红帽全球峰会3.10. QCOW：清理订阅池
流程
安装必要的软件包以自定义镜像后，删除订阅池并取消注册镜像：
$ virt-customize --selinux-relabel -a overcloud-full.qcow2 --run-command 'subscription-manager remove --all' [ 0.0] Examining the guest ... [ 12.0] Setting a random seed [ 12.0] Running: subscription-manager remove --all [ 18.0] Finishing off
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