The .hdr (header) files are encripted lists of what files and installation targets are in the particular rpm with another stuff needed by up2date. It looks like they are binary files because when you try to view the file with a text editor it throws garbage. If you filter it through strings it shows more sensible info.
strings file.hdr | less
P.S. As for me up2date removes header files from /var/spool/up2date dir after rpms are installed, the rpms that weren't install their headers are still kept there.
Last edited by neo77777; 04-10-2002 at 11:43 PM.