Factory reset
Hi,
Factory reset is a mechanism that is target to do a restore of rootfs image, the target is to provide reference software that helps embedded system vendors to do it easily and to be file system independent.
Here is a design proposal to implement Factory reset, next describe the components,
Partitioning: Need to create partition layout with an area for rootfs read-only and another with rootfs rw (day to day OS) also it need another area for Linux Recovery OS (minimal).
Bootloader: Need to detect when a factory reset is needed and boots the Linux Recovery OS. Linux Recovery OS: A minimal Linux OS to perform restore fron rootfs ro area to rootfs rw area. Linux OS: A Linux OS that need to have an application to set the factory reset mode and next reboots, the application will be simple and should have a plugin system for add support of who generate the event IP, Serial, HW button, etc.
All of the settings should be specified at level of user configuration.
I attached a simple flow of how it works, any feedback will be appreciated?
Cheers,
alimon