就是安装完成了，现在执行 cd /usr/local/mysql/ 进入mysql安装目录分别执行下面命令：
chown -R mysql:mysql .
scripts/mysql_install_db --datadir=/data1/mysql --user=mysql
chown -R root .
cp support-files/mysql.server /etc/init.d/mysqld
然后还可以将mysqld添加至系统服务：
chkconfig --add mysqld # 添加至系统服务
chkconfig mysqld on # 设置开机自启动
现在如果启动可能会报错，原因是日志目录没有建立，默认是/var/log/mariadb/mariadb.log，后来也可以修改，现在执行： mkdir/var/log/mariadb 建立日志目录，然后执行： /etc/init.d/mysqld start 或者 systemctl start mysqld.service 都可以启动mysql服务
启动服务后，还不能马上进入mysql shell界面，原因是刚才编译时执行本地socket为：/tmp/mysql.sock但是查看/etc/my.cnf中配置的位置却是：/var/lib/mysql/mysql.sock，现在执行命令： ln -s /var/lib/mysql/mysql.sock /tmp/mysql.sock 建立软链接即可
2、配置MariaDB
#cd /appliction/mysql
#scripts/mysql_install_db --user=mysql --datadir=/appliction/mydata
复制配置文档
#cd /appliction/mysql/support-files/
#cp my-large.cnf /etc/my.cnf
创建启动脚本
# cd /appliction/mysql/support-files/
# cp mysql.server /etc/rc.d/init.d/mysqld
配置环境变量,方便直接输入mysql
# cat /etc/profile.d/mysql.sh
MYSQL_HOME=/appliction/mysql
export PATH=$MYSQL_HOME/bin:$PATH
#source /etc/profile.d/mysql.sh
启动数据库
# /etc/rc.d/init.d/mysqld start登陆数据库,不需要密码
报错rm -f /tmp/mysql.sock
# mysql
qld start
Reloading systemd: [ OK ]
Starting mysqld (via systemctl): [ OK ]
初始化数据库,此方式可以禁用空密码登陆，按照提示输入你需要的Y或者N
# mysql_secure_installation
设置mysql本地方式免密码登陆
# egrep -v "^$|#" /etc/my.cnf （增加了红色部分）
[client]
port= 3306
socket= /tmp/mysql.sock
[mysqld]
port= 3306
socket= /tmp/mysql.sock
basedir=/usr/local/mysql（安装数据库目录）
datadir=/home/mydata（数据存放目录）
skip-external-locking
key_buffer_size = 256M
max_allowed_packet = 1M
table_open_cache = 256
sort_buffer_size = 1M
read_buffer_size = 1M
read_rnd_buffer_size = 4M
myisam_sort_buffer_size = 64M
thread_cache_size = 8
query_cache_size= 16M
thread_concurrency = 8
log-bin=mysql-bin
binlog_format=mixed
server-id= 1
[mysqldump]
quick
max_allowed_packet = 16M
[mysql]
no-auto-rehash
user = root
password = 123456
host = 127.0.0.1
[myisamchk]
key_buffer_size = 128M
sort_buffer_size = 128M
read_buffer = 2M
write_buffer = 2M
[mysqlhotcopy]
interactive-timeout