Comment 10 for bug 288675

 Fix Ubuntu 8.10 Intrepid bug/288675 "no partitions listed in partition table"
http://ubuntuforums.org/showthread.php?p=6081365

That is an easy way to solve the problem:

1. plesae use the Alternative iso;

2. when partition, run shell, you can see /hd-media,
only need run as following:
# umount -l /hd-media
# exit

3. now you can see partition tab, good luck!!!