feat: Use ubuntu core 18

boards/amd64.yaml

@@ -1,3 +1,5 @@
 architecture: amd64
-gadget: joule
+gadget: pc=18
-kernel: joule-linux
+kernel: pc-kernel=18
+model: ppl-hub-amd64
+display-name "ppl Hub (amd64)"

boards/opi0.yaml

@@ -1,3 +1,5 @@
 architecture: armhf
 gadget: orangepi-zero-gadget
 kernel: orangepi-zero-kernel
+model: ppl-hub-opi0
+display-name: "ppl Hub (Orange Pi Zero)"

boards/rpi2.yaml

@@ -1,3 +1,5 @@
 architecture: armhf
-gadget: pi2
+gadget: pi2=18
-kernel: pi2-kernel
+kernel: pi-kernel=18-pi2
+model: ppl-hub-pi2
+display-name: "ppl Hub (Raspberry Pi 2)"

boards/rpi3.yaml

@@ -1,4 +1,5 @@
 architecture: armhf
-gadget: pi3
+gadget: pi3=18
-kernel: pi2-kernel
+kernel: pi-kernel=18-pi3
-
+model: ppl-hub-pi3
+display-name: "ppl Hub (Raspberry Pi 3)"

definition.yaml

@@ -1,7 +1,7 @@
 # basic
 type: model
 series: "16"
-model: ppl-hub
+base: core18
 # snaps to be preinstalled:
 required-snaps:
  - nextcloud # just for proof-of-concept