红帽全球峰会2.6. 下载 ISO 并为使用做准备
运行以下命令，使用 ID 下载 ISO：
$ sudo composer-cli compose image ${BUILDID}运行以下命令，将下载的容器镜像的所有权改为当前用户：
$ sudo chown $(whoami). ${BUILDID}-installer.iso运行以下命令，在镜像中为当前用户添加读取权限：
$ sudo chmod a+r ${BUILDID}-installer.iso
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