Might be a selinux related issue, similar threads suggest either to disable selinux completely or run on host:

# setenforce 0
# yum clean expire-cache
# yum update selinux-policy\*
# setenforce 1

keeping an eye out for other reasons/solutions.

Regards,

Yanir Quinn

On Thu, Jul 27, 2017 at 5:32 PM, Iurcev, Massimiliano <miurcev@inogs.it> wrote:

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.

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