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C.4.5. 在映射设备中创建文件系统或者继续构建复杂存储构架
使用映射设备节点（
/dev/mapper/<name>）作为其他块设备。要在映射设备中创建 ext2 文件系统，请使用以下命令：
mke2fs /dev/mapper/<name>
要将这个文件系统挂载到
/mnt/test，请使用以下命令：
重要
执行这个命令前目录
/mnt/test 必须已经存在。
mount /dev/mapper/<name> /mnt/test
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