rahmatdcc.blogspot.com: April 2023

Install Mysql 5.5 ubuntu server 16

10.03 | Labels: Mysql, Ubuntu

Automatically uninstall mysql

sudo apt-get autoremove mysql* --purge
sudo apt-get remove apparmor

Download version 5.5.51 from MySQL site

wget https://dev.mysql.com/get/Downloads/MySQL-5.5/mysql-5.5.56-linux-glibc2.5-x86_64.tar.gz

Add mysql user group
```
sudo groupadd mysql
```
Add mysql (not the current user) to mysql user group
```
sudo useradd -g mysql mysql
```

Extract to /usr/local

sudo tar -xvf mysql-5.5.56-linux-glibc2.5-x86_64.tar.gz /usr/local/

Create mysql folder in /usr/local by moving the untarred folder
```
cd /usr/local
sudo mv mysql-5.5.49-linux2.6-x86_64 mysql
```
Set mysql directory owner and user group
```
cd mysql
sudo chown -R mysql:mysql *
```
Install the required lib package (works with 5.6 as well)
```
sudo apt-get install libaio1
```

Execute mysql installation script

sudo scripts/mysql_install_db --user=mysql

Set mysql directory owner from outside the mysql directory
```
sudo chown -R root .
```
Set data directory owner from inside mysql directory
```
sudo chown -R mysql data
```

Copy the mysql configuration file

sudo cp support-files/my-medium.cnf /etc/my.cnf (mysql 5.5)
sudo cp support-files/my-default.cnf /etc/my.cnf (mysl 5.6)

Start mysql

sudo bin/mysqld_safe --user=mysql &
sudo cp support-files/mysql.server /etc/init.d/mysql.server

Initialize root user password

sudo bin/mysqladmin -u root password '[your new password]'

Add mysql path to the system

sudo ln -s /usr/local/mysql/bin/mysql /usr/local/bin/mysql

Enable myql on startup

sudo update-rc.d -f mysql.server defaults

Disable mysql on startup (Optional)

sudo update-rc.d -f mysql.server remove

REBOOT!
Now directly use the command below to start mysql if it hasn’t
```
sudo service start mysql -u root -p
```

09.18 |

Step by step remove mysql from Ubuntu Server:

sudo systemctl status mysql
sudo systemctl stop mysql
sudo systemctl status mysql
sudo apt purge mysql-server*
sudo apt purge mysql-server mysql-client mysql-common mysql-server-core-* mysql-client-core-*
ls /etc/mysql
sudo ls /var/lib/mysql
sudo rm -r /etc/mysql /var/lib/mysql
sudo rm -r /var/log/mysql
sudo apt autoremove