NSM On-Prem - upgrading to 2.6.0-HF1

This KB describes the upgrade path to 2.6.0-HF1

Here is supported upgrade path:

2.5.0-HF1 > 2.6.0-HF1

It is recommended to skip 2.6.0. In some cases, 2.5.0-HF1 > 2.6.0 may encounter GUI loading Issue, which has been resolved in 2.6.0-HF1.

If current NSM is version 2.6.0, it can be upgrade to 2.6.0-HF1:

2.6.0 > 2.6.0-HF1

If current NSM is earlier version, here is the upgrade path:

2.5.0 > 2.5.0 HF1 > 2.6.0 HF1

Note 1: 

It is recommended to do a backup before upgrade. Follow this KB:

https://www.sonicwall.com/support/knowledge-base/taking-backup-of-nsm-on-premise-before-upgrade/250228110920103

Note 2:

Backups may take excessive disk space, which may cause upgrade failure. It is recommended to delete all backups before upgrade, and create a new one after.