I want to know how to build the rancherOS image on Raspberry Pi? I mean build it by myself not use the release one. Thank you !
essentially, checkout the https://github.com/rancher/os repository, on your pi, and run make release
You will need quite a bit of swap, and quite a bit of disk space.
then, change dir to images/raspberry-pi-hypriot , modify the RancherOS for Arm wget line (I replace it with a COPY of the artifact built in the previous step) and run ../../.dapper