2016-07-29 01:53:54 dmsetup remove_all
2016-07-29 01:53:54 wipefs -a --force /dev/ram0
2016-07-29 01:53:54 mkfs -t btrfs /dev/ram0
2016-07-29 01:53:54 mount -t btrfs /dev/ram0 /fs/ram0