[root@192-168-166-220 rpm-gpg]# grep ERROR /var/log/ovirt-engine/host-deploy/ovirt-host-deploy-20160107165628-192.168.166.109-39218f6e.log
2016-01-07 16:56:28 ERROR otopi.plugins.otopi.packagers.yumpackager yumpackager.error:100 Yum The GPG keys listed for the "CentOS-7 - Virt - www.sky-mobi.com" repository are already installed but they are not correct for this package.
2016-01-07 16:56:28 ERROR otopi.context context._executeMethod:165 Failed to execute stage 'Package installation': The GPG keys listed for the "CentOS-7 - Virt - www.sky-mobi.com" repository are already installed but they are not correct for this package.

排查是
[root@192-168-166-220 rpm-gpg]# vim /etc/yum.repos.d/CentOS7-Base.repo
#released virt
[virt]
name=CentOS-$releasever - Virt - www.sky-mobi.com
baseurl=http://192.168.160.200/yum/centos/$releasever/virt/$basearch/ovirt-3.6/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-$releasever
这个GPGkey不正确,由于用不到此源,注释掉解决了.
2016-01-07 16:56:28 ERROR otopi.plugins.otopi.packagers.yumpackager yumpackager.error:100 Yum The GPG keys listed for the "CentOS-7 - Virt - www.sky-mobi.com" repository are already installed but they are not correct for this package.
2016-01-07 16:56:28 ERROR otopi.context context._executeMethod:165 Failed to execute stage 'Package installation': The GPG keys listed for the "CentOS-7 - Virt - www.sky-mobi.com" repository are already installed but they are not correct for this package.

排查是
[root@192-168-166-220 rpm-gpg]# vim /etc/yum.repos.d/CentOS7-Base.repo
#released virt
[virt]
name=CentOS-$releasever - Virt - www.sky-mobi.com
baseurl=http://192.168.160.200/yum/centos/$releasever/virt/$basearch/ovirt-3.6/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-$releasever
这个GPGkey不正确,由于用不到此源,注释掉解决了.