I usually use Dual boot with WinXP and UBUNTU 11.04, but few days ago,one colleague made a mistake by installing again Ubuntu 11.04 on same partition where already it was present.
And Before that I had updated the Ubuntu 11.04,but in new installation,I had to do again, as Prompted by the system.
And In Grub Boot Loader,The list of OS shows following: 1.Ubuntu 2.previous linux 3.winXp.
So, how can I clean up my ubuntu Disk space by removing Duplicates files from New ubuntu installation ,caused by previous linux installation.