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A Method Based on Boot Partition Extraction and Reconstruction

A technology for guiding partitions and extracting modules, which is applied in the input/output process of data processing, instruments, input/output to record carriers, etc., and can solve problems such as the failure of the system to start normally.

Active Publication Date: 2021-09-17
深圳市数存科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So when one of the three parts of the master boot record is damaged, the system will not start normally

Method used

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  • A Method Based on Boot Partition Extraction and Reconstruction

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Embodiment Construction

[0050] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0051] When the computer system is started, the hardware equipment of the machine is firstly tested. After the test is successful, it enters the bootstrap program INT19H, and then reads the contents of the master boot record of cylinder 0, head 0, and sector 1 of the disk into the specified memory unit. It is the area starting from 0:7C00, and executes the MBR program segment. The master boot record takes precedence over all instructions that the operating system is loaded into memory and plays a leading role. Finally...

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Abstract

The invention discloses a method based on boot partition extraction and reconstruction, which relates to computer software technology and is used for realizing and quickly restoring the main boot; The number of header sectors; in the state of computer troubleshooting, the extraction module reads the partition guide, reads the total number of sectors in C area indicated by the first four bytes, and in the state of computer troubleshooting, offsets the address A sector starting from 7C00H is all cleared, and the address of the cleared sector is 7C00H-7DFFH; start from 7DBEH, which is the part starting from the first partition information table, to restore the C area partition table; rebuild the module to restore the extended partition partition Table; add Windows mark at 7DDE by writing the module; rebuild the link of the module and write the module to rewrite the main boot program, use the command FDI SK / MBR; finally realize and quickly restore the main boot.

Description

technical field [0001] The invention belongs to the technical field of computer software, in particular to a method based on boot partition extraction and reconstruction. Background technique [0002] The master boot sector of the hard disk is a sensitive area, and its safety directly determines whether the hard disk can be used normally. A deep understanding and flexible use of the master boot sector of the hard disk will help your system maintenance and many special tasks. [0003] With the continuous development of computer technology, computer viruses are becoming more and more serious, and they are constantly looking for opportunities to destroy computer programs. Some viruses specifically destroy the master boot information of the computer, so that the machine cannot start normally; the hard disk master boot record (MBR) is located at cylinder 0, head 0, and sector 1, occupying 446 bytes. It is used to reset the system when the hard disk starts. Control is transferre...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
CPCG06F3/0632G06F3/0644G06F3/0655
Inventor 徐胜旺
Owner 深圳市数存科技有限公司