Preliminary support for dtb override from OEM snapsJan 30, 2015
Today the always in motion ppa
ppa:snappy-dev/tools has landed support for
overriding the dtb provided by the platform in the device part with one
provided by the oem snap.
package.yaml for the oem snap has been extended a bit to support this,
an example follows for extending the am335x-boneblack platform.
name: mydevice.sergiusens vendor: sergiusens icon: meta/icon.png version: 1.0 type: oem branding: name: My device subname: Sergiusens Inc. store: oem-key: 123456 hardware: dtb: mydtb.dtb
hardware/dtb key in the
yaml holds a value which is the path to
the dtb withing the package, so in this case, I put mydtb.dtb in the root of
After that it’s just a
snappy build away:
snappy build .
In order to get this properly provisioned, first we need the latest
ubuntu-device-flash from the
ppa:snappy-dev/tools, so let’s get it
sudo add-apt-repository ppa:snappy-dev/tools sudo apt update sudo apt install ubuntu-device-flash
And now we are ready to flash
sudo ubuntu-device-flash core \ --platform am335x-boneblack \ --size 4 \ --install mydevice_sergiusens_1.0_all.snap --output bbb_custom.img
If everything went well, the boot partiton will hold your custom dtb instead of
the default one, specifying
--platform is required for this.
Please note that some of these things described here are subject to change.