For anyone migrating a PAN VM-Series on VMWare to Proxmox, none of the suggestions here worked for me unfortunately. Perhaps of note, I was following the procedure to import VMs from ESXi storage via the Proxmox web interface.
The VM
appeared to import successfully from the hypervisor perspective, but I ultimately kept landing in maintenance mode on the firewall when booting. I tried a bunch of hardware combinations/settings shared here but without any luck. I also tried re-installing PAN-OS from within maintenance mode without luck. I'm on PAN-OS 10.2.11.
I ultimately had to entirely re-deploy my VM-Series, but rather than reconfigure from scratch, I grabbed a device state backup (Device > Setup > Operations > Export Device State on the PAN) before getting started.
The I downloaded the "PAN-OS for VM-Series KVM Base Image" (.qcow2) from Palo Alto's support portal. I SCP'd the .qcow2 image to my Proxmox host and then used these commands:
[note the VLAN tag on the first interface; my management VLAN is 10 but it might be different for others]
[PA-VM-KVM-10.2.10-h14.qcow2 is the image downloaded from PAN's support site]
1. qm create 121 --name VMPANW --memory 4608 --cores 2 --ostype l26 --machine pc-q35-8.0 --serial0 socket --net0 model=virtio,bridge=vmbr0,tag=10
2. qm disk import 121 PA-VM-KVM-10.2.10-h14.qcow2 local-lvm --format qcow2
3. qm set 121 --scsihw virtio-scsi-single --virtio0 local-lvm:vm-121-disk-0 --boot order=virtio0
Then used this procedure to set the management IP statically:
https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000ClN7CAK
Finally, I accessed the new VM-Series and restored the device state backup under Device > Setup > Operations on the PAN.