Embedded dual system updating method and system

Abstract

The invention discloses an embedded dual system updating method. The embedded dual system updating method comprises the following steps of S1, receiving and parsing update instructions under boostloader mode to obtain an update mode and updated image files; S2 judging whether the update mode is the overall update mode of the image files, if so, turning to S3, and if not, turning to S4; S3, reading the partition information of the memory device of the updated image files and repartitioning the memory device; S4, writing the portion of the image file, which is in one-to-one correspondence with the update mode, in the partition of the memory device, which is in one-to-one correspondence with the update mode. The invention discloses an embedded dual system updating system. The embedded dual system updating method and device update any needed partial image or whole image in a simple and flexible mode and successfully solve the problems of complex operation and long duration, which technicians encounter when updating images of a system.

Description

technical field [0001] The present invention relates to an update method and system of an embedded dual system, in particular to a small program that runs before the bootloader (BootLoader is the operation of the operating system kernel. Through this small program, we can initialize hardware devices, build Memory space map, so as to bring the system's hardware and software environment to a suitable state, so as to prepare the correct environment for the final call to the operating system kernel.In embedded systems, there is usually no BIOS (basic input and output system) like Firmware program (note, some embedded CPUs will also embed a short startup program), so the loading and starting task of the entire system is completely completed by BootLoader.) The update method and system of the embedded dual system under the mode. Background technique [0002] With the development of informatization, intelligence, and networking, embedded system technology has gained broad developme...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a flexible update method in order to overcome the defects in the prior art that the update method of the embedded dual system is complicated, the operation is complicated and time-consuming when the dual system is updated, and the burden on technicians is increased. , Method and system for updating embedded dual systems by rationally utilizing storage device space

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