Update latest ISO with Up2date packages

Install using the 9.713 media, Up2Date it, using the file you can download from SOPHOS (astaro.com) to the latest. There is currently no media for 9.714.  

(At least not yet)

Restoring backup - you can restore a backup from say, 9.713 to a 9.714 install, but you cannot restore a 9.714 to an earlier version.

Thank, Amodin!

I was trying to avoid going that route but it seems that's the only course of action unless there's an undocumented way to slipstream.

Well if you are not having any issues with your existing installation, just apply the Up2Date file.  You don't have to wipe it out and start over. You can do it manually, or wait for the Up2Date server to push out your update to you.  Mine sometimes works, sometimes doesn't work and I just do it myself the manual way.

If starting over, then my first post is the quickest way. 

Sometimes I get big CPU spikes after an Up2Date is applied. The only remedy that I know of is to reinstall. That always fixes the issue.

Here's a thread about it.

Also, I have two identical PC's. One is the currently running UTM with the CPU spikes. I'm trying to install and restore on the other PC, offline, so that I can just swap the boxes to avoid downtime.

Yeah, if you are using the Core 2 Duo in your signature, you will most likely see things like this - that's an old one! At least it's a 64-bit architecture.

This evening, I purchased a "like new" Dell Optiplex 3070 as an upgrade. Guess what... It appears to support only UEFI and legacy external devices. The 3070 will boot from the USB installation drive and I can install Sophos UTM on to the internal HDD but it will not boot from the HDD! Never seen this before. I thought all newer PC supported both UEFI and legacy (internal and external).

UTM and XG both don't support UEFI unfortunately.  It still blows my mind why they do not. 

UTM and XG both don't support UEFI unfortunately.  It still blows my mind why they do not.