Operating system loading method used for computer

Abstract

The invention discloses an operating system loading method, which is used for a computer with a hard disk including one or a plurality of partitions which store different operating systems respectively. The operating system loading method comprises the following steps: S102, setting bootstrap program for the operating systems in each partition in one or a plurality of partitions of the hard disk of the computer respectively; and S104, selecting one of bootstrap program in one or a plurality of partitions for loading in the process of starting up the computer, thereby further loading the operating systems guided by the selected bootstrap program through the selected bootstrap program. The invention can load specific operating systems under the condition of not influencing other operating systems in the computer.

Description

technical field [0001] The invention relates to the field of computers, and more particularly relates to a method for loading an operating system for a computer. Background technique [0002] At present, the startup of the dual-mode system mainly depends on adding a specific dual-mode boot module in the Basic Input Output System (BIOS for short), by adding a A special function call is used to load a custom function system located in a Lenovo Reserved Area (LRA for short). At present, in the process of practical application engineering, it is found that there are some compatibility-related problems, so it is necessary to research and develop a new solution with strong compatibility and scalability. [0003] Existing solution 1: modify the Master Boot Record (MBR) on the primary partition of the hard disk, and expand its functions so that it can load not only the common operating system installed by the user, but also the specific functions customized by each manufacturer sy...

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Problems solved by technology

[0004] The disadvantage of this solution is: since MBR is frequently accessed and modified by various operating systems and various partition maintenance tools, the MBR will be modified when the user installs each new operating system, so there are many compatibility issues in actual use. Questions and questions about after-sales maintenance support

[0006] The disadvantage of this solution is: due to the modification of the conventional BIOS startup operating system process, when the customized system is started, the status environment of the customized system is not exactly the same as that of the normal operating system, resulting in some engineering errors. Special problems; at the same time, there are difficulties in debugging, positioning, and analysis, as well as the difficulty and time-consuming problems of increasing engineering

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