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How to Reinstall or Revert PAN-OS from Maintenance Mode - Knowledge Base - Palo Alto Networks

How to Reinstall or Revert PAN-OS from Maintenance Mode

169106
Created On 09/27/18 10:12 AM - Last Modified 07/25/24 05:56 AM


Symptom


Overview

If the device boots into maintenance mode continuously(it means you cannot boot up the system, and the device into maintenance mode repeatedly), reverting or reinstalling PAN-OS may fix the issue. This document describes how to revert or reinstall PAN-OS from maintenance mode.



Environment


  • PAN-OS


Cause


It may be caused by system file corruption.

Resolution


Steps

  1. Proceed to the Maintenance Recovery Tool from CLI by following the steps in How to Enter Maintenance Mode KB.
     

    User-added image
     

  2. Navigate and select Disk Image.
     

    User-added image

     

  3. The current active version of PAN-OS and the revertible version of OS will be available.
     

    User-added image
     

  4. Select the appropriate action (revert/reinstall). Both revert and reinstall load PAN-OS on the alternate sysroot partition.
     
  5. Once the revert/reinstall operation is complete, a message shows up if the action resulted in success or failure. Once the action succeeds, go ahead and reboot the device from the maintenance recovery tool.
     

    User-added image
     

  6. The device can now reboot on the other sysroot partition with the reinstalled/reverted PAN-OS.

 

Note: Be aware that the reverted PAN-OS uses the configuration that was stored with that PAN-OS image.

 

owner: mvenkatesan



Additional Information


>How to SSH into Maintenance Mode
https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000ClQVCA0



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