Hello
I have been having issues with spacewalk and Scientific Linux 6.4 and 6 rolling repos
after investigation I found 2 errors
first
"
Repo http://ftp.scientificlinux.org/linux/scientific/6.4/x86_64/os/ has comps file comps-sl6-x86_64.xml.gz.
ERROR: Not a gzipped file
"

The second is spacewalk 1.8 doesn't handle the error gracefully but version 1.9 does.
note version 1.8 does not produce the "ERROR: Not a gzipped file" instead it does a trace back about an unknown error code.

Ive checked http://ftp.scientificlinux.org/linux/scientific/6.4/x86_64/os/repodata/comps-sl6-x86_64.xml.gz and been able to confirm that indeed it is not gziped this should be corrected in whatever script is generating it.

Thank You
Paul Robert Marino