On Apr 4, 2012, at 21:13 , Pat Riehecky wrote:

> Scientific Linux "SL 5.8" Beta 2                         April 4, 2012
> 
> See SL.documentation for Upstream vendor release notes.
> 
> Send comments/issues/test reports to [log in to unmask]
[...]
> yum-autoupdate-1.2-1.SL.noarch.rpm

That package hasn't been signed. The SRPM seems to be missing, too.

-- 
Stephan Wiesand
DESY - DV -
Platanenallee 6
15738 Zeuthen, Germany