ubuntu@ip-172-31-33-138:~$ sudo dumpe2fs -h /dev/xvda1 | grep ^Errors
dumpe2fs 1.44.1 (24-Mar-2018)
Errors behavior:          Continue
 
ubuntu@ip-172-31-33-138:~$ sudo tune2fs /dev/xvda1 -e remount-ro
tune2fs 1.44.1 (24-Mar-2018)
Setting error behavior to 2
