Linux安装MySQL

安装分为两种方式:

一、rpm安装

1.1 首先查看服务器的版本

cat /proc/version

 

 然后下载对应版本的rpm安装包

1.2 

二、tar.gz包安装

2.1 首先上传tar.gz包到服务器,并解压,

tar -zxvf  

 

如下图所示:

 

 

 2.2 查看是否安装MySQL及相关的

rpm -qa | grep mysql
rpm -qa | grep mariadb 

如果存在,则进行卸载

rpm -e mysql-libs-5.1.52-1.el6_0.1.x86_64  // 普通删除模式
rpm -e --nodeps mysql-libs-5.1.52-1.el6_0.1.x86_64  // 强力删除模式,如果使用上面命令删除时,提示有依赖的其它文件,则用该命令可以对其进行强力删除

2.3 安装MySQL

2.3.1  添加系统mysql组和mysql用户

检查mysql组和用户是否存在,如无创建,下面的存在的情况

cat /etc/group | grep mysql
### 
mysql:x:1001:

cat /etc/passwd | grep mysql
###
mysql:x:995:1001::/home/mysql:/bin/bash

如果不存在,则进行创建

groupadd mysql
useradd -r -g mysql mysql
 
#useradd -r参数表示mysql用户是系统用户,不可用于登录系统

2.3.2 安装数据库

创建Data目录:

 

 

 给目录赋予权限

chown -R mysql.mysql  /data/mysql/mysql-5.7.29 

 

 

 在./support-files目录下创建my_default.cnf ,内容如下(目录改为自己的):

# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html
# *** DO NOT EDIT THIS FILE. It's a template which will be copied to the
# *** default location during install, and will be replaced if you
# *** upgrade to a newer version of MySQL.
 
 
[mysqld]
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES 
 
basedir = /data/mysql/mysql-5.7.29
datadir = /data/mysql/mysql-5.7.29/data
port = 3306
socket = /tmp/mysql.sock
character-set-server=utf8
 
log-error = /data/mysql/mysql-5.7.29/data/mysqld.log
pid-file = /data/mysql/mysql-5.7.29/data/mysqld.pid

拷贝,如果提示是否覆盖,(备份后覆盖) y

cp support-files/my_default.cnf /etc/my.cnf

 初始化 mysqld(目录改为自己的)

./bin/mysqld --initialize --user=mysql --basedir=/data/mysql/mysql-5.7.29/ --datadir=/data/mysql/mysql-5.7.29/data/ 

 

 

 初始化完成之后,查看日志,然后拷贝密码:

/data/mysql/mysql-5.7.29/data/mysqld.log

 

 

 设置脚本开机启动

cp support-files/mysql.server /etc/init.d/mysql
service mysql start      // 启动MySQL服务
如果是升级mysql,记得kill之前的mysql,然后启动新的mysql

 

 进入MySQL,修改密码:

[root@VM_0_6_centos bin]# cd /data/mysql/mysql-5.7.29/bin/
[root@VM_0_6_centos bin]# ./mysql -u root -p
Enter password: 

 

mysql> set password=password('beishang886');
Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> grant all privileges on *.* to root@'%' identified by 'beishang886';
Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql> 

安装成功,

 

 

查看所有用户  

use mysql;
select User,Host,authentication_string from user;

 

 

 遇到问题汇总

[root@VM-0-12-centos bin]# ./mysqld --initialize --user=mysql --basedir=/data/mysql/mysql-5.7.29/ --datadir=/data/mysql/mysql-5.7.29/data/ 
./mysqld: error while loading shared libraries: libnuma.so.1: cannot open shared object file: No such file or directory

解决:

如果安装mysql出现了以上的报错信息.这是却少numactl这个时候如果是Centos就yum -y install numactl就可以解决这个问题了.
ubuntu的就sudo apt-get install numactl就可以解决这个问题了

 

 

 

select host,user,authentication_string from mysql.user;
create user 'yunnn'@'%' identified by 'yunnn123';
grant all privileges on `yunnan`.* to 'yunnn'@'%' ;
grant all privileges on `test`.* to 'yunnn'@'%' ;

flush privileges;


 show grants;
 
 -- 1044 打开授权权限
 UPDATE mysql.user SET Grant_priv='Y', Super_priv='Y' WHERE User='root';
 
 
 
 SELECT VERSION()

 

 

 

 

分配mysql用户权限

select host,user,authentication_string from mysql.user;
grant all privileges on `guangxicp_test`.* to 'qgjszctest'@'%' ;

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

https://blog.csdn.net/yhj198927/article/details/103745946
https://blog.csdn.net/hjf161105/article/details/78850658
https://www.cnblogs.com/chuanqi1995/p/11325400.html

 

 

 

参考文献:

https://blog.csdn.net/lch520baby/article/details/89081306#commentBox

 

posted @ 2020-12-02 14:00  苦心明  阅读(2399)  评论(0编辑  收藏  举报