>> 'yum update' runs into the following error message. >> >> Package libuser-devel-0.54.7-2.1.el5_5.2.i386.rpm is not signed > > I got this too, there's two ways around it: > > 1) Wait until the package is signed and then update. > > 2) Run: yum update --nogpgcheck Other workarounds for this particular issue have just been suggested here: http://lists.centos.org/pipermail/centos/2011-April/110547.html http://lists.centos.org/pipermail/centos/2011-April/110551.html