Troy/Connie: While updating from SL 5.5 to SL 5.6, yum with gpgcheck enabled complained that anaconda was not signed:
# cat /etc/redhat-release Scientific Linux SL release 5.6 (Boron) # yum update anaconda anaconda-runtime ... Package anaconda-11.1.2.224-2.SL.x86_64.rpm is not signed I think the 32-bit version and both arch of anaconda-runtime are unsigned, too. Steve