I installed ovirt-engine on Centos7. My target is to have a single host machine.

During the installation of the (first and unique) host, I get an error:

Failed to install Host xxxx. Yum Non-fatal POSTIN scriptlet failure in rpm package gtk2-2.24.28-8.el7.x86_64.

This error is followed by other errors:

Failed to install Host xxxx. Failed to execute stage 'Package installation': One or more elements within Yum transaction failed.

and finally:

Host xxxx installation failed. Command returned failure code 1 during SSH session 'root@xxxx.mydomain.it'.

All other libraries are yum-installed without problems.