Filesystem                          Size  Used Avail Use% Mounted on
rootfs                               20G  8.2G   11G  44% /
udev                                1.9G  8.0K  1.9G   1% /dev
tmpfs                               751M  176K  750M   1% /run
/dev/disk/by-label/cloudimg-rootfs   20G  8.2G   11G  44% /
none                                5.0M     0  5.0M   0% /run/lock
none                                1.9G     0  1.9G   0% /run/shm
/dev/xvdb                           394G  199M  374G   1% /mnt