Firewall not booting after upgrade to 9.0.7

• After upgrading from PanOS 8.1 to 9.0 the dataplane will not come up due to autocommit failures. The following entires are seen in the system log

2020/04/19 14:20:37 high     general        general 0  Autocommit job failed  
2020/04/19 14:20:22 high     general        general 0  Autocommit job failed 
2020/04/19 14:20:07 high     general        general 0  Autocommit job failed 
2020/04/19 14:19:52 high     general        general 0  Autocommit job failed 
2020/04/19 14:19:37 high     general        general 0  Autocommit job failed

• If you try to perform a commit force you will get this DHCP related error:

pan_dhcpd_interface_mode_init(ae1.2279) failed(Module: dhcpd)
ethernetae1.2279 -> relay constraints failed : at least either v4 or v6 relay should be enabled ethernetae1.2279 -> relay is invalid

• The following errors are seen in pan_dhcpd.log

<omitted> Error: pan_dhcpd_parse_server_relay_config(pan_dhcpd_parse.c:476): pan_dhcpd_interface_mode_init(ae1.2279) failed
<omitted> Error: pan_dhcpd_parse_config(pan_dhcpd_parse.c:581): error parsing server/relay config

• PA-5250
• PanOS 9.0.7
• HA
• DHCP Relay enabled on 4 AE interfaces

1. In the firewall GUI go to Network -> DHCP and click on the DHCP Relay tab
2. Click on the first interface on the list
3. Under DHCP Server IPv4 address or DHCP Server IPv6 address, click Add
4. Add the DHCP server IPv4 or IPv6 address
5. Click OK
6. Repeat the process for any other interfaces in the list
7. Restart the device-server process to trigger an autocommit on the firewall

> debug software restart process device-server