Same problem. I can not even get yum install gd to complete.
> Finished Dependency Resolution
Error: Package: webalizer-2.23_05-5.mr.el6.x86_64 (@mratwork-release-version-arch)
Requires: libgd.so.2()(64bit)
Removing: gd-2.0.35-11.el6.x86_64 (@base)
libgd.so.2()(64bit)
Updated By: gd-2.1.0-1.el6.x86_64 (mratwork-centalt)
Not found
Why 'not found' for mratwork-centalt?
please advise.