Reply To: Failed dependencies during qt5-base installation

There’s the problem: you are running a derivative of Red Hat 6 yet the rpm command you issued above was trying to install a package designed for Red Hat 7. That’s why you got the GLIBC error.

If you google how to add EPEL to your distro (CentOS 6) you will find detailed instructions; or try this link: https://www.tecmint.com/how-to-enable-epel-repository-for-rhel-centos-6-5/ That will make installation of qt5 (and other non-core packages) easier.

If you want to install a single package directly from a repo (as you did above), you can do so but ensure you are using CentOS 6 repo. (Not CentOS 7).