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如果主superblock损坏之后,如何能够从硬盘中读到备份的superblock?

已更新 -

解决方法:

通常在作磁盘操作之前应该备份磁盘的数据,在作这个操作之前也应该把磁盘上的所有内容备份到另一个磁盘中。就是说如果这个故障盘是20g的话,就需要一个20G的备份空间。备份的命令如下:

#dd if=/dev/baddrive of=/storagearea

然后可以在已经卸载的故障盘上运行...

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