How to create a new initrd

[Philip.R.Schaffner at NASA.gov (Phil Schaffner)]

Manuel Wolfshant wrote on 01/15/2011 07:59 PM:
> I took advantage of you invitation to complete/correct the page and 
> fixed a minor typo + added a reference to the xenblk module

Thanks.  Instructions on adding other modules would be good to add too, 
when someone gets a "Round Tuit".

Phil