[Nix-dev] Re: [Nix-commits] SVN commit: nix - r23483 - in nix/branches/sqlite: scripts src/libstore src/libutil

[Lluís Batlle i Rossell]

On Fri, Aug 27, 2010 at 01:18:13PM +0000, Eelco Dolstra wrote:
> Author: eelco
> Date: Fri Aug 27 13:18:13 2010
> New Revision: 23483
> URL: https://svn.nixos.org/websvn/nix/?rev=23483&sc=1
> 
> Log:
> * Experimental feature: allow a derivation to tell the build hook that
>   it requires a certain feature on the build machine, e.g.
> 
>     requiredSystemFeatures = [ "kvm" ];
> 
>   We need this in Hydra to make sure that builds that require KVM
>   support are forwarded to machines that have KVM support.  Probably
>   this should also be enforced for local builds.

Could that be the path to request, for example, 'root' access in a build?

I think of the case where a nix derivation has to create an image (squashfs,
ubifs, ...) with devices, and only 'root' can run 'mknod'.

Regards,
Lluís.