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Hurrian	2011-12-10 , 10:31
Posts: 1,225 \| Thanked: 1,905 times \| Joined on Feb 2011 @ Quezon City, Philippines	#17

Originally Posted by pali

First stage boot loader is not Omap X-Loader. It is totally different bootloader (but only with similar name Nokia X-Loader). X-Loader is signed, so we cannot repleace it.

Second stage boot loader is NOLO (Nokia Omap Loader) which is not signed, so teoretically could be replaced. But U-Boot binary is too big (bigger then NOLO), so we cannot easily relplace it. And we do not have *working* U-Boot port for N900 (as second stage bootloader, which initialize HW) - only port which behave like linux kernel...

Thanks pali, didn't know that Nokia wrote their own x-loader.
I have an idea though, if u-boot can't be shoehorned into mtd1, why not put it on mtd4 (initfs?)
That should be enough space for a bootloader.

EDIT: I totally forgot that NOLO was completely neutered for the release of the N900, unable to select default boot device, etc, and mtd4 as wasted space.

New idea: move kernel out of mtd2, put u-boot there, stuff kernel in mtd4 (it should be about the same size, right?) Flasher will need to be patched, though.

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@kenweknot, working on Glacier for Nemo.

Last edited by Hurrian; 2011-12-10 at 10:36.

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