ubuntu@ubuntu:~$ sudo parted /dev/sda
GNU Parted 1.7.1
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print                                                            

Disk /dev/sda: 80.0GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number  Start   End     Size    File system  Name     Flags  
 1      20.5kB  210MB   210MB   fat32        primary  msftres
 2      210MB   64.6GB  64.4GB  hfs+         primary         
 3      64.6GB  79.0GB  14.3GB  ext3         primary  boot   
 4      79.0GB  80.0GB  1073MB  linux-swap   primary