btrfs-image: unrecognized option '--version' usage: btrfs-image [options] source target -r restore metadump image -c value compression level (0 ~ 9) -t value number of threads (1 ~ 32) -o don't mess with the chunk tree when restoring -s sanitize file names, use once to just use garbage, use twice if you want crc collisions -w walk all trees instead of using extent tree, do this if your extent tree is broken -m restore for multiple devices In the dump mode, source is the btrfs device and target is the output file (use '-' for stdout). In the restore mode, source is the dumped image and target is the btrfs device/file.

usage: btrfs-image [options] source target -r restore metadump image -c value compression level (0 ~ 9) -t value number of threads (1 ~ 32) -o don't mess with the chunk tree when restoring -s sanitize file names, use once to just use garbage, use twice if you want crc collisions -w walk all trees instead of using extent tree, do this if your extent tree is broken -m restore for multiple devices In the dump mode, source is the btrfs device and target is the output file (use '-' for stdout). In the restore mode, source is the dumped image and target is the btrfs device/file.