备用磁盘准备好后，就可以执行更新过程了。
After the alternate disk is done, the update process can be performed.
移动完每个页后，就可以对分区进行更新之类的操作了。
After each page move, the partition is available for operations, such as updates.
移动完每个页后，就可以对分区进行更新之类的操作了。
After each page move, the partition is available for operations, such as updates.
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