During the checking of my BIOS to confirm that my machine has that ability, I noticed a minus sign in front of the USB HDD. Does this mean that the ability of the machine to boot from a USB HDD has been disabled?
I’ve seen this question asked twice (2004 and 2008) in this forum, and a couple of times in other forums, for a variety of Thinkpads. No one has provided an answer, so far. If you have an answer, you are the master of PC arcania! Thank you. Joe
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Tell us what kind of Thinkpad you have (the 7-character MTM model # on the bottom) and we could give you model-specific info. ... My guess, if the boot isn't working, it's possibly your flash drive image.
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The observation that the minus sign changes to a plus sign when a drive is hooked in is a very valuable clue. I appreciate the effort that you made.
Thank you, gentlemen! Joe
This evening I completed a BartPE setup using my OCZ flash / thumb drive. Once it was setup and my test boot was successfully completed, I restarted and went to my BIOS's boot device listing. Bingo! The USB HDD, which formerly had a minus sign in front of it, now has a plus sign in front of it. Mystery solved. Good job, Mr. Kawakami!rkawakami wrote: This has had me wondering too... so I booted my T41 and looked at the Boot menu. There are eight entries enabled, with "-USB HDD" being one of them. I shut down the system and attached my (free ) 320GB Seagate FreeAgent Go drive and re-booted. The boot menu entry now shows "+USB HDD", so my assumption is that the "-" means that no drive is/was detected and "+" means that a drive has been detected and available for booting.
Incidentally, my OCZ ATV Turbo 4GB USB 2.0 flash drive (part # OCZUSBATVT4G) takes me from my Thinkpad splash screen to my BartPE splash screen in 38 seconds. I don't know how that stacks up with other USB flash drives, but I'm sure comfortable with that speed.
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