btrfs scrub returned with uncorrectable errors. Searching in dmesg returns the following information: BTRFS warning (device dm-0): checksum error at logical NNNNN on /dev/mapper/[crypto] sector: yyyyy metadata node (level 2) in tree 250 it also says: unable to fixup (regular) error at logical NNNNNN on /dev/mapper/[crypto] I assume I have a bad block device. Does that seem correct? The important data is backed up. However, it would save me a lot of time reinstalling the operating system and setting up my work environment if I can copy this root filesystem to another storage device. Can I do that, considering the errors I have mentioned?? With the uncorrectable error being in a metadata node, what (if anything) does that imply about restoring from this drive? If I can copy this entire root filesystem, what is the best way to do it? The btrfs restore tool? cp? rsync? Some cloning tool? Other options? If I use the btrfs restore tool, should I use options x, m and S? In particular I wonder exactly what the S option does. If I leave S out, are all symlinks ignored? I'm trying to save time and clone this so that I get the operating system and all my tweaks / configurations back. As I said, the really important data is separately backed up. I appreciate all suggestions. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
