[Arm-netbook] Booting from SD card with switch on so-dimm in other direction ...

[Frans Pop]

On Tuesday 23 March 2010, Luke Kenneth Casson Leighton wrote:
> > OK - my curiousity was suitably piqued by this, so I've created the
> > 2GB SD card from the mmcblk0, I've rebooted my system with the mouse
> > buttons pressed down at the same time as the power button.

If that SO-DIMM switch is set then holding the buttons should probably not 
be needed to get a boot of the SD card.

On the other hand, as the u-boot on the SD card is identical to the one on 
the Nand, I would still expect it to try and do the "firmware upgrade" 
thing.

> > I get no SD message, neither blue nor red. If I continue to press and
> > hold, the logo flickers, then the green bar starts, and then it powers
> > off (presumably because I have the power button pressed). If I let go
> > of the buttons when the green bar appears, (it is about 1/3 of the way
> > along the 'track') then the boot process completes and I can log in.
> > The mounted filesystem is definitely on the NAND as I can create a
> > file beforehand in a 'normal' boot, and it's present after this
> > partial power+button boot. I would surmise that your likely sequence
> > of events is correct.

Maybe I'm missing something here, but what exactly in your description 
proves that it booted from the SD card instead of the Nand?

Or was this on the netbook that was previously dead?

Are we really 100% certain that the conclusions are correct?

Cheers,
FJP