I am going on vacation and I am taking my corporate Win7 laptop along. To keep personal and private data separate, I'd like to have two OS installs, but I don't want to dual-boot from the laptop HDD. So I intend to install Ubuntu on an external HDD and boot from there.
I was on Amazon shopping for an external HDD specifically for this purpose, when a user comment caught my eye. The user claimed that the HDD I am looking at is not bootable, as it has two disks internally and this configuration is readable by modern OSs (thus making a good storage medium), but not by the typical BIOS. He claimed that he has tested the 120 GB version of the same HDD and it would boot without problems, because it is a single-disk, but the 250 GB one won't.
Is this true? Can you boot from a two-disk HDD or not? And if not, how do I recognize whether a given HDD is a two-disk or single-disk type? (No it isn't in the data sheet, I looked there :( )