This is the second time I’ve had this happen. During the firmware file upload on a PR1, as soon as that part finishes, groov manage logged me out (it took a long time to upload since the firmware files are too big and this is located remotely).
How do I know the status up the update, is it still going or did it stop?
Yes it does auto reboot.
Twice.
The first is the clean boot with the new firmware and on that boot it checks if it has a backup file it needs to restore, if it finds it (if you checked the backup option of the update process) it copies the data into the right places and then reboots again and comes up with the old host name, Node-RED flows and Nodes, firewall etc (all the stuff you checked when you did the pre-upgrade flight check).