want to do OTA(Over The Air) updates in my raspberry pi. I have seen alot of services on the internet like mender.io, but they are all quite expensive. Is there any easy/less expensive way to do OTA updates in my RPI? for example i have 2 partitons in my RPI. In one partition my current OS is running and now i download the updated OS and would like to install it on 2nd partition. If the installtion get completed without any problem then the bootloader will boot the partition from this partition next time.
Can somebody guide me how can this be achieveable? Thanks a lot!