Issue Updated MariaDB from 10.6 to 12.3; Plesk update now reports errors. "ERROR while trying to detect MySQL service name"

[LTUser]

Server operating system version

Ubuntu 22.04.5 LTS

Plesk version and microupdate number

Plesk Obsidian 18.0.82 Web Pro Edition

MariaDB/MySQL is running without any issues; however, Plesk updates are no longer working.

/opt/psa/admin/bin/autoinstaller --select-product-id plesk --select-release-current --show-upgradable-components --enable-xml-output

"**** Product prep-install started.
Create user 'psaadm' and group 'psaadm'
Group 'psaadm' already exists
Checking for the user 'psaadm'...
User 'psaadm' already exists
Create group 'swkey-data'
Group 'swkey-data' already exists
Trying to add supplementary group 'swkey-data' for user 'psaadm'... already there
Create group 'psaserv'
Group 'psaserv' already exists
Trying to add supplementary group 'psaserv' for user 'psaadm'... already there
Create group 'psacln'
Group 'psacln' already exists
Trying to got legacy variables... done
config updated
===> Updated /etc/psa/psa.conf
Trying to save legacy variables... done

ERROR while trying to detect MySQL service name

Check the error reason (see log file: /var/log/plesk/install/plesk_18.0.82_installation.log), fix and try again
***** problem report *****
ERROR while trying to detect MySQL service name
Bootstrapper has finished action (exec time: 2 sec.): parent_name='panel', sequence='prep', stage='execute', sequence_order='0', operation='install', exec_cmd='/opt/psa/bootstrapper/pp18.0.82-bootstrapper/bootstrapper.sh prep-install BASE'', m_arch='', exit code: 1, output:
**** Product prep-install started.
Create user 'psaadm' and group 'psaadm'
Group 'psaadm' already exists
Checking for the user 'psaadm'...
User 'psaadm' already exists
Create group 'swkey-data'
Group 'swkey-data' already exists
Trying to add supplementary group 'swkey-data' for user 'psaadm'... already there
Create group 'psaserv'
Group 'psaserv' already exists
Trying to add supplementary group 'psaserv' for user 'psaadm'... already there
Create group 'psacln'
Group 'psacln' already exists
Trying to got legacy variables... done
config updated
===> Updated /etc/psa/psa.conf
Trying to save legacy variables... done

ERROR while trying to detect MySQL service name

***** problem report *****
ERROR while trying to detect MySQL service name

[2026-10-29 11:45:24.122156] Bootstrapper has finished action (exec time: 0 sec.): parent_name='PLESK_18_0_82', sequence='prep', stage='rollback', sequence_order='1', operation='install', exec_cmd='rm -f /run/psa-bootstrapper-mode.flag; rm -f /run/plesk-panel-maintenance-mode.flag; rm -f /run/plesk-panel-upgrade-failure.flag; :'', m_arch='', exit code: 0, output: ~empty

 

[LTUser]

root@work:~# systemctl status mysql
● mariadb.service - MariaDB 12.3.3 database server
Loaded: loaded (/etc/systemd/system/mariadb.service; enabled; vendor preset: enabled)
Drop-In: /lib/systemd/system/mariadb.service.d
└─90-performance-booster.conf
/etc/systemd/system/mariadb.service.d
└─migrated-from-my.cnf-settings.conf
/etc/systemd/system/mysql.service.d
└─override.conf
Active: active (running) since Thu 2026-10-29 11:54:45 CET; 43min ago
Docs: man:mariadbd(8)
https://mariadb.com/kb/en/library/systemd/
Process: 1727 ExecStartPre=/usr/bin/install -m 755 -o mysql -g root -d /var/run/mysqld (code=exited, status=0/SUCCESS)
Process: 1818 ExecStartPre=/bin/sh -c systemctl unset-environment _WSREP_START_POSITION (code=exited, status=0/SUCCESS)
Process: 1848 ExecStartPre=/bin/sh -c [ ! -e /usr/bin/galera_recovery ] && VAR= || VAR=`cd /usr/bin/..; /usr/bin/galera_recovery`; [ $? -eq 0 ] && >
Process: 2169 ExecStartPost=/bin/sh -c systemctl unset-environment _WSREP_START_POSITION (code=exited, status=0/SUCCESS)
Process: 2171 ExecStartPost=/etc/mysql/debian-start (code=exited, status=0/SUCCESS)
Main PID: 1870 (mariadbd)
Status: "Taking your SQL requests now..."
Tasks: 29 (limit: 38327)
Memory: 4.0G
CPU: 2min 1.548s
CGroup: /system.slice/mariadb.service
└─1870 /usr/sbin/mariadbd

Any Help?

 

[LTUser]

Checking the structure of the Plesk database

Wrong attributes for the column 'content' in the table
'CopilotMessages': ................................................ [ERROR]
- The attribute 'type' value mismatch: mediumtext in the original
schema and text in the Plesk database.
Creating a database dump ........................................
Execution failed.
Command: mysqldump.sh
Arguments: Array
(
[0] => --title
[1] => preresolve
)

Details:
***** problem report *****
ERROR while trying to detect MySQL service name

Check the error reason (see log file: /var/log/plesk/mysqldump.log), fix and try again