I have a desktop computer with Ubuntu Desktop 14.04.4 LTS 64-bit with an attached HDD USB 3.0 4TB Intenso 1 partition ext4 data drive only (no OS or Apps). After a sudden power failure, I am unable to mount the drive (checked different host Linux machines with no result).
sudo mount /dev/sdd1 /mnt mount: wrong fs type, bad option, bad superblock on /dev/sdd1, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so
Tried with fsck, e2fsck with no result. The error message says "Get a newer version of e2fsck".
Tried with all available superblocks backups with no result.
Tried offline file/drive Linux checkers on the offline and UNmounted volume with no result.
Finally, I received the following error message for which I couldn't find any help online:
"has unsupported feature(s): metadata_csum". e2fsck 1.42.9 (4-Feb-2014) /dev/sdd1 has unsupported feature(s): metadata_csum e2fsck: Get a newer version of e2fsck!
Can anyone help me take my data back?