You’re probably familiar with the steps required to boot Linux from U-Boot: you first load several binaries into memory, perhaps a device tree, a kernel, maybe even an initrd. You then invoke a command such as bootm or booti with arguments providing memory addresses for the binaries you’ve just loaded. However there is a much …
Tag: Nitrogen8M
Power-failure-tolerant bootloader flashing on eMMC
It’s a widely held misconception that flashing a bootloader on a device in the field is risky. The reason is that if power is removed from the device during update, then the bootloader may only be partially flashed and thus won’t boot. This view is correct for devices that boot from a single location without …