Fix /dev/xvda1 should be checked for errors on Amazon EC2 Ubuntu Instances

Tired of this message popping up every time you SSH into an Amazon instance?


"/dev/xvda1 should be checked for errors"


And none of the “fixes” seem to work? Turns out you have to do a combination of things. SSH into the cloud and follow along.

sudo nano /etc/fstab


There should be a line describing the root (/) filesystem. Change the very last digit from a “0” to a “1”. Ctrl-O to save and Ctrl-X to exit.


sudo nano /etc/default/rcS


Near the bottom, look for the line:




And change it to:




Ctrl-O and Ctrl-X again. Finally, trigger the file check at next reboot.


sudo touch /forcefsck


And reboot.


sudo reboot


Within a few seconds the instance should be back up. To conserve boot time and resources, revert the above changes to /etc/fstab and /etc/default/rcS and it should be good to go! No bothersome error message, and a solid file system.


  1. I have a swapfile allocated. It shows up in the fstab listing and needed a 1 to replace the 0 in the last item in the line. Did that and all the errors went away. Thanks.

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