OPERATING SYSTEM UPGRADE METHOD, ELECTRONIC DEVICE, STORAGE MEDIUM, AND CHIP SYSTEM

Embodiments of this application provide an operating system upgrading method, an electronic device, a storage medium, and a chip system, and relate to the field of computer technologies, to upgrade a combination of a plurality of sub-partitions in an operating system, so that various upgrading requirements are flexibly met. The method includes: obtaining a first upgrade installation package and a second upgrade installation package, where the first upgrade installation package includes first data, the first data includes partition information of a first sub-partition, the second upgrade installation package includes second data, and the second data includes partition information of a second sub-partition; obtaining a plurality of third description groups based on third data and a plurality of second description groups, where the third data includes the partition information of the first sub-partition and the partition information of the second sub-partition, and the plurality of third description groups include description groups respectively corresponding to the first sub-partition, the second sub-partition, and a third sub-partition; and restarting an electronic device, reading values of address entries in the plurality of third description groups, and loading data in a dynamic partition based on the values of the address entries in the plurality of third description groups.