root@OpenWrt:/# df -h
Filesystem                Size      Used Available Use% Mounted on
none                     14.7M     24.0k     14.7M   0% /tmp
tmpfs                   512.0k         0    512.0k   0% /dev
/dev/mtdblock3            2.1M    196.0k      1.9M   9% /jffs
/jffs                   960.0k    960.0k         0 100% /
root@OpenWrt:/#