[Jfs-discussion] FS corrupt after kernel crash

[Geronimo M. H. <ger...@gm...>]

Hello,

after a system crash on a linux-box, the jfs-disk failed on fsck, so I got the 
freshest jfs-util and did a manual fsck:
-----------------------
$> fsck.jfs -nv --omit_journal_replay /dev/hdd1

fsck.jfs version 1.1.13, 17-Jul-2008
processing started: 9/13/2008 20.6.3
The current device is:  /dev/hdd1
Open(...READONLY...) returned rc = 0
Primary superblock is valid.
The type of file system for the device is JFS.
Block size in bytes:  4096
Filesystem size in blocks:  73258400
**Phase 1 - Check Blocks, Files/Directories, and  Directory Entries
ujfs_rw_diskblocks: read 0 of 16384 bytes at offset 73014460416
Unrecoverable error reading M from /dev/hdd1.  CANNOT CONTINUE.
Fatal error (-10015,30) accessing the filesystem (1,73014460416,16384,0).
processing terminated:  9/13/2008 20:06:19  with return code: -10015  exit 
code: 8.
-----------------------

The disk is a 300Gb drive having just one partition (entire space).
Kernel was Linux version 2.6.23.9
The fs had about 70% of space used.

Any hint, how I could recover some/most data?

kind regards

Geronimo