Ubuntu 22.04 LTS to Ubuntu 24.04 LTS upgrade

General Discussion
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Just to let anyone interested know that on the 29th August 2024, Ubuntu released the 1st update of 24.04.1 LTS, and servers can be upgraded from 22.04 LTS to 24.04 LTS via terminal.

The JumpCloud website has a pretty good “how to” section, if anyone is interested.

How to Upgrade from Ubuntu 22.04 LTS to Ubuntu 24.04 LTS - JumpCloud)

I have updated 6 servers so far (all using Virtualmin gpl), and each upgrade has taken about 20-30 minutes. I always back up offsite, just in case there are issues, but no need to re-install so far.

There were four issues I came across after the install’s were completed, and all were easily corrected, either via terminal, or in Virtualmin.

The 1st issue was that the Cyrus SASL Authentication Server would not start. This
needed to be linked between postfix and saslauthd. This was fixed in terminal by using the symbolic link as follows:
ln -s /var/spool/postfix/var/run/saslauthd /var/run/saslauthd
In the Virtualmin Servers status area, restart the SASL server, and at least for all six of my upgrades, the SASL server restarted with no issues.

The 2nd issue was that permissions need to be set/checked for the following folder (folder only)
/var/spool/postfix/var/run/saslauthd and set permissions to 0755 (- -rwxr-xr-x) (The folder permissions were initially set at 0710, which only allowed root access, not group access, such as postfix/sasl. Ubuntu 22.04 LTS had this correctly set to 0755)

The 3rd issue is not really an issue, but after the install, in the system
settings area of Virtualmin re-run the “re-check configuration”. At least for me, all
was well except I needed to setup the virtualmin repos again (version 24.04
tweeked the repos area, so old setup did not work)
From terminal, just type:
virtualmin setup-repos
This quickly re-linked the virtualmin repos.

And, the last issue was that on a few of my older servers, the FPM portion of PHP was not found. This was remedied by going to to the PHP Options section under Web Configuration, and re-saving. So if your web page is not accessible after upgrade, this may be why.

All in all, a fairly smooth transistion to the new kernel. Supposedly this LTS version is good for 12 years, instead of the usual 5.

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To add to this, upgrading always disables all third-party repositories. They’re not just picking on our repos.

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Just wondering at what point the virtualmin team advises moving up from 22.04 to 24.04 releases?

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Why would/should they do that?!

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Why should they?
This is above and well beyond the team’s responsibility.
It is your/your company’s/your organisation’s decision.
Just as is the decision on which box, VM supplier, OS it is run on.

I for one will upgrade my VM OS when I/my company choose to do so.

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Before 22.04 reaches end of life. This is always the same answer for all distros. Don’t run EOL distros, and if you want newer software use a newer distro.

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Personally, depending on the complexity, in the last year of support for the LTS version you are on, start planning and upgrade your server with no less than 6 months left on your LTS version.

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What i meant more so was to confirm virtualmin is ready for 24.04 and that the team recommends using 24.04 in a stable production environment. There was a time when 22.04 wasnt yet on the grade A supported os list even.

Obviously don’t run out of date software. My interests were based in wanting to know when it is safe to move forward with what would be a smooth (as smooth as upgrades can go - murpheys law not withstanding) and hopefully tested transition by the virtualmin team before they signed off on supporting that transition for others.

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You mean, is there a list of verified and working Grade A OS so you can then decide Virtualmin is ready for the upgrade.

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You mean OS Support | Virtualmin — Open Source Web Hosting Control Panel ?
But as a side note I have a vps that does nothing just my POC server which I am going to do a distribution upgrade to see how virstualmin handles it . I would guess the repros will need turning back on but I hope no serious errors

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Brace yourself getting hit with a super stupid question… It definitely is me sitting in my pitch-black office long after the stroke of midnight wondering: Where the heck did he restart Cyrus from within Virtualmin?

Please, enlighten and release me from being my own brain fart’s hostage and point me into the right direction… Please!

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I’ve seen this table, not only once. And I do recall that I even started one or another service there.

The table was collapsed in front of me - not a good excuse, I know, and a clear sign to go to bed immediately, crying myself to sleep and hoping this evidence of stupidity will magically vanish into thin air.

This is sooooooo embarrassing!!!

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Webmin also allows you to restart any service.

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