红帽全球峰会3.11. QCOW：取消注册镜像
流程
取消注册镜像，以便 overcloud 部署过程可以将镜像部署到您的节点上，并单独注册每个镜像：
virt-customize --selinux-relabel -a overcloud-full.qcow2 --run-command 'subscription-manager unregister'
$ virt-customize --selinux-relabel -a overcloud-full.qcow2 --run-command 'subscription-manager unregister' [ 0.0] Examining the guest ... [ 11.0] Setting a random seed [ 11.0] Running: subscription-manager unregister [ 17.0] Finishing offCopy to Clipboard Copied! Toggle word wrap Toggle overflow
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