root@OpenWrt:~# df
Filesystem           1k-blocks      Used Available Use% Mounted on
none                      6980        32      6948   0% /tmp
tmpfs                      512         0       512   0% /dev
mini_fo:/tmp/root          704       704         0 100% /tmp/root
/dev/mtdblock5             512       204       308  40% /jffs
mini_fo:/jffs              704       704         0 100% /