# uname -a
Linux CRACKBOX 3.13.0-61-generic #100-Ubuntu SMP Wed Jul 29 11:21:34 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
# blkid
/dev/sda1: UUID="ff09df8d-1437-4056-828c-c2e6c665e418" TYPE="ext4" 
/dev/sda5: UUID="73fa55d6-bb5d-4ff3-b2b6-d6b71c4e4e4e" TYPE="swap" 
/dev/sdb1: UUID="38cc5f02-d4ba-418e-bf54-1158c0f74c99" TYPE="ext4" 
/dev/sdb5: UUID="6d5ab046-3af3-492d-9a3a-5374a2655b86" TYPE="ext4" 
/dev/sdb6: UUID="14a2f914-4371-44d2-ab78-d522b930e135" TYPE="swap" 
# /dev/sda is the bad drive, /dev/sda1 is the bad partition
# fsck /dev/sda1
fsck from util-linux 2.20.1
e2fsck 1.42.9 (4-Feb-2014)
/dev/sda1 has unsupported feature(s): FEATURE_I13
e2fsck: Get a newer version of e2fsck!
# apt-get install e2fsck
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package e2fsck
# emerge e2fsprogs
No command 'emerge' found, did you mean:
 Command 'vemerge' from package 'util-vserver' (universe)
 Command 'esmerge' from package 'tstools' (universe)
 Command 'fmerge' from package 'fhist' (universe)
 Command 'merge' from package 'rcs' (universe)
emerge: command not found
# fsck.ext4 /dev/sda1
e2fsck 1.42.9 (4-Feb-2014)
/dev/sda1 has unsupported feature(s): FEATURE_I13
e2fsck: Get a newer version of e2fsck!