I'm not sure if this is a transient error or not. I have not run it in the past.
[root@www ~]# /sbin/e-smith/audittools/newrpms
Loaded plugins: fastestmirror, post-transaction-actions, smeserver
Loading mirror speeds from cached hostfile
Error: Cannot find a valid baseurl for repo: base
YumRepo Error: All mirror URLs are not using ftp, http/https or file.
Eg. Invalid release/repo/arch combination/
removing mirrorlist with no valid mirrors: /var/cache/yum/x86_64/6/base/mirrorlist.txt
[root@www ~]#