I have an aws ec2 instance that's been running Ubuntu 12.04 for a good long while.  It has attached to it an EBS volume formatted with xfs.    Today after a reboot, I'm unable to mount this volume.  After the reboot, it did not get automatically mounted as per /etc/fstab.   Trying to manually mount it as below, I get the following:mount -t auto /dev/xvdf /usr/local/mnt/mediamount: unknown filesystem type 'xfs'So it appears Ubuntu has forgotten about xfs...  Any hints or ideas as to what I can do to get this volume mounted would be really appreciated. 
Unable to mount XFS volume after reboot - unknown filesystem type 'xfs'
ubuntu;mount;xfs;ec2