5.7############################..............................................................................................]
Thefile /var/lib/mysql/debian-5.7.flag indicated a
version that cannot automatically be upgraded. Therefore the
previous data directory will be renamed to/var/lib/mysql-5.7and
a new data directory will be initialized at/var/lib/mysql.
Please manually export/import your data (e.g. with mysqldump) ifneeded.
invoke-rc.d: could not determine current runlevel
Unpacking mariadb-server-10.0 (10.0.38-0ubuntu0.16.04.1) ...
Selecting previously unselected package mariadb-server.##############################.......................................................................................................]
Preparing to unpack .../mariadb-server_10.0.38-0ubuntu0.16.04.1_all.deb ...
Unpacking mariadb-server (10.0.38-0ubuntu0.16.04.1) ...#################################....................................................................................................]
Processing triggersfor man-db (2.7.5-1) ...#################################################...............................................................................................]
Processing triggersfor systemd (229-4ubuntu21.2) ...
Processing triggersfor ureadahead (0.100.0-19) ...
Setting up libdbd-mysql-perl (4.033-1ubuntu0.1) ...################################################.........................................................................................]
Setting up mariadb-client-core-10.0 (10.0.38-0ubuntu0.16.04.1) ...#######################################...................................................................................]
Setting up mariadb-client-10.0 (10.0.38-0ubuntu0.16.04.1) ...##################################################.............................................................................]
Setting up mariadb-server-core-10.0 (10.0.38-0ubuntu0.16.04.1) ...##################################################........................................................................]
Setting up mariadb-server-10.0 (10.0.38-0ubuntu0.16.04.1) ...#############################################################..................................................................]
Installing new version of configfile /etc/apparmor.d/usr.sbin.mysqld ...
Installing new version of configfile /etc/init.d/mysql ...
Installing new version of configfile /etc/logrotate.d/mysql-server ...
Installing new version of configfile /etc/mysql/debian-start ...
invoke-rc.d: could not determine current runlevel############################################################################...............................................................]*Stopping MariaDB database server mysqld [ OK ]
Setting up mariadb-server (10.0.38-0ubuntu0.16.04.1) ...########################################################################............................................................]
Processing triggersfor systemd (229-4ubuntu21.2) ...#################################################################################......................................................]
Processing triggersfor ureadahead (0.100.0-19) ...of script `mysql'overrides LSB defaults (0 1 6).
root@PC-RENGUOQIANG:/etc/init.d#
mysqladmin-uroot -p root
mysql-uroot -proot
SET passwordfor 'root'@'localhost'=password('root');
MariaDB [mysql]> selectuser, plugin from mysql.user;+------+-------------+
| user | plugin |
+------+-------------+
| root | unix_socket |
+------+-------------+
1 row in set (0.00sec)
update mysql.user set authentication_string=PASSWORD('root'), plugin='mysql_native_password' where user='root';
flush privileges;