Enter single user mode
# init 1
Remount the partition as read-only
# remount -n -o remount,ro /dev/sda1
(replace /dev/sda1 by the name of the device which file system you want to
fix)
Check the partition for errors
# fsck -y /dev/sda1
Remove the journal
# tune2fs -O ^has_journal /dev/sda1
Remount the partition as read-write
# mount -n -o remount,rw /dev/sda1
Recreate the journal
# tune2fs -j /dev/sda1
Remount the partition as read-only
# remount -n -o remount,ro /dev/sda1
Check the file system (and have the journal inode block info backed up
# fsck -f /dev/sda1
Reboot the system
# reboot
