Gusty tribe 3 Installer didn't show existing partitions on harddrive

Did you install finally?
If not, copying the output of 'sudo fdisk -l' here would help.
Maybe with annotation about filesystems on these if you know.

For me, LiveCD installer of Tribe 3-Ubuntu x86 does show all my partitions fine.

Disk /dev/sda: 137.4 GB, 137438952960 bytes
255 heads, 63 sectors/track, 16709 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sda1 1706 4255 20482875 83 Linux
/dev/sda2 * 1 1705 13695381 c W95 FAT32 (LBA)
/dev/sda3 4256 4498 1951897+ 82 Linux swap / Solaris
/dev/sda4 4499 19457 120158167+ 5 Extended
/dev/sda5 5774 19457 109916730 83 Linux
/dev/sda6 4499 5773 10241374+ 83 Linux

sda1, sda5 and sda6 are ext3 partitions and sda2 is a fat32 partition.
I couldn't install it but i installed feisty and then i changed the source.list to gutsy.
The update from feisty to gutsy worked and all partitions were there.

Could you retry Tribe 3 Live CD installer and go on until after manual partitioning.
Note if your partitions are still not showing.
Then just cancel and attach the following files to this bug:
/var/log/syslog
/var/log/partman

BTW Tribe 4 should be going out tomorrow, so you may want to test that also.

Thank you for giving these new information so fast!

Note to ubiquity developer:
In syslog there is a lot of messages like:
Aug 8 18:50:53 ubuntu kernel: [ 4.908000] attempt to access beyond end of device
Aug 8 18:50:53 ubuntu kernel: [ 4.908000] sda: rw=0, want=312576465, limit=268435455

Setting this bug to Confirmed now, as there seems enough info to let a developer begin to investigate.
Also removing myself as assignee, because my job as a bug triager is finished.

 Thank you for taking the time to report this bug and helping to make Ubuntu better. You reported this bug a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue for you. Can you try with the latest Ubuntu release? Thanks in advance.

This bug is still marked as Incomplete so we are now going to close this bug report. Please upgrade to the latest release Karmic 9.10 - If this bug is still reproducible please reopen the bug by setting the status to New. Thanks