 OWNER=root MODE=40755
SIZE=512 MTIME=Oct 19 17:19 2010
RECONNECT? [yn] y
NO lost+found DIRECTORY
CREATE? [yn] y
SORRY. CANNOT CREATE lost+found DIRECTORY
UNEXPECTED SOFT UPDATE INCONSISTENCY
** Phase 4 - Check Reference Counts
** Phase 5 - Check Cyl groups
SUMMARY INFORMATION BAD
SALVAGE? [yn] y
BLK(S) MISSING IN BIT MAPS
SALVAGE? [yn] y
35257960 files, 1247115068 used, 171932417 free (5559497 frags, 20796615
blocks, 0.4% fragmentation)
***** FILE SYSTEM MARKED CLEAN *****
***** FILE SYSTEM WAS MODIFIED *****
--
________________________________________________________________________________
Dr. Thomas E. Exner
Juniorprofessur "Theoretische Chemische Dynamik"
Fachbereich Chemie
Universität Konstanz
78457 Konstanz
Tel.: +49-(0)7531-882015
Fax: +49-(0)7531-883587
Email: thomas.ex...@uni-konstanz.de
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