一、下载mysql二进制安装包

mysql官网:

https://dev.mysql.com/downloads/mysql/

由于国内网络问题,个人建议使用国内开源镜像站下载:

http://mirrors.163.com/mysql/Downloads/MySQL-8.0/
http://mirrors.sohu.com/mysql/MySQL-8.0/
http://mirrors.ustc.edu.cn/mysql-ftp/Downloads/MySQL-8.0/

下载:mysql-8.0.13-linux-glibc2.12-x86_64.tar.xz

 

二、mysql依赖于libaio

yum search libaio
yum install libaio

  

三、解压和重命名

我们默认把mysql8安装到/data/mysql8目录下,这个目录可以随意指定。

tar xf mysql-8.0.13-linux-glibc2.12-x86_64.tar.xz
mv mysql-8.0.13-linux-glibc2.12-x86_64 /data/mysql8

  

四、创建mysql用户名和用户组

useradd -s /sbin/nologin -M mysql

  

五、把默认/etc/my.cnf重命名或删除

centos7默认会有一个/etc/my.cnf文件,为了不影响安装,可以直接删除或重命名。

mv /etc/my.cnf /etc/my.cnf.bak

rm /etc/my.cnf

  

六、创建my.cnf文件

cd /data/mysql8
vi my.cnf

填写如下内容:

[mysqld]
port = 3306
basedir = /data/mysql8
datadir = /data/mysql8/data
max_connections = 1024
character-set-server = utf8
default-storage-engine = INNODB
server_id = 1
socket = /data/mysql8/mysql.sock
pid-file = /data/mysql8/mysql.pid
slow_query_log = 1
slow_query_log_file = /data/mysql8/log/mysql-slow.log
long_query_time = 10
log-error = /data/mysql8/log/mysql-err.log
log-bin = /data/mysql8/log/mysql-bin
user = mysql 
default_authentication_plugin = mysql_native_password

sql_mode = NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
 
[mysql]
default-character-set = utf8
 
[client]
port = 3306
socket = /data/mysql8/mysql.sock
default-character-set = utf8

创建一个软链接

ln -s /data/mysql8/my.cnf /etc/my.cnf

  

七、创建目录,修改目录所有者,初始化mysql数据库

mkdir /data/mysql8/log
mkdir /data/mysql8/data
chown -R mysql.mysql /data/mysql8
/data/mysql8/bin/mysqld --initialize --user=mysql --basedir=/data/mysql8 --datadir=/data/mysql8/data

  

八、把启动文件复制到/etc/init.d/目录下

cp support-files/mysql.server /etc/init.d/mysql
vi /etc/init.d/mysql

修改46,47行的basedir和datadir

basedir= /data/mysql8
datadir= /data/mysql8/data

修改63-82行,把路径改成自已的mysql安装路径

mysqld_pid_file_path=
if test -z "$basedir"
then
  basedir=/data/mysql8
  bindir=/data/mysql8/bin
  if test -z "$datadir"
  then
    datadir=/data/mysql8/data
  fi
  sbindir=/data/mysql8/bin
  libexecdir=/data/mysql8/bin
else
  bindir="$basedir/bin"
  if test -z "$datadir"
  then
    datadir="$basedir/data"
  fi
  sbindir="$basedir/sbin"
  libexecdir="$basedir/libexec"
fi

  

九、启动mysql服务

service mysql start

  

十、登陆mysql,修改root用户密码

mysql初始化时会自动生成一个密码,可以在log-error指定的错误日志中查看

mysql -u root -p
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '新密码';
flush privileges;  

如果报错:

mysql: error while loading shared libraries: libtinfo.so.5: cannot open shared object file: No such file or directory

因为使用 Linux - Generic 安装,使用如下命令:

sudo ln -s /usr/lib64/libtinfo.so.6.1 /usr/lib64/libtinfo.so.5

  

十一、创建可远程连接的用户

create user '用户名'@'主机' identified with mysql_native_password by '密码';
grant all privileges on *.* to '用户名'@'主机';
flush privileges;

  

十二、添加环境变量

vi /etc/profile

添加如下内容:

export PATH=$PATH:/data/mysql8/bin

使配置生效

source /etc/profile

  

posted on 2018-12-22 22:26  怀素真  阅读(267)  评论(0编辑  收藏  举报