Upgrade OS from 8.1.x to 9.0.x Boot Loop

[TowerBersamaGroup]

Upgrade PA-850 from 8.1.5 to 9.0.6 Boot Loop

Hi,

I want to ask if anyone have experienced upgrading Palo Alto from 8.1.x to 9.0.x and worked it out, because i didnt.

Last night was my nightmare, i tried to upgrade PA-850 straight from 8.1.5 to 9.0.x. For 10 mins it seems work fine, autocommit shows up and completed. But at a sudden, there was system failure caused the device to keep rebooting. it won’t stop and kee repeating after 5 to 10 mins. So i decided to roll back and upgrade to 8.1.14-h2 and looks stable.

I m not sure what caused the problem, since i have difficulty to arrange open ticket due to my parnter service level required me to submit request via local distributor. It’s gonna take some time and I kindly need some advices how to deal with it sooner.

Thanks
Regards,
Quay

[BPry]

@TowerBersamaGroup,

Not going to be able to provide much insight without the log files. Did you by chance have any logs pulled while you were in maintenance mode or have these logs setup to go to an external source that you could see if it managed to send anything related to the issue prior to the boot loop? Anything showing up in the console prior to reload while it was boot looping?