Downgrade from Panorama 10.0

Procedure on how to downgrade from Panorama 10.0 to Panorama 9.1.
PAN-OS® 10.0 introduces the ability to configure local and Panorama administrators for Dedicated Log Collectors and WildFire appliances, the ability to for logs over Ethernet interfaces, automated dynamic updates for air-grapped Panorama™ management servers, the ability to perform actions on filtered rules in the Policy Optimizer, and additional 60 and 90 day filters for monitoring, ACC, on-demand reports. However, these features are not compatible with Panorama running PAN-OS 9.1 or earlier release. Use the following workflow to downgrade firewalls before you downgrade Log Collectors and Panorama running a Panorama 10.0 release to an earlier feature release. This procedure works both for Panorama when managing a local Log Collector and for Panorama when managing one or more Dedicated Log Collectors.
After a successful downgrade to PAN-OS 9.1, querying threat logs using a
name-of-threatid
return no results for up to 24 hours. After which, queries using the
name-of-threatid
filter start to return results for logs generated in PAN-OS 9.1 and earlier releases. However, you cannot query logs using this filter for logs generated in PAN-OS 10.0. No action is required on your part.
Review the Palo Alto Networks Compatibility Matrix to confirm that the firewalls and appliances you intend to downgrade are compatible with the PAN-OS release to which you intend to downgrade. For the firewalls and appliances that you can downgrade, you should also review the Upgrade/Downgrade Considerations to ensure that you account for all features and configuration settings that will be different or unavailable after you downgrade.
  1. Save a backup of the configuration files for Panorama and managed devices.
    1. Export Panorama and device configuration snapshot
      (
      Panorama
      Setup
      Operations
      ).
    2. Save the exported .tgz file to a location external to Panorama, Log Collectors, and firewalls. You can use this backup to restore the configuration if you experience problems that cause you to start over.
  2. If you have configued authentication for a Dedicated Log Collector and removed the
    admin
    administrator, configure and push a new
    admin
    user to your Dedicated Log Collectors.
    Dedicated Log Collectors must have the
    admin
    user configured in order to downgrade to PAN-OS 9.1 and earlier releases.
  3. Downgrade each firewall running a PAN-OS 10.0 release.
    If downgrading more than one firewall, streamline the process by having each firewall-specific PAN-OS 9.1 image downloaded to Panorama before you start downgrading. For example, to downgrade your PA-220 firewall to PAN-OS 9.1.0, download the
    PanOS_220-9.1.0
    or
    PanOS_3000-9.1.0
    images.
    Panorama requires that all firewalls are running the same or an earlier PAN-OS release. So before you downgrade Panorama, use and repeat the appropriate tasks below according to your environment to downgrade all managed firewalls as needed:
    1. Check Now
      for available images (
      Panorama
      Device Deployment
      Software
      ).
    2. Locate the PAN-OS 9.1 image for each model or series of firewalls you intend to downgrade. If the image is not already downloaded, then
      Download
      it.
    Non-HA Firewall
    Install
    (Action column) the appropriate PAN-OS 9.1 version, select all the firewalls you intend to downgrade, select
    Reboot device after install
    , and click
    OK
    .
    Active/Active HA Firewalls
    1. Click
      Install
      , disable (clear)
      Group HA Peers
      , select either of the HA peers, select
      Reboot device after install
      , and click
      OK
      . Wait for the firewall to finish rebooting before you proceed.
    2. Click
      Install
      , disable (clear)
      Group HA Peers
      , select the HA peer that you didn’t update in the previous step, select
      Reboot device after install
      , and click
      OK
      .
    Active/Passive HA Firewalls
    In this example, the active firewall is named fw1 and the passive firewall is named fw2:
    1. Install
      (Action column) the appropriate update, disable (clear)
      Group HA Peers
      , select fw2, select
      Reboot device after install
      , and click
      OK
      .
    2. After fw2 finishes rebooting, verify fw1 (
      Dashboard
      High Availability
      widget) is still the active peer and that fw2 is still the passive peer (the Local firewall state is
      active
      and the Peer—fw2—is
      passive
      ).
    3. Access fw1 and
      Suspend local device
      (
      Device
      High Availability
      Operational Commands
      ).
    4. Access fw2 (
      Dashboard
      High Availability
      ) and verify that the Local firewall state is
      active
      and the Peer firewall—fw1—is
      suspended
      .
    5. Access Panorama, select
      Panorama
      Device Deployment
      Software
      ,
      Install
      (Action column) the appropriate update, disable (clear)
      Group HA Peers
      , select fw1, select
      Reboot device after install
      , and click
      OK
      . Wait for fw1 to finish rebooting before you proceed.
    6. Access fw1 (
      Dashboard
      High Availability
      widget) and verify that the Local firewall state is
      passive
      and the Peer—fw2—is
      active
      .
      If you enabled preemption in the Election settings (
      Device
      High Availability
      General
      ), then fw1 will be reinstated as the active peer after reboot.
  4. Downgrade each Log Collector running Panorama 10.0.
    1. Check Now
      for available images (
      Panorama
      Device Deployment
      Software
      ).
    2. Locate the Panorama 9.1 image. If the image is not already downloaded, then
      Download
      it (Action column).
    3. After the download is complete,
      Install
      the image on each Log Collector running Panorama 10.0. Select
      Reboot device after install
      to automatically reboot the device when the upgrade is complete.
  5. Downgrade Panorama.
    1. Check Now
      for available images (
      Panorama
      Device Deployment
      Software
      ).
    2. Locate the Panorama 9.1 image. If the image is not already downloaded, then
      Download
      it.
    3. After the download is complete,
      Install
      the image on Panorama.
    4. Reboot Panorama as follows:
      • If you are prompted to reboot, click
        Yes
        . If you see a
        CMS Login
        prompt, press Enter without typing the username or password. When the Panorama login prompt appears, enter the username and password you set during initial configuration.
      • If you are not prompted to reboot, select
        Panorama
        Setup
        Operations
        and click
        Reboot Panorama
        (Device Operations).

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