Downgrading Enterprise Manager

Downgrading ExacqVision Enterprise Manager from 23.06.0.0 to any version lower will prevent users from accessing the ExacqVision Client software due to the migration to AES-128 from ARC4 Encryption methods used on earlier ExacqVision Enterprise Manager versions.

Downgrading or “Rolling Back” Enterprise Manager software from versions 23.06.0.0 and up to a lower version is not recommended due to this encryption migration.

Note: It is advised to take an Enterprise Manager backup of your system prior to attempting any upgrades/downgrades. Best Practices would include taking a database back up of PostgreSQL or Microsoft SQL.

Product

ExacqVision Enterprise Manager versions 23.06.0.0 and higher subsequently released versions.

Steps to Reproduce

Downgrade ExacqVision Enterprise Manager software to any prior version from 23.06.0.0

Expected Results

This downgrade should complete reflecting the new version, and all functionality should remain intact.

Actual Results

ExacqVision Client users will receive the error: “Invalid Username/Password account locked or disabled” upon trying to log in after the downgrade has been performed.

Solution

Do not downgrade from ExacqVision Enterprise Manager versions 23.06.0.0 to a lower version. If you find this needs to happen for an unforeseen reason it is recommended to uninstall the current version of Enterprise Manager 23.06.0.0 or higher, followed by installing the desired legacy version which will require rebuilding the configuration.

Issue

Downgrading exacqVision Enterprise Manager from 19.09 to any version lower will fail due to the migration from Python2 to Python3. Manual steps will be required in order to downgrade to 19.06.

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Note: Instructions below provide a downgrade path to 19.06. If you need to downgrade beyond that, follow these instructions, then you can downgrade to previous versions just by running the appropriate installer.

Steps to Downgrade

Download the appropriate installer for your environment:

Download the “new_south_manifest.py” file.

Copy the “new_south_manifest.py” file to the appropriate directory for your environment:

Windows: C:\exacqVisionESM\EnterpriseSystemManager
Linux: /usr/local/exacq/esm

Run the downloaded installer.

If using Windows:

Delete the following file: C:\exacqVisionESM\EnterpriseSystemManager\zmq\libzmq.cp37-win32.pyd
Restart the Importer service.

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Downgrading-Enterprise-Manager-to-19.06-and-below.pdf