macbook-pro-de-thomas:~ thomasmanen$ diskutil list
/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *500.1 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_HFS Machintosh HD 499.2 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
/dev/disk1 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *500.1 GB disk1
1: EFI EFI 209.7 MB disk1s1
2: Apple_HFS My Passport Air 491.0 GB disk1s2
3: Apple_HFS Installer Lion 8.6 GB disk1s3
macbook-pro-de-thomas:~ thomasmanen$ df -H
Filesystem Size Used Avail Capacity iused ifree %iused Mounted on
/dev/disk0s2 499G 484G 15G 98% 118263027 3623715 97% /
devfs 191k 191k 0B 100% 648 0 100% /dev
localhost:/r8hc5D3XqZImq3crw_U_9h 499G 499G 0B 100% 0 0 100% /Volumes/MobileBackups
map -hosts 0B 0B 0B 100% 0 0 100% /net
map auto_home 0B 0B 0B 100% 0 0 100% /home
/dev/disk1s3 8.6G 4.8G 3.8G 56% 1165878 932776 56% /Volumes/Installer Lion
/dev/disk1s2 491G 137G 354G 28% 33341890 86531154 28% /Volumes/My Passport Air
macbook-pro-de-thomas:~ thomasmanen$