How to Update OPNSense to a specific version

Two days ago, I updated my OPNSense to version 20.7.2.  Then I started experiencing issue with my connection.  My connection would cut off after a few hours and I could not get onto the firewall.  Luckily, I have a backup of my configuration so reinstalling the firewall should not be a big problem.

Now, I have this issue of bring the firewall up to date.  If I use the standard method to update the firewall, it will update it to the latest version, i.e. 20.7.2 which is the version I had problems with.  Hence, I need a way to bring my firewall to the last good version, e.g. 20.7.1.

After consulting the know-it-all Google, here is what I found.  On the firmware settings page, rather than using the default flavor, choose "(other)".  In the box underneath, specify the version you want to update to, e.g.

<major version>/MINT/<decimal version number>/OpenSSL

20.7/MINT/20.7.1/OpenSSL

Save the settings, and then press the "Check For Update" button as usual.  You now should get an update offer to the version you specified.

I hope I don't need to do this again in the future, but I guess this is something good to know.

ref: https://forum.opnsense.org/index.php?topic=9638.0

Clear temporary Windows Update installers

If you have problem to update Windows, e.g. it gives you 80072EFE error, it may be worthwhile to clear the Update Installers in your system and restart again. The instructions can be found at:

http://support.microsoft.com/kb/822798

Especially method 10 which tell you how to empty the software distribution folder.

After you clear the "cached" installers, you may want to restart you system before re-try the update services.