Disk Upgrade Failure During Management Plane Upgrade

Problem

Disk Upgrade failed during airgap management plane upgrade procedure with the below error.

Environment

• Platform9 Edge Cloud - All Versions

Answer

• Check the localhost entry in the /etc/hosts file on the management plane VM.
• It should have correct entry for the localhost as mentioned below.

# cat /etc/hosts

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4

::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

Additional Information

• While troubleshooting of this issue it was observed that the entry in the /etc/hosts file was incorrect.
• During the restore operation the pf9deploy script tries connects to the MongoDB on the address 127.0.0.1 and port 27017.
• If this connections does not happen then it errors out with the below error and the management upgrade fails with the error mentioned earlier.

2021-11-09T16:42:32.866Z  info  INFO:pf9deploy.server.util.shell:| fatal: [airctl-1.pf9.localnet]: UNREACHABLE! => {"changed": false, "msg": "Connection timed out.", "unreachable": true}

• Try to check pf9deploy-prepare-restore.log file for the above mentioned error during troubleshooting.