Peter's "content" contribution 1

It is not Kernel code yet, but I liked it.

I added some lines to Fedora Wiki on Building Custom Kernel:
http://fedoraproject.org/wiki/Docs/CustomKernel#Building_a_Kernel_from_the_source_RPM

As I do not know about how many time this content will be available on the site, I took a screenshot of it. :-)

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