Filesystem      Size  Used Avail Use% Mounted on
/dev/xvda1      7.9G  4.5G  3.1G  59% /
udev            1.9G  8.0K  1.9G   1% /dev
tmpfs           376M  176K  375M   1% /run
none            5.0M     0  5.0M   0% /run/lock
none            1.9G   12K  1.9G   1% /run/shm
/dev/xvdb       394G  199M  374G   1% /mnt