Controller upgrade process

[arist0v]

Add a process to update the contorller to the latest version without having to do a full reinstall

(like OTA update and stuff)

[flatsiedatsie]

Already exists. An addon (Power Settings) could do an upgrade.

• Current version is stored in /boot/candle_version.txt
• Power settings addon creates a menu option "upgrade", which can be found under settings.

• When an upgrade is started, power Settings addon will create a /boot/bootup_actions.sh file. That shell script will be executed at boot if it exists. The script can then download a new version of /home/pi/webthings folder and switch them out. It can also do things like "apt-get upgrade". The idea is that the upgrade script can check what the current version is, and upgrade parts based on that.
• While upgrading a different bootup image (/boot/splash_updating.png) is shown on the display.
• When upgrading is complete, the script deletes itself and reboot the system again.
• Upgrade log is kept in /home/pi/.webthings/candle.log

When in developer mode, "manual upgrade" is already available under the settings menu. It's an example of a simple script that does a system upgrade.

[arist0v]

Can you document the process here please

[flatsiedatsie]

See above