====== Repair ext4 fs ======


<code bash>
sudo mke2fs -n /dev/sdb1
Superblock backups stored on blocks: 
	32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632
</code>


<code bash>
sudo e2fsck -b 32768 /dev/sdb1
</code>