[ltp] booting from sd card

[Hendrik-Jan Heins]

No, chain loading also doesn't seem to work.

For some reason it looks like the whole device is not being
initialised until after a complete system start.
I still think this is strange: how can it be that USB is actually
being initialised on boot, except for this port! How different is an
external card reader from the internal device? It alsmost seems like a
deliberate blocking.

best regards,

Hendrik-Jan


2008/11/25 Richard Neill <rn214@hermes.cam.ac.uk>:
>
>
> Hendrik-Jan Heins wrote:
>>
>> Hello,
>>
>> This topic has probably been raised more than once already, but I
>> think it's worth raising it again:
>> I own a Thinkpad X61s (T7300). It contains an internal sd card slot. I
>> also know 3 people with an X61s 7500.
>> We all tried to get a boot from an sd card in the card slot, but to no
>> avail. Even worse: when selecting a boot device from the boot list
>> (F12), it doesn't even show up as a bootable device.
>> When I plug the same sd card in an usb card reader and plug that in
>> the x61s, I can actually boot from it!!! So why isn't this working
>> from the internal usb device? It can't be too difficult, as even the
>> Asus Eee can do it.
>
> As far as I know, it's the same reason that you can't boot the X2 or X3
> series from the internal CF slot: i.e. the BIOS just doesn't support it.
> There's no good reason *why* it isn't supported; it just isn't.
>
> Can you chainload a bootloader on it by having grub on the hard disk?
>
> Richard
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