[maemo-users] dual boot with 2007 from device and 2008 from MMC - possible?

From: Austin Che maemo at austinche.name
Date: Thu Nov 29 05:38:19 EET 2007
Frantisek Dufka <dufkaf at seznam.cz> wrote:

> Luckily 2.6.21 already has kexec for ARM merged so in theory and with 
> some tweaks (kexec for generic ARM does not mean it works on OMAP2) it 
> may be possible to boot older kernel from newer one without flashing via 
> kexec mechanism.

    I actually had been looking at back-porting kexec into the 2.6.18
    kernel. But I just recompiled 2.6.21 with kexec on and patched
    kexec-tools with arm patches and it does not work for me (the
    screen just goes blank and eventually the whole device
    reboots). kexec seems to be really quite simple (code-wise) and so
    I can't imagine it being that difficult to figure out for someone
    with a clue about omap.

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