By default, the MySQL server on Ubuntu 18.04 will be installed version 5.7.

mysqladmin Ver 8.42 Distrib 5.7.25, for Linux on x86_64  
Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.  

Oracle is a registered trademark of Oracle Corporation and/or its  
affiliates. Other names may be trademarks of their respective  
owners.  

Server version 5.7.25-0ubuntu0.18.04.1  
Protocol version 10  
Connection Localhost via UNIX socket  
UNIX socket /var/run/mysqld/mysqld.sock  
Uptime: 44 min 19 sec  

Threads: 1 Questions: 50 Slow queries: 0 Opens: 115 Flushing tables: 1 Open tables: 24 Queries per second avg: 0.018  

We strongly recommend backing up or snapshot all your order data before working on the server

If you need to upgrade to MySQL version 8.0, do the following steps:
Remove MySQL server from ISPmanager section Abilities. With this action we remove ispmanager-pkg-mysql package and also remove MySQL server in Database Servers section

file

file

The beginning of the installation

Connect to the server via SSH and enter the command that updates the lists of packages from the repositories to get information about the latest versions of packages and their dependencies.

sudo apt update  

Enter a command that retrieves new versions of packages that exist on the server:

sudo apt upgrade  

Download the file using wget:

wget -c https://dev.mysql.com/get/mysql-apt-config_0.8.15-1_all.deb  
root@kvmde54-19861:~# wget -c https://dev.mysql.com/get/mysql-apt-config_0.8.15-1_all.deb  
--2020-06-01 14:03:09-- https://dev.mysql.com/get/mysql-apt-config_0.8.15-1_all.deb
Resolving dev.mysql.com (dev.mysql.com)... 137.254.60.11  
Connecting to dev.mysql.com (dev.mysql.com)|137.254.60.11|:443... connected.  
HTTP request sent, awaiting response... 302 Found  
Location: https://repo.mysql.com//mysql-apt-config_0.8.15-1_all.deb [following]  
--2020-06-01 14:03:10-- https://repo.mysql.com//mysql-apt-config_0.8.15-1_all.deb
Resolving repo.mysql.com (repo.mysql.com)... 23.44.197.55  
Connecting to repo.mysql.com (repo.mysql.com)|23.44.197.55|:443... connected.  
HTTP request sent, awaiting response... 200 OK  
Length: 35532 (35K) [application/x-debian-package]  
Saving to: 'mysql-apt-config_0.8.15-1_all.deb'  

mysql-apt-config_0.8.15-1_ 100%[========================================>] 34.70K --.-KB/s in 0.008s  

2020-06-01 14:03:10 (4.40 MB/s) - 'mysql-apt-config_0.8.15-1_all.deb' saved [35532/35532]  

To check that the file downloaded, type:

ls  
root@kvmde54-19861:~# ls  
mysql-apt-config_0.8.15-1_all.deb ubuntu-echo  

Next, unpack and install it:

sudo dpkg -i mysql-apt-config  

Next, a window will appear in which you should check that it is MySQL Server & Cluster (Currently selected: mysql-8.0)

file

file

Next, enter the following commands:

sudo apt update  
sudo apt upgrade  

Install MySQL server:

sudo apt install mysql-server  

A window will open in which you need to enter a new root password for MySQL (Ubuntu and MySQL passwords may be different)

file

Next, let's click Ok

In the window, where it says about new MySQL 8 Authentication - click Use Strong Password Encryption (Recommended)

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Next, we enter the command:

mysql_secure_installation  

Enter the MySQL password.

Further security questions can be answered as follows

root@kvmde54-19861:~# mysql_secure_installation  

Securing the MySQL server deployment.  

Connecting to MySQL using a blank password.  

VALIDATE PASSWORD COMPONENT can be used to test passwords  
and improve security. It checks the strength of password  
and allows the users to set only those passwords which are  
secure enough. Would you like to setup VALIDATE PASSWORD component?  

Press y|Y for Yes, any other key for No: N  
Please set the password for root here.  

New password  

Re-enter new password  
By default, a MySQL installation has anonymous user,  
allowing anyone to log into MySQL without having to have  
a user account created for them. This is intended only for  
testing, and to make the installation go a bit smoother.  
You should remove them before moving into a production  
environment.  

Remove anonymous users? (Press y|Y for Yes, any other key for No) : y  
Success.  


Normally, root should only be allowed to connect from  
'localhost'. This ensures that someone cannot guess at
the root password from the network.  

Disallow root login remotely? (Press y|Y for Yes, any other key for No) : y  
Success.  

By default, MySQL comes with a database named 'test' that  
anyone can access. This is also intended only for testing,  
and should be removed before moving into a production  
environment.  


Remove test database and access to it? (Press y|Y for Yes, any other key for No) : y  
 - Dropping test database...
Success.  

 - Removing privileges on test database...
Success.  

Reloading the privilege tables will ensure that all changes  
made so far will take effect immediately.  

Reload privilege tables now? (Press y|Y for Yes, any other key for No) : y  
Success.  

All done! 

To check that MySQL is working, type:

systemctl status mysql  
root@kvmde54-19861:~# systemctl status mysql  
Mysql.service - MySQL Community Server  
   Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: enabled)
  Drop-In: /etc/systemd/system/mysql.service.d
           └─nofile.conf
   Active: active (running) since Mon 2020-06-01 14:15:34 CEST; 1min 49s ago
     Docs: man:mysqld(8)
           http://dev.mysql.com/doc/refman/en/using-systemd.html
 Main PID: 31770 (mysqld)
   Status: "Server is operational"
    Tasks: 39 (limit: 1108)
   CGroup: /system.slice/mysql.service
           └─31770 /usr/sbin/mysqld

Jun 01 14:15:33 kvmde54-19861.fornex.org systemd[1]: Starting MySQL Community Server...  
Jun 01 14:15:34 kvmde54-19861.fornex.org systemd[1]: Started MySQL Community Server.  

Enter a command to check that MySQL 8.0 is installed, not MySQL5.*:

mysqladmin -u root -p version  
root@kvmde54-19861:~# mysqladmin -u root -p version  
Enter password  
mysqladmin Ver 8.0.20 for Linux on x86_64 (MySQL Community Server - GPL)  
Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.  

Oracle is a registered trademark of Oracle Corporation and/or its  
its affiliates. Other names may be trademarks of their respective  
owners.  

Server version 8.0.20  
Protocol version 10  
Connection Localhost via UNIX socket  
UNIX socket /var/run/mysqld/mysqld.sock  
Uptime: 2 min 1 sec  

Threads: 2 Questions: 11 Slow queries: 0 Opens: 128 Flushing tables: 3 Open tables: 49 Queries per second avg: 0.090

MySQL version upgraded to version 8.0.20

Now in the control panel, under Abilities let's install MySQL-server.

file

After the installation is complete, we will see that MySQL version is changed to 8.0.20.

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There will also be a server in the DB Servers section.

file


If you have already tried to install MySQL and had an error at some point, run these commands to start the process again:

sudo -i  
service mysql stop  
killall -KILL mysql mysqld_safe mysqld  
apt-get --yes purge mysql-server mysql-client  
apt-get --yes autoremove --purge  
apt-get autoclean  
deluser --remove-home mysql  
delgroup mysql  
rm -rf /etc/apparmor.d/abstractions/mysql /etc/apparmor.d/cache/usr.sbin.mysqld /etc/mysql /var/lib/mysql /var/log/mysql* /var/log/upstart/mysql.log* /var/run/mysqld  
updatedb  
exit  

If you have configuration difficulties or have additional questions, you can always contact our support team via Ticket system.

Updated Nov. 10, 2024