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Reorganizing images in static file system differencing and updating

机译:重新组织静态文件系统中的映像以进行差异化和更新

摘要

Systems and methods are provided for reorganizing static file system (SFS) images for efficient differencing, updating and to reduce the update time. The systems and methods are for updating compressed read-only memory file system (CRAMFS) format images as an example. The reorganizing receives an image that includes one or more SFS components such as CRAMFS components and determines any changed sections within the SFS images. Reorganized CRAMFS components are generated using information of the CRAMFS components by moving any of the changed sections from a first position to a second position in the component. The second position can follow all unchanged data sections of the image. A modified image is generated that includes the reorganized CRAMFS component. The modified image is used in SFS differencing and updating.
机译:提供了用于重新组织静态文件系统(SFS)映像的系统和方法,以进行有效的区别,更新并减少更新时间。作为示例,该系统和方法用于更新压缩的只读存储器文件系统(CRAMFS)格式的图像。重组接收包含一个或多个SFS组件(例如CRAMFS组件)的映像,并确定SFS映像中任何更改的部分。通过将组件中的任何更改的部分从第一位置移动到第二位置,使用CRAMFS组件的信息生成重组的CRAMFS组件。第二位置可以跟随图像的所有未更改的数据部分。生成的修改的映像包括重组的CRAMFS组件。修改后的映像用于SFS差异和更新。

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