How to create Partition in Ubuntu

1. Create free space.
2. Select free space and click add partition. Allocate space you want to give the OS Say 30 gb. This is termed as boot partition. This will be primary partition.Set the boot loader to "/"
3. Select free space and again click add partition. Specify around 4 gb as swap space.
set swap as file system type.
4. Select free space and again click add partition. Set the file system as fat 32.
http://www.youtube.com/watch?v=A0d82mvYQjM