MariaDB忘记root密码，修改root密码

1.在MariaDB配置文件/etc/my.cnf的[mysqld]配置中加入一行：skip-grant-tables,步骤如下：

# vi /etc/my.cnf

[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
# Settings user and group are ignored when systemd is used.
# If you need to run mysqld under a different user or group,
# customize your systemd unit file for mariadb according to the
# instructions in http://fedoraproject.org/wiki/Systemd
init_connect='SET collation_connection = utf8_unicode_ci'
init_connect='SET NAMES utf8'
character-set-server=utf8
collation-server=utf8_unicode_ci
skip-character-set-client-handshake
# skip-grant-tables
[mysqld_safe]
log-error=/var/log/mariadb/mariadb.log
pid-file=/var/run/mariadb/mariadb.pid

#
# include all files from the config directory
#
!includedir /etc/my.cnf.d

skip-grant-tables　　　　#加入这一行

2.重启服务：

systemctl restart mariadb

3.进入MariaDB修改root密码,步骤如下：

4.将配置文件/etc/my.cnf [mysqld]中的skip-grant-tables注释掉，重启mysql服务即可：