[ovirt-users] An error has occurred during installation of Host

Hello everyone, I have installed an 'oVirt Engine' by 'yum install ovirt-engine' and the engine runs fine after 'engine-setup'. But when I trying to add node host,some error occurred: 1st: An error has occurred during installation of Host node02: Yum Cannot queue package dmidecode: 'ascii' codec can't encode characters in position 143-147: ordinal not in range(128). 2ed: An error has occurred during installation of Host node02: Failed to execute stage 'Environment packages setup': 'ascii' codec can't encode characters in position 143-147: ordinal not in range(128). 3rd: Host node02 installation failed. Command returned failure code 1 during SSH session 'root@node02'. On host node02,package dmidecode has been installed: rpm -qa | grep dmidecode python-dmidecode-3.12.2-3.el7.x86_64 dmidecode-3.1-2.el7.x86_64 anyone can help ? Thanks !