Upgrade Debian 10 to 11 on old Virtualmin repo

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1

Hello,

I see that Debian 11 is in the list of grade A eligible systems, so I am thinking of upgrading my system.

I upgraded from Debian 9 to 10 a few months ago without incident.

I should point out that I only have one server and can’t take a secondary one to simplify things, and I want to minimise downtime (what I achieved between 9 and 10).

Technically, I’m not too worried about debian, but I am a bit more apprehensive about virtualmin, what would be the safest way to upgrade?

Apart from scrupulously following the official recommendations (Chapter 4. Upgrades from Debian 10 (buster)) and paying attention to configuration conflicts, what should we think about at Virtualmin level?

Is it better to remove the Virtualmin sources during the upgrade and then add them back?

I have the following sources:

deb http://software.virtualmin.com/vm/6/gpl/apt virtualmin-buster main
deb http://software.virtualmin.com/vm/6/gpl/apt virtualmin-universal main

I understand that there is no Release File for Bullseye in the old repo.

Should I use the old repo with virtualmin-buster main on Bullseye or should I switch to the new VM7 repo?
And in this case, it would be ? :
deb https://software.virtualmin.com/vm/7/gpl/apt virtualmin main
I think we need to use a certificate for this repo?

Or do I have to restart the installation script after the update?

Thank you in advance for your help.

2

Don’t change anything.

You’re fine with the Virtualmin 6 repos, and the virtualmin-buster repo only has one binary package that is also is the same one found in the Virtualmin 7 apt repo (which is generic for all supported distros now, we no longer distinguish between Ubuntu/Debian and versions, since there’s only one binary and it’s a very simple one that has no dependencies that would cause problems).