[Yum] header.info format?

Christopher J. Bottaro cjbottaro at alumni.cs.utexas.edu
Wed Sep 22 23:16:14 UTC 2004

where can i get documentation on the header.info format?  where can i get
more detailed information on the inner workings of yum beyond what is
covered by http://linux.duke.edu/projects/yum/howitworks.ptml.  how does it
know what is installed on your system vs what is available in the repos vs
what you have but needs to be updated, etc?  the stuff stored
in /var/cache/yum is only the package info for the repositories, right? 
(i.e. the info in the caches tell nothing about your actual system)?  yum
then runs rpm to query your actual system then it compares that output to
what it has in the caches...?

thanks for the info.

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