CentOS 安装 MySQL8

@Linux

官网：https://dev.mysql.com/doc/refman/8.0/en/binary-installation.html

个人博客：https://www.xingchenw.cn/article/179

博客园：http://www.cnblogs.com/guanshanmao/p/9233898.html

CSDN：https://blog.csdn.net/xintingandzhouyang/article/details/80956348

yum安装

1. wget https://dev.mysql.com/get/mysql80-community-release-el7-1.noarch.rpm
2. rpm -ivh mysql80-community-release-el7-1.noarch.rpm
3. yum install mysql-server -y
4. grep "temporary password" /var/log/mysqld.log
5. mysql -u root -p
6. alter user 'root'@'localhost' identified by '新密码';

Generic Binaries安装

下载地址：https://dev.mysql.com/downloads/mysql/

Select Operating System：Linux-Generic

Select OS Version：Linux - Generic (glibc 2.12) (x86, 64-bit)

Select Package：Compressed TAR Archive

上传目录：/usr/local/src

安装目录：/usr/local/mysql

//卸载centos7中自带的mariadb

rpm -qa|grep mariadb
rpm -e --nodeps 文件名

//添加用户组

groupadd mysql
useradd -r -g mysql -s /bin/false mysql

//安装依赖

yum install libaio-devel numactl-devel -y

//修改配置

vim /etc/my.cnf

　　[mysqld]
　　datadir = /usr/local/mysql/data
　　socket = /tmp/mysql.sock

　　[mysqld_safe] 
　　log-error = /usr/local/mysql/error.log 
　　pid-file = /usr/local/mysql/mysql.pid

//修改权限，不然MySQL会忽略配置文件
chmod 644 /etc/my.cnf

//下载，解压

//进入压缩包目录
cd /usr/local/src
tar xvf mysql-8.0.13-linux-glibc2.12-x86_64.tar.xz

//拷贝到工作区
mv mysql-8.0.13-linux-glibc2.12-x86_64 /usr/local/mysql
cd /usr/local/mysql

//创建文件

//(明明设置了所有权，但还是报错，只好提前创建好)

log-error set to '/usr/local/mysql/error.log', however file don't exists. Create writable for user 'mysql'.

touch error.log

//安装

chown -R mysql:mysql /usr/local/mysql
bin/mysqld --initialize --user=mysql #记录随机密码root@localhost: qe#hwXNF(49u
chown -R mysql:mysql /usr/local/mysql
bin/mysql_ssl_rsa_setup
bin/mysqld_safe --user=mysql &

//启动

support-files/mysql.server start
//肯定会报错的，搞不懂
//Starting MySQL... ERROR! The server quit without updating PID file (/usr/local/mysql/data/VM_0_13_centos.pid).

ps aux|grep mysql
#mysql    20267  0.4 19.2 1368908 369860 pts/2  Sl   11:07   2:20 /usr/local/mysql/bin/mysqld 
kill 20267

//登录，修改密码

bin/mysql -u root -p

alter user 'root'@'localhost' identified by '新密码';