Syslinux - Aug 2013 - Kernel selection by hardware?

H. Peter Anvin <hpa at zytor.com> wrote:
> Are you network booting, or booting from media?
It would be easy to do with pxeboot, but it's an USB flash drive I'm
talking about.

Sven

-- 
"Software is like sex; it's better when it's free"
	                              (Linus Torvalds)

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Am 01.08.2013 19:19, schrieb Sven Geggus:
> H. Peter Anvin <hpa at zytor.com> wrote:
>
>> Are you network booting, or booting from media?
> It would be easy to do with pxeboot, but it's an USB flash drive
I'm
> talking about.

I once ran into a quite similar problem, but solved it with a simple 
kernel that ran on every machine and some initramfs magic with a 
statically compiled kexec contained in intramfs that loaded the special 
kernel (in this case via network) and kexec'd it. This should work for 
your problem as well. If you already built kernels for every macine, it 
should be OK to modify some 20 lines of shell code for the initramfs. 
But now it's getting off the topic of this list, contact me on other 
channels if you need more information.

Regards,
Mattias




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Mattias Schlenker <ms at mattiasschlenker.de> wrote:
> I once ran into a quite similar problem, but solved it with a simple 
> kernel that ran on every machine and some initramfs magic with a 
> statically compiled kexec contained in intramfs that loaded the special 
> kernel (in this case via network) and kexec'd it.
The Problem with this aproach is, that I would need to be able to somehow
pass the encryption key of the root filesystem to the kexec'd kernel, which
I didn't manage to do yet. Passing it via commandline options would make it
visible via /proc/commandline and probably not a good Idea.

Sven

-- 
"Das Einzige wovor wir Angst haben m?ssen ist die Angst selbst"
						(Franklin D. Roosevelt)

/me is giggls at ircnet, http://sven.gegg.us/ on the Web