> There is no fsck function available, and I failed to copy the > image and reinstall to a reformated partition- as explained > below. The traditional recovery technique is to mount an earlier checkpoint, and then to make it by turning it into a snapshot. Something like: lscp /dev/sdb2 | less mount -t nilfs -o ro,nogc,norecvovery,cp=... /dev/sdb2 /mnt/sdb2 chcp ss /dev/sdb2 ... It is quite important to specify 'nogc' to make sure that earlier possibly "good" checkpoints are not deleted by the cleaner daemon. > Can someone please suggest how to recover the data? > [ ... ] > [ 3527.536887] print_req_error: I/O error, dev sdb, sector 3820642528 Well, the disk has hardware issues (around the end, that sector is about 1.8TiB from the beginning), and the easiest thing would be to restore from backup onto a new disk. Investigasting the extent of disk damage with 'smartctl -x /dev/sdb | less' might be useful, as well as any other standard disk damage investigation and mitigation technique. Then you can use 'ddrescue' to image the block device onto a new known-good block device and then mount a checkpoint from that. -- To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
