boot from external usb harddisk
I'm a little puzzled. I have a Toshiba usb harddisk wit Ubuntu 8.10. When I plug it into my Dell laptop, it boots Ubuntu from the Toshiba harddisk.
When I plug the same HD into my desktop, it doesn't boot from the external HD. But when I plug an old USB stick with DSL into the same desktop, it boots from the USB stick.
- the HD is bootable, otherwise the laptop wouldn't boot from it
- the desktop can boot from USB, otherwise it wouldn't boot from the USB stick
What could be wrong? How do I get the desktop to boot from the HD?