Re: second-stage bootloader for Thecus N2100?
On Sat, Jan 31, 2009, Paul Jakma wrote:
> - have a fallback option (though, this would require modifying some
> state shared between loader and booted environment which, ideally,
> would be in NVRAM - is that possible with redboot?)
Not sure what you mean here; if your kernel panics, it just sits here
and doesn't give back control to the boot loader or previous kernel
AFAIK; I don't know whether you can get control back in the kexec case,
but I suspect not in all cases.
>> https://lists.ubuntu.com/archives/ubuntu-devel/2009-January/027229.html
>> https://wiki.ubuntu.com/Specs/ARMSoftbootLoader
>
> Why build a new environment? Why not use the standard Debian initram?
> What modifications are needed other than to go down a 'read and offer
> boot menu and kexec' path instead of flipping to the root dev?
The initramfs idea came later, and we also explored that a little as I
mentionned (Oliver's script); kboot and petitboot were existing
implementations, petitboot for instance has a graphical menu. But in
end, kboot doesn't seem too active and petitboot was a bit too PS3
specific IIRC (but probably decent).
--
Loïc Minier
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