SPL rollback method and device based on UBOOT, storage medium and terminal

Abstract

The invention provides an SPL rollback method and device based on UBOOT, a storage medium and a terminal. The SPL rollback method comprises the steps that: an MISC partition of the terminal is read, and OTA upgrading information of the terminal is obtained; the obtained OTA upgrading information is analyzed, and whether OTA upgrading is completed or not is judged; if the judgment result is that the OTA upgrade fails, the data in the SPL main partition is replaced with the data in the SPL standby partition, and the terminal is restarted to complete SPL rollback; and if the judgment result is that OTA upgrading is successful, SPL rollback does not need to be carried out. Whether normal startup can be carried out or not is detected in time after OTA upgrade by using the recognition characteristic of UBOOT on an A / B partition of an MISC partition, and after OTA upgrade failure is detected, the SPL main partition and the SPL standby partition are read and written in time, the data in the SPL main partition is replaced with the data in the SPL standby partition, and a terminal is restarted, so that the purpose of rollback of the SPL is achieved. The situation that the terminal fails to start due to the fact that the SPL main partition and the SPL standby partition are inconsistent is prevented, and then the situation that the terminal cannot be started due to the fact that the IMG is incompatible is prevented.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a UBOOT-based SPL rollback method and device, a storage medium, and a terminal. Background technique [0002] After the partition of VBA (Visual Basic macro language) architecture is upgraded through OTA (Over-the-Air Technology, over-the-air technology), it may encounter the phenomenon that the upgrade fails or errors cause it to fail to start normally. After the OTA upgrade fails, all partitions will be rolled back to the old partition. However, in the prior art, since the loading of the SPL (Secondary program loader, the second-stage application loader) depends on the ROMCODE (startup code inside the chip), the OTA code is not supported in the ROMCODE. Therefore, the SPL cannot be rolled back by modifying the ROMCODE. In the end, the SPL primary partition did not implement the rollback, and the other partitions were successfully rolled back. As a result, the terminal may f...

AI Technical Summary

Problems solved by technology

However, in the prior art, since the loading of SPL (Secondary program loader, the second-stage application loader) relies on ROMCODE (chip internal startup code), ROMCODE does not support OTA code

Therefore, the SPL cannot be rolled back by modifying the ROMCODE

In the end, the SPL primary partition did not implement the rollback, and other partitions were successfully rolled back, which may cause the terminal to fail to start due to the inconsistency between the SPL primary partition and the SPL backup partition

When encountering major changes in SPL and OTA upgrade is also required, the terminal may not be able to boot due to incompatibility of IMG (a file compression format)

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