Filesystem Size Used Avail Use% Mounted on tmpfs 3.9G 76K 3.9G 1% /.flatpak-info /dev/sda3 917G 49G 869G 6% /usr tmpfs 3.9G 0 3.9G 0% /usr/lib/x86_64-linux-gnu/GL tmpfs 3.9G 0 3.9G 0% /usr/share/runtime/share/icons tmpfs 786M 68K 785M 1% /run/host/monitor devtmpfs 3.9G 0 3.9G 0% /dev tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs 3.9G 1.6M 3.9G 1% /run/media tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup tmpfs 3.9G 0 3.9G 0% /sysroot/home/XXX tmpfs 3.9G 0 3.9G 0% /sysroot/home/XXX tmpfs 3.9G 0 3.9G 0% /tmp/.X11-unix