shriphani@psp-laptop:~$ cat /proc/partitions 
major minor  #blocks  name

   3     0   39070080 hda
   3     1   34178287 hda1
   3     2     120456 hda2
   3     3    3903795 hda3
   3     4     867510 hda4
   8     0       1440 sda
shriphani@psp-laptop:~$