Comment 0 for bug 262294

I downloaded the 'live' CD images of the daily 32-bit and 64-bit Ubuntu Intrepid Ibex builds from August 23, 2008.
I burned the images to CD.
I tried using both CDs on my two home desktop computers which each had an Adaptec PCI SCSI controller installed.
Neither CD would boot up with an Adaptec PCI SCSI controller installed, but both computers would boot up with no error messages when there was no Adaptec PCI SCSI controller installed.
I assume this is a problem because Ubuntu does not tolerate the on-board BIOS on PCI SCSI controllers but I have no prior knowledge of Ubuntu (or linux in general).
I downloaded the 'live' CD images of the daily 32-bit and 64-bit Ubuntu Intrepid Ibex builds from August 26, 2008, with similar results.
The screens that result when booting up with an Adaptec PCI SCSI controller installed are as follows:
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---------------------
ECS GeForce6100PM-M2 v2.0 motherboard
(nVidia Geforce6100/nForce430)
http://www.ecsusa.com/ECSWebSite/Downloads/ProductsDetail_Download.aspx?detailid=857&DetailName=New&DetailDesc=&CategoryID=1&MenuID=6&LanID=9
AMD Athlon™ X2 Dual-Core 4200+ processor
Adaptec 29160N PCI SCSI controller
=============
error screen with 64-bit Ubuntu:

[0.004000]Aperture beyond 4GB. Ignoring
[0.004000]Your BIOS doesn't leave a aperture memory hole.
[0.004000]Please enable the IOMMU option in the BIOS setup.
[0.004000]This costs you 64MB of RAM.

Loading, please wait...

BusyBox v1.1.0.2 (Ubuntu 1:1.10.2-1ubuntu4)
built-in shell (ash)
Enter 'help' for a list of built-in commands.
(initramfs)(cursor)

Kernel alive
kernel direct mapping tables up to 120000000@8000-e000
============
error screen with 32-bit Ubuntu:

Loading, please wait...

BusyBox v1.1.0.2 (Ubuntu 1:1.10.2-1ubuntu4)
built-in shell (ash)
Enter 'help' for a list of built-in commands.
(initramfs)(cursor)

Kernel alive
kernel direct mapping tables up to 120000000@8000-e000
-------------------
-------------------
ECS 945GCT-M/13333 motherboard
http://www.ecsusa.com/ECSWebSite/Downloads/ProductsDetail_Download.aspx?detailid=830&DetailName=New&DetailDesc=&CategoryID=1&MenuID=6&LanID=9
Intel E2200 processor
Adaptec 29160 PCI SCSI controller
==============
error screen with 32-bit Ubuntu:

vertical white lines - no text
==============
error screen with 64-bit Ubuntu:

Loading, please wait...

BusyBox v1.1.0.2 (Ubuntu 1:1.10.2-1ubuntu4)
built-in shell (ash)
Enter 'help' for a list of built-in commands.
(initramfs)(cursor)

Kernel alive
kernel direct mapping tables up to 100000000@8000-d000