Selective switching of an active partition in an electronic device
An electronic device (such as an access point) that selectively changes to an alternative or different partition is described. During operation, when the electronic device is in a first power state (such as a lower power state), an integrated circuit in the electronic device may detect or receive an error state or a change instruction. In response, the integrated circuit may change an active partition in the electronic device from a first partition to a second partition. Next, the integrated circuit may transition the electronic device to a second power state (such as a higher power state). Furthermore, a processor in the electronic device (which may be the same as or different from the integrated circuit) may install and execute an operating system of the electronic device in the second partition.
1. An electronic device, comprising:
memory that stores: a bootloader, a first partition with a first system image, and a second partition with a second system image; and
an integrated circuit, wherein the integrated circuit is configured to:
when the electronic device is in a first power state, run the bootloader, wherein the bootloader is configured to:
detect or receive an error state based at least in part on a predefined time-varying power pattern of the electronic device within a predefined time interval, wherein the predefined time-varying power pattern is different from a power pattern associated with power fluctuations, and wherein the predefined time-varying power pattern comprises toggling between different power states of the electronic device a predefined number of times within the predefined time interval, and the toggling between the different power states is in response to one or more user received inputs;
change an active partition in the electronic device from the first partition to the second partition based at least in part on the detecting; and
transition the electronic device to a second power state; and
install and run an operating system of the electronic device in the second partition after running the bootloader.
2. The electronic device of claim 1 , wherein the first power state is a lower power state and the second power state is a higher power state.
3. The electronic device of claim 1 , wherein the integrated circuit is different from a processor in the electronic device.
4. The electronic device of claim 1 , wherein changing the active partition in the electronic device does not change a configuration of the electronic device.
5. The electronic device of claim 1 , wherein, after the operating system is installed and run a predefined number of times in a first time interval by the integrated circuit, the integrated circuit is configured to perform a factory reset of the electronic device to a default state or configuration.
6. The electronic device of claim 1 , wherein the first system image is different from the second system image.
7. The electronic device of claim 1 , wherein detecting or receiving the error state or a change instruction comprises detecting activation of a physical button or switch in the electronic device for at least the predefined time interval.
8. The electronic device of claim 7 , wherein activation of the physical button or switch comprises pressing and holding of the physical button or switch for at least the predefined time interval.
9. The electronic device of claim 7 , wherein the physical button or switch comprises a power button or a reset button of the electronic device.
10. The electronic device of claim 1 , wherein detecting or receiving the error state comprises detecting two or more boot failures of the electronic device.
11. The electronic device of claim 1 , wherein detecting or receiving the error state comprises detecting a software configuration or that the first system image is corrupted.
12. The electronic device of claim 1 , wherein detecting or receiving the error state comprises receiving a change instruction associated with a second electronic device.
13. The electronic device of claim 12 , wherein the change instruction comprises: receiving a predefined number of messages or signals associated with the second electronic device in a first time interval; or receiving a pattern of messages or signals associated with the second electronic device in the first time interval.
14. A non-transitory computer-readable storage medium for use in conjunction with an electronic device, the computer-readable storage medium storing program instructions that, when executed by the electronic device, causes the electronic device to perform operations comprising:
when the electronic device is in a first power state, running a bootloader, wherein the bootloader causes the electronic device to perform second operations comprising:
detecting or receiving an error state based at least in part on a predefined time-varying power pattern of the electronic device within a predefined time interval, wherein the predefined time-varying power pattern is different from a power pattern associated with power fluctuations, and wherein the predefined time-varying power pattern comprises toggling between different power states of the electronic device a predefined number of times within the predefined time interval, and the toggling between the different power states is in response to one or more user received inputs;
changing an active partition in the electronic device from a first partition in memory in the electronic device to a second partition in memory in the electronic device based at least in part on the detecting or the receiving of the error state; and
transitioning the electronic device to a second power state; and
installing and running an operating system of the electronic device in the second partition after running the bootloader.
15. The non-transitory computer-readable storage medium of claim 14 , wherein the first power state is a lower power state and the second power state is a higher power state.
16. A method for selectively changing from a first partition to a second partition, comprising:
by an electronic device:
when the electronic device is in a first power state, running a bootloader, wherein the bootloader causes the electronic device to perform operations comprising:
detecting or receiving an error state based at least in part on a predefined time-varying power pattern of the electronic device within a predefined time interval, wherein the predefined time-varying power pattern is different from a power pattern associated with power fluctuations, and wherein the predefined time-varying power pattern comprises toggling between different power states of the electronic device a predefined number of times within the predefined time interval, and the toggling between the different power states is in response to one or more user received inputs;
changing an active partition in the electronic device from a first partition in memory in the electronic device to a second partition in memory in the electronic device based at least in part on the detecting or the receiving of the error state; and
transitioning the electronic device to a second power state; and
installing and running an operating system of the electronic device in the second partition after running the bootloader.
17. The non-transitory computer-readable storage medium of claim 14 , wherein changing the active partition in the electronic device does not change a configuration of the electronic device.
18. The non-transitory computer-readable storage medium of claim 14 , wherein, after the operating system is installed and run a predefined number of times in a first time interval, the operations comprise performing a factory reset of the electronic device to a default state or configuration.
19. The method of claim 16 , wherein the first power state is a lower power state and the second power state is a higher power state.
20. The method of claim 16 , wherein, after the operating system is installed and run a predefined number of times in a first time interval, the method comprises performing a factory reset of the electronic device to a default state or configuration.