Here we will write a Shell script to upgrade MySQL 5.7 to 8.
#!/bin/bash # Stop MySQL 5.7 server sudo systemctl stop mysql # Backup MySQL 5.7 data sudo mkdir /var/lib/mysql_backup sudo cp -R /var/lib/mysql/* /var/lib/mysql_backup # Remove MySQL 5.7 sudo apt-get remove mysql-server mysql-client mysql-common # Add MySQL 8.0 repository sudo wget -c https://dev.mysql.com/get/mysql-apt-config_0.8.13-1_all.deb sudo dpkg -i mysql-apt-config_0.8.13-1_all.deb # Update repository sudo apt-get update # Install MySQL 8.0 sudo apt-get install mysql-server # Start MySQL 8.0 server sudo systemctl start mysql # Upgrade MySQL data sudo mysql_upgrade -u root -p # Clean up sudo rm mysql-apt-config_0.8.13-1_all.deb sudo rm -rf /var/lib/mysql_backup
How it works:
This script does the following:
- Stops the MySQL 5.7 server.
- Backs up the MySQL 5.7 data to
/var/lib/mysql_backup
. - Removes MySQL 5.7 using
apt-get
. - Adds the MySQL 8.0 repository and updates it.
- Installs MySQL 8.0 using
apt-get
. - Starts the MySQL 8.0 server.
- Upgrades the MySQL data using
mysql_upgrade
. - Cleans up the backup and MySQL 8.0 repository files.
Note that this script assumes that you are running Ubuntu or a similar Linux distribution that uses apt-get
for package management. If you are using a different distribution or package manager, you may need to modify the script accordingly. Additionally, make sure to back up your MySQL data before running the script, as the upgrade process may result in data loss.