This repository contains the source for an Ubuntu Core gadget snap
for the SolidRun Hummingboard. Building it with snapcraft will
automatically pull, configure, patch and build the git.denx.de/u-boot.git
upstream source for mx6cuboxi_defconfig at release v2017.01 and produce
a bootable gadget snap with the resulting binaries.
Gadget snaps are a special type of snaps that contain device specific support code and data. You can read more about them in the snapd wiki https://github.com/snapcore/snapd/wiki/Gadget-snap
To build the gadget snap locally on a native armhf system just run snapcraft
in the toplevel of the tree.
Copy the crossbuild-snapcraft.yaml over snapcraft.yaml and run snapcraft
cp crossbuild-snapcraft.yaml snapcraft.yaml
snapcraft
The splashscreen has been created from a jpeg with the following line:
jpegtopnm splash.jpg | ppmquant 256 | ppmtobmp -bpp 8 >splash.bmp
See https://www.denx.de/wiki/DULG/UBootBitmapSupport for more info.