Upgrading to Ubuntu 20, *how* to back up?

[Peter Flynn]

On 26/04/2020 10:10, Bo Berglund wrote:
[..]
> Yes I *have* made system changes:
> 
> Installed using sudo apt install:
> - ubuntu-mate-desktop
> - openvpn
> - openssh-server
> - gnome-tweaks
> - libcanberra-gtk-module
> - pm-utils
> - vnc4server

Packages installed from repos don't matter because you will need to 
reinstall them in the new versions that match the new OS version.

> Sudo edited control files:
[...]
> There are probably more than these (which I got from history)...

Those definitely do matter, but if the changes are just config files in 
/etc, I'd just copy the modified versions to a separate USB stick and 
re-do the edits after installation upgrade. You need to do them by hand 
because sometimes the file format or the syntax of config files changes, 
so you can't just copy them back and hope for the best.

> I found a backup utility in the Mate application menu
> Accessories/Backups
[...]
> Is this utility a tool that comes with Ubuntu or is it from the Mate
> Desktop installation?

I don't run Mate so I'm not familiar with it...anyone else know?

P