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Re: [LUG] Linux booting in less than 1.5 seconds

 

On Thu, 16 Jul 2009, Paul Hirst wrote:

> On Wed, 2009-07-15 at 11:06 +0100, Rob Beard wrote:
>
>> As far as I know (after watching the demo video) they use an
>> uncompressed kernel with only drivers which the hardware requires and
>> use DMA access to transfer the stuff into memory, I gather too that the
>> hardware is pretty limited due to it being designed for in-car use.
>
> I would have thought a gzip compressed kernel would make the most sense.
> They are bzip2 compressed by default aren't they? Which is pretty slow
> to decompress compared to gzip.
>
> Can you still do 'make zImage' rather than 'make bzImage'? I haven't
> compiled a kernel in a number of years now. The last one must have been
> the last Gentoo system I built.

I'll give it a try soon, but the current kernels now support LZMA 
compression which is supposed to be much faster to uncompress.

Gordon

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