Select your language.
Select your keyboard layout.
Select manual partitioning.
This is the tricky part, basically you will need to set a root partition for the system to be installed in. So we are going to partition /dev/sda1 and make it our root. Click on /dev/sda1 and then delete whatever partitions under it. Then click on new and in filesystem choose ext2 (we are not going to use ext3 because we want to limit writes due to the solid state disk nature of the Eee PC). Also set mount point to “/” (without the quotes).
If you have an SDHC card click on it and edit the mount point to “/media/*whatever*”. If you have nothing interesting in that card you might want to just delete whatever partitions and make a new partition, and choosing the filesystem as “fat32″. Since you never know when you might want to use it on Windows machine ;).
Enter your details. Name, user name, password, and machine name. Click next.
You will be prompted with a warning that all your data will be wiped out, click OK. Now sit back and relax, your system will be ready in 30 minutes or so.
Thats it! Now just click restart system when prompted, you will then asked to eject CD.
Now your golden :)
A lot of functionality will be missing with this out of the box Ubuntu installation. For example your wireless won’t function. Visit my Perfect Eee PC Ubuntu Installation Guide for a complete guide on how to get things up and running.