Date: Thu, 18 Nov 2010 10:41:56 +0100 From: Thomas Exner <thomas.exner@uni-konstanz.de> To: freebsd-questions@freebsd.org Subject: disk recovery problem(s) Message-ID: <4CE4F4E4.10606@uni-konstanz.de>
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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.exner@uni-konstanz.de ________________________________________________________________________________
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