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A method, device and system for transplanting an operating system

An operating system and root file system technology, applied in program control devices, boot programs, etc., can solve the problems of occupying a large storage space and taking a long time, and achieve the effects of improving efficiency, saving storage space and saving boot time.

Active Publication Date: 2018-11-27
深圳中电长城信息安全系统有限公司
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Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a method for transplanting an operating system, aiming to solve the problem that the file system occupies a large storage space in the existing operating system and takes too long when booting the operating system

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  • A method, device and system for transplanting an operating system
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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0020] In this embodiment, since the organizational structure of romfs occupies relatively less system resources, files following the organizational structure of romfs save storage space compared with ordinary files, so that the generated image files also save storage space, thereby solving the existing problem There is a problem that the file system in the operating system occupies a large storage space. In addition, the image file is attached to the preset directory of the operating system as initialization data, and the image file in the directory can be loaded later through the loading path to s...

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Abstract

The invention is suitable for the technical field of mobile terminals, and particularly relates to a method, a device and a system for transplanting an operating system. The method comprises the following steps: obtaining a core file of the operating system, and establishing a root file system directory of the operating system; generating a mapping file of romfs format of a read-only file system according to the core file of the operating system and the root file system directory; hooking the mapping file as initialized data under a default directory of the operating system. In the embodiment, the problem that an existing file system occupies large storage space in an existing operating system is solved; moreover, the mapping data as the initial data are hooked under the default directory of the operating system, and subsequently the mapping file of the directory can be loaded through a loading path, so that the problem of too long time consumption when the operating system is booted in the existing operating system is solved, the boot time is reduced, and the boot efficiency of the operating system is improved.

Description

technical field [0001] The invention belongs to the technical field of mobile terminals, and in particular relates to a method, device and system for transplanting an operating system. Background technique [0002] The file system is an important part of the operating system. One of the features of Linux is the support for multiple file systems. In addition to Ext2 / 3, during the development of Linux, the designers considered the support for other types of file systems earlier. To achieve this goal, it is necessary to incorporate their operations and management into a unified framework. This unified, abstract, and virtual file system interface is called VFS (virtual FileSystem Switch), which mainly includes a set of standard File operation interface. The VFS used by Linux supports such as ntfs (windows NT file system), msdos (dos file system), isofs (CD file system), nfs (network file system), romfs, ramfs, ex2, jffs2, ms-dos, Various file systems such as nfs. [0003] How...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/4401
Inventor 白林张伟进贾兵傅子奇张路
Owner 深圳中电长城信息安全系统有限公司
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