The same method to detect and prevent the hard disk gpt boot partition guid

Abstract

The invention discloses a method for detecting and preventing the same GUID of the GPT boot partition of the hard disk, relates to the technical field of servers, and adds a driver based on the existing BIOS program. During the system startup process, the BIOS reads a handler with BLOCKIO protocol and DISKIO protocol, EFI_SIMPLE_FILE_SYSTEM_PROTOCOL, The handler is the ESP partition; read the GUID allocated in the above handler, and store the GUID in the temporarily allocated memory buffer; compare these GUIDs, if they are the same, send a warning message, if not, continue the subsequent startup program. The invention overcomes the defect that the prior art cannot identify the same GUID of the GPT boot partition of the hard disk, and improves the system data security.

Description

technical field [0001] The invention relates to the technical field of servers, in particular to a method for detecting and preventing the same GUID of a GPT boot partition of a hard disk. Background technique [0002] In server products, multiple hard disk storage devices are usually connected, and for storage products, there may be more hard disk devices. In these storage devices, there may be two or more boot systems stored on different hard disks. The advantage of this approach is that when one hard disk system is damaged beyond repair and cannot be started, you can try to boot from another hard disk. Start in the system, so that you can manage hard disk information more conveniently. Otherwise, you can only try to repair the system as much as possible, or reinstall the system, or mount the data hard disk to another machine to access data. These measures are cumbersome and inconvenient for users, so mounting two systems becomes the best Way. [0003] However, in the a...

AI Technical Summary

Problems solved by technology

Otherwise, you can only try to repair the system as much as possible, or reinstall the system, or mount the data hard disk to another machine to access data. These measures are more cumbersome and inconvenient for users, so mounting two systems becomes the best option. Way

[0003] However, in the actual system production process, some manufacturers or individuals usually use a device such as a hard disk duplicator to directly copy the system for convenience, so that the data and even the partitions of the two systems will be the same

If the two systems are placed on different machines, there is no problem, but if they are placed on the same machine, there will be problems, because the partition information of the two hard disks is the same, and the GUID assigned to the system partition is also the same. Same, it's like two people have the same ID card, potential problems may be unpredictable

In this case, the current BIOS and the system will not prompt the user, which will cause hidden dangers to the data security issues that are becoming more and more important today.

Images