How to boot from USB on Sony Vaio PCG-TR3S?

Question

I have an old Sony Vaio PCG-TR3S that isn't running very well any more. It crashes a lot.

I heard of Chromium OS Vanilla and decided to try running that on my old laptop by booting from a USB stick, but unfortunately it doesn't have USB as a boot option in BIOS.

Is there a way that I can get the laptop to boot from USB?

Solution

Turns out the Plop Boot Mananger does what I need. I was able to create a bootable CD with Plop Boot Manager installed. When it runs, it prompts me which device to boot from, which includes USB.

Comments

[GiddyUpHorsey]

So even though I was able to boot from USB, turns out Chromium won't run on my laptop. It needs PAE instruction support which isn't included on the old Pentium M CPU. I was able to use xPUD instead, which seems to be a nice reliable minimal OS which I can put on a small USB flash drive.

[user541686]

There's too many people in this conversation, I'm confused...