Filesystem Type Size Used Avail Use% Mounted on devtmpfs devtmpfs 923M 0 923M 0% /dev tmpfs tmpfs 941M 0 941M 0% /dev/shm tmpfs tmpfs 377M 2.1M 375M 1% /run /dev/mmcblk1p3 btrfs 19G 17G 1.7G 91% / /dev/mmcblk1p4 ext4 7.9G 5.4G 2.1G 73% /mnt/XXXXXXXXXXXXXXXXXXXXXXXXXXX /dev/mmcblk1p2 ext4 976M 484M 426M 54% /boot /dev/mmcblk1p1 vfat 96M 67M 30M 70% /boot/efi tmpfs tmpfs 941M 48K 941M 1% /tmp tmpfs tmpfs 189M 144K 189M 1% /run/user/XXXX /dev/mmcblk2p1 btrfs 7.5G 4.4G 3.1G 59% /run/media/XXXXXXXXXXXXXXXX