Linux system MBR loss and recovery

MBR, which is the master boot record.

The MBR describes the logical partitioning information, including the file system and how it is organized.

When the MBR is accidentally deleted or lost, it will cause the system to fail to start.

Linux startup flowchart

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Environment: CentOS 6.4

one, if the MBR is missing error, causing the failure to start .

Simulating removal of MBR

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Then reboot appears and select the third emergency rescue mode to start.

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Then there is the choice of language and keyboard input type, as well as rescue methods and so on, after the execution appears

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Select Shell Start Shelland click OK

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Then switch the root and rebuild the MBR

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Direct execution two exit ,exit, select reboot, restart

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The following figure appears

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Started successfully.

This article is from the "Wang Supeng blog" blog, make sure to keep this source http://wangcf1009.blog.51cto.com/8589325/1567664

Linux system MBR loss and recovery