Upgrade from v10.2.4 to v12.0.0, no configuration migrates across
Hi. I want to upgrade an LTM-VE running v10.2.4 HF10 to v12.0.0 so I install the v12.0.0 image onto an available HDD and boot into that HDD, but none of the configuration is present when the system boots into v12.0.0 - no nodes, no pools, no virtual servers, no monitors, no iRules. The network configuration migrates across but nothing else. I have relicensed the v12.0.0 instance with the new license code successfully. If I then reboot back into v10.2.4, the configuration is present again.
I have performed two other LTM-VE upgrades successfully without issues, just this one is causing issues. We use a partition other than Common and I have noticed that the other two units have specific bigip.conf files in the respective /config/partitions/ directory but this unit does not have one - this is confirmed in the QKView upload
Does anyone have any ideas please?