Resolved! Upgrading PAN-OS 8.1.x to 9.1.10
I want to upgrade PA-3220 (Active - Passive) from 8.1.14 to 9.1.10
Is this upgrade method correct or not?
1.Download and install PanOS 9.0.0 (no reboot) Should I upgrade PanOS to 8.1.19 (Preferred release) or not?
2.Download and install PanOS 9.