I have an ec2 instance that is booted from an ebs snapshot. The boot device is /dev/sda1. When I call mount, df -h or cat /etc/fstab I can see the device: $ mount /dev/sda1 on / type ext3 (rw) $ df -h Filesystem Size Used Avail Use% Mounted on /dev/sda1 50G 20G 28G 43% /Read more