On 06/24/2015 05:47 PM, jd1008 wrote:
Well, that is strange!!! It really says that BIOS is busted
and does not have the good sense to realize the drive is not
bootable - just as in the case of having an audio CD in the
CD drive, and it ignores the presenc of the audio CD and
moves on to the next item (USB drive), which is also not
bootable, and none of it's partitions are marked bootable.
That's not how BIOS booting works.
Each device in the boot order is searched for boot loader code. If code
is found, control is handed off, and that code is expected to boot the
system. There's no timeout, because BIOS is no longer in control of the
system.
The bootable flag isn't used by the BIOS at all. It's used by DOS boot
loaders to determine which partition to continue boot from.
Your USB drive appears to have boot code of *some* kind in the MBR. Your
BIOS isn't broken. Dell did not "f*** up". You just need to clear the
boot sector. You can do that with:
dd if=/dev/zero of=/dev/sdb bs=446 count=1
Standard disclaimers apply: Back up your data first. Double check the
command before following advice from some rando on the internet. etc.
I think that what I will resort to is unplugging the usb drive
for the first few seconds to let the BIOS select internal HD
and start the boot, then plugin in the USB drive.
Sometimes, I do need to boot from a USB drive.
You could do that, or you could change the boot order to boot HDD before
USB, and use F12 when you need to boot USB.
Otherwise, you can't do a remote reboot because you won't be there to
unplug the USB drive.
--
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