Installing MariaDB in Nobara(Fedora):

$ sudo dnf install mariadb-server

$ sudo systemctl enable mariadb

$ sudo systemctl start mariadb

$ sudo mariadb-secure-installation

Error:

Enter current password for root (enter for none): 
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)

$ mysql -u root

mysql: Deprecated program name. It will be removed in a future release, use '/usr/bin/mariadb' instead