ubuntu mariadb reinstall

sudo apt-get remove "mariadb-*"
sudo apt remove galera-4
sudo apt remove galera-3
sudo apt autoremove
sudo apt install wget

wget https://downloads.mariadb.com/MariaDB/mariadb_repo_setup

echo "d4e4635eeb79b0e96483bd70703209c63da55a236eadd7397f769ee434d92ca8 mariadb_repo_setup" \
    | sha256sum -c -

chmod +x mariadb_repo_setup

sudo ./mariadb_repo_setup \
   --mariadb-server-version="mariadb-10.3"

sudo apt update
sudo apt install mariadb-server mariadb-backup -y



sudo rm -rf /var/lib/mysql
sudo apt install mariadb-server
mysql_install_db --user=mysql --basedir=/usr --datadir=/var/lib/mysql
mysql_secure_installation