[Nix-dev] kmod: gzip/xz support

[Shea Levy]

On 03/27/2012 01:12 PM, Yury G. Kudryashov wrote:
> Hi!
>
> Currently kmod binary links both to libz and liblzma. This means that these
> libraries have to be added to the initrd (I already use kmod instead of
> module-init-tools).
>
> On the other hand, our kernel package does not compress modules. I think
> that we should
> * either drop gzip/xz in kmod,
> * or compress kernel modules.
>
> Which one do you prefer?

Any chance you can try both and see the size difference? That is, how 
much does compressed modules save on the system vs how much do libz and 
liblzma add to the initrd? Also regardless of the answer we probably 
don't need both libz and liblzma.

Probably the best answer is to abstract some of this stuff into nixos 
config options (compressModules, compressionType) and, depending on how 
hard it would be to build kmod locally, have hydra build kmod three ways 
(no compression, libz, and liblzma).