here's the result of df -h on my linux box Filesystem Dimens. Usati Disp. Uso% Mounted on /dev/hda2 11G 1,6G 9,2G 15% / tmpfs 221M 0 221M 0% /lib/init/rw udev 10M 68K 10M 1% /dev tmpfs 221M 0 221M 0% /dev/shm the first line is the partition where I've installed linux, but the other three? please can you help me to understand what do those lines mean? thanks