i need to know about Partition when install SUSE 11.1

i try to download Live cd SUSE 11.1 and install in same hard disk
with ubuntu .
i use ubuntu 9.04 . when i install SUSE in create Partition .
it 's has name of partition and file system to show. like this =
/dev/sda1 ext3 1.35 Gib
/dev/sda2 extended 73.18 Gib
/dev/sda5 ext3 67.66 Gib
/dev/sda… …

i want to know how i can choose for create partition ?
between extended and ext3 what that i can choose ?
i want to install SUSE and not to delete ubuntu partition and can boot to both OS. by not have problem how i can choose ?
what is the correct way to choose and create partition to install?
if possible please tell me by step .:slight_smile:

What would be better is if you boot the live cd and do a su terminal of:

fdisk -l

post here

ok i make new partition before install now i can install both os.
:wink: thank you.