Issue Cannot update from Plesk Obsidian 18.0.69

[Aspire]

Server operating system version

Ubuntu 22.04

Plesk version and microupdate number

Plesk Obsidian 18.0.69 #4

We installed a Plesk system from AWS marketplace about a year ago, but cannot update it.
The EMI was: Plesk Obsidian 'Bring Your Own License' (Ubuntu 22.04 aarch64) 20250430.0715-7917ca0b-ac94-416a-9357-1d45f6bf9b65

Update attempt returns:
There are no products for your operating system
( 'Ubuntu' 'Linux' '24.04' 'aarch64' ) available
from the selected source.

Because the reason for the update was to patch PHP 8.3.26 , I installed PHP 8.3.36 and switched Plesk over to it,

We have around 20 sites on that EC2 and all are running again, but it's a wee bit unstable. With the occassional MariaDB lockup and probably related timeouts.

It was rock-solid before, but before I go retuning it, I'd like to get Plesk updated.

What can I do form here?

 

[tessa67]

Hi,

Look at the error again: it says ‘Ubuntu’ ‘Linux’ ‘24.04’ ‘aarch64’, not 22.04. Plesk doesn’t have packages for that combo. Ubuntu 24.04 is only supported on x86-64, and Plesk has said in the forum that there are no plans for 24.04/26 on ARM. ARM support is supposed to end together with Ubuntu 22.04 in April 2027.

So first, check what your server really is:

cat /etc/os-release
uname -m
plesk version
grep -rhE “^(deb |URIs:|Suites:)” /etc/apt/sources.list /etc/apt/sources.list.d/

If it says 24.04: at some point the OS got upgraded (do-release-upgrade or apt), and Plesk is now on an unsupported platform. That could also explain the flakiness, since you’d have a mix of packages from both releases. Your options:

1. Roll back to an EBS snapshot/AMI from before the OS upgrade, if you have one. Downgrading Ubuntu isn’t really a thing.
2. Spin up a fresh Ubuntu 22.04 aarch64 instance and move everything over with the Plesk Migrator. That works, but only until April 2027.
3. Spin up an x86-64 instance with Ubuntu 24.04 and migrate with the Plesk Migrator. That’s the only long-term supported route.

If it says 22.04: then the installer is picking up 24.04 from somewhere else (leftover repo config maybe). Post the output of the commands above and we can dig further.

About the MariaDB lockups: I wouldn’t tune anything yet. Check the logs first:

journalctl -u mariadb --since “7 days ago” | tail -n 100
dmesg -T | grep -i -E “out of memory|oom”
free -h

If the OOM killer shows up there, that’s a good lead. It’s just a guess though, so look at the logs before changing anything.

One more question: where did you get PHP 8.3.36 from? Plesk’s own packages or a third-party repo? If it’s a third-party repo, it might be part of the problem.

Sources:

• https://support.plesk.com/hc/en-us/articles/20033524944663
• Question - Plesk Support for ARM (Ubuntu 24/26)

Regards
Tessa