If for whatever reason, you are stuck with the now EOL version of the CentOS operating system, you can no longer run yum upgrade successfully. Running yum upgrade in CentOS 6 will yield the following results:Setting up Upgrade ProcessYumRepo Error: All mirror URLs are not using ftp, http[s] or file.Eg. Invalid release/repo/arch combination/removing mirrorlist...
How to fix yum after CentOS 6 went EOL
Continue reading How to fix yum after CentOS 6 went EOL