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SubjectRe: [PATCH 2/2] lzma support: lzma compressed kernel image
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Christian Leber wrote:
> On Mon, Jun 13, 2005 at 08:10:25PM -0600, Frank Sorenson wrote:
>>patches appear to work as advertised.
>
> I don't like the moving of the initrd, but i don't know another way to
> get it working otherwise.
>
>>lzma reduced my kernel by
>>approximately 25%, so I'd say it looks promising.
>
> 25%? i would have expected a smaller saving

- -rw-r--r-- 1 root root 2959194 Jun 12 14:28 vmlinuz-2.6.12-rc6-fs1
- -rw-r--r-- 1 root root 2192674 Jun 13 21:47 vmlinuz-2.6.12-rc6-fs2

> How to obtain should be enough, i'll add it.

Great, thanks.

>>- - Detect that the lzma application isn't present, and fall back to gzip
>>(with a warning) if lzma fails.
>
> No.
> If you select lzma you have to have it, you also don't download a
> compiler when somebody tries to compile the kernel without a compiler.

Uhm, no, I wasn't saying that. Just suggesting a simple failsafe. It's not important.

>>- - If we can embed the decompressor into the boot-time kernel, can't we
>>put a compressor into the kernel source, and avoid the need for the
>>external program?
>
> How do think will people react to a hundreds of kb sized C++ patch that
> is not - i repeat - NOT in proper coding style?

I wasn't suggesting that we include the entire source code as-is. Just that if we can include the decompressor in < 45K of code, surely the compression could be included easily. Again, it's not very important. Giving enough information to build and run is most important.

Frank
- --
Frank Sorenson - KD7TZK
Systems Manager, Computer Science Department
Brigham Young University
frank@tuxrocks.com
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