[ubuntu-uk] creating a USB startup disk

[David King]

I created a USB startup disk successfully, using Ubuntu 8.10 AMD64 CD 
ISO and a 16 GB flash drive.

But my PC will not boot from it. I tried 4 different options for the 
first boot device: USB-FDD, USB-ZIP, USB-CDROM, USB-HDD. None allowed it 
to boot. All that happened was that it got as far as "Verifying DMI pool 
data..." message, and then froze. So it seems that it is reading the USB 
flash drive, but it will not boot from it.

What could be wrong?