We have an old GFS 5.2.1 cluster which is running without problems since 2004. Unfortunally during a RAID-5 rebuild one of our filesystems was corrupted and cannot be mounted. We also tried to check it by gfs_fsck, but it cannot find the superblock. With the help of dd I dumped the first blocks of the device and compared it with a working filesystem. It seems that the filesystem information is only moved an not destroyed. So my questions is, how can I restore the superblock and maybe restore the whole filesystem ? m.schlett
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