[PLUG] CentOS /etc/yum.repos.d/CentOS-Base.repo broken, now fixed

[Galen Seitz]

Sometime in the past month or two I picked up a new
/etc/yum.repos.d/CentOS-Base.repo file via a yum update.  This file
was specifying port 81 in the mirrorlist URL.  Apparently they thought
this was a good idea, and then had second thoughts.  Anyway, there was
a window of time where an update might have picked up the port 81 version.
Today, if CentOS-Base.repo contains the port 81 version of the file, the
following error occurs:

$ yum list updates
Setting up repositories
Cannot find a valid baseurl for repo: update
Error: Cannot find a valid baseurl for repo: update

To fix the problem, just edit CentOS-Base.repo and remove ":81" from all
of the mirrorlist URLs.

galen