Updating the Software

After the image on the development board has been updated from the original factory image, there are three main software components that can be updated: the bootloader, the kernel and the distribution packages. The installed packages can be updated in the normal way using the``apt`` tool to update and upgrade them:

sudo apt update
sudo apt full-upgrade

Currently, the bootloader can only be updated by reflashing the eMMC on the board – see Flashing the System Image for instructions. This limitation will be fixed when the following issue is resolved:

• Package u-boot and m4.bin as Deb packages

The kernel can be upgraded from a package file using dpkg. In the future it will also be possible to upgrade the kernel using apt when these issues are resolved:

• Build a “proper” kernel package
• Upload built kernels

These instructions will be updated as developments occur.