Unable to upgrade system - Existing upgrade file '{ID}.progress' detected

Subject: 

As of QuantaStor 5.3.0.074, we introduced a new way of upgrading QuantaStor via the WUI. Some users have reported that they cannot upgrade, as it reports an error. Here is an example:

Existing upgrade progress file '7fedf730-ee9d-a4a5-4a4c-916eb24a4947.progress' detected, indicating there is already an upgrade in progress. [err=1]

This error will appear when attempting to upgrade using the WUI, and will not upgrade the system.

Detail:

The issue is caused due to the '*.progress' file in /var/tmp/upgrade, which prevents any further upgrades from occurring. The resolution is to delete the file. It is safe to delete this file and doesn't require a restart.

To delete the file, perform the following command via an SSH session. Replace {ID} with the ID that is displayed in the error in the WUI.

1. sudo rm /var/tmp/upgrade/{ID}.progress

If you have any further issues, or need additional help with an upgrade, please contact OSNEXUS support.