bootloaders and USB

Smartboy smartboyathome at gmail.com
Mon Jun 28 06:51:48 PDT 2010


On Mon, Jun 28, 2010 at 5:12 AM, Andrew Benton <b3nton at gmail.com> wrote:
> On 28/06/10 00:35, Eric Miller wrote:
>> do most of the standard bootloaders (grub/,lilo, etc) have the ability
>> to boot to usb even when the BIOS doesn't natively support boot to usb
>> or floppy emulation?
>>
> I don't think so. I don't know about lilo. I don't think that grub has
> the drivers to do hardware probing. I think it just takes whatever the
> BIOS tells it and can't "see" anything else.
> If you can make a small partition on your hard drive (or some other
> device that the BIOS can "see") you can put the grub files and the
> kernel on that. Then grub can boot the kernel and the kernel (if you've
> compiled in all the correct drivers) should be able to mount a partition
> on the usb as it's root partition.
>
> Andy
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Another way could be to make a small LVM partition which then is
shared with the other hard drive. Then, boot should be able to boot
the USB partition without actual support for USB (I say should
because, in theory, this works, but I haven't tested it).



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