Problem solved. I could restore the superblock using: dd if=<disk> skip=32 of=<disk> seek=16 bs=512 count=16 Thx to http://groups.google.de/groups?selm=Pine.BSF.4.21.0212150052530.41793-100000_root.org%40ns.sol.net&oe=UTF-8&output=gplain Cheers, Tom