Filesystem      1K-blocks      Used  Available Use% Mounted on
udev              8036804         0    8036804   0% /dev
tmpfs             1612156      9564    1602592   1% /run
/dev/sda2      1905749916 520329892 1288590484  29% /
tmpfs             8060776       172    8060604   1% /dev/shm
tmpfs                5120         4       5116   1% /run/lock
tmpfs             8060776         0    8060776   0% /sys/fs/cgroup
/dev/sda1          523248      3540     519708   1% /boot/efi
tmpfs             1612156        64    1612092   1% /run/user/1000
/dev/sdb1         7845876   3517984    4327892  45% /media/chenlin/64E7-0465