1. Use this guide or choose another guide from to make a bootable Ubuntu USB stick.
  2. Turn off your Aspire One, plug in the Ubuntu USB stick, turn on your Aspire One and press F12 to boot from USB.
  3. Select to boot in Live/Persistent mode. You don't want to install and owerwrite your current system.
  4. When Ubuntu is ready booting, select System > Administration > Partition Editor from the meny.
  5. A program called GParted will open. From here you can create new, extend, shrink, delete and format partitons on your HDD.
  • Changes you do to your partitions will not apply until you click on Apply. You can do many operations and apply them all on the same time when you're done.