lower_case_table_names Settings in MySQL 8.0.12

Question

So far, I can get it to work with a workaround (I originally posted on askubuntu): by re-initializing MySQL with the new value for lower_case_table_names after its installation. The following steps apply to a new installation. If you have already data in a database, export it first to import it back later:

Install MySQL:

sudo apt-get update    
sudo apt-get install mysql-server -y

Stop the MySQL service:
```
sudo service mysql stop
```
Delete the MySQL data directory:
```
sudo rm -rf /var/lib/mysql
```

Recreate the MySQL data directory (yes, it is not sufficient to just delete its content):

sudo mkdir /var/lib/mysql    
sudo chown mysql:mysql /var/lib/mysql
sudo chmod 700 /var/lib/mysql

Add lower_case_table_names = 1 to the [mysqld] section in /etc/mysql/mysql.conf.d/mysqld.cnf.

Re-initialize MySQL with --lower_case_table_names=1:

sudo mysqld --defaults-file=/etc/mysql/my.cnf --initialize --lower_case_table_names=1 --user=mysql --console

Start the MySQL service:
```
sudo service mysql start
```

Retrieve the new generated password for MySQL user root:

sudo grep 'temporary password' /var/log/mysql/error.log

Change the password of MySQL user root either by:
```
sudo mysql -u root -p
```
and executing:
```
ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPa$$w0rd';
```
afterwards, OR by calling the “hardening” script anyway:
```
sudo mysql_secure_installation
```

After that, you can verify the lower_case_table_names setting by entering the MySQL shell:

sudo mysql -u root -p

and executing:

SHOW VARIABLES LIKE 'lower_case_%';

Expected output:

+------------------------+-------+
| Variable_name          | Value |
+------------------------+-------+
| lower_case_file_system | OFF   |
| lower_case_table_names | 1     |
+------------------------+-------+

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