Linux安装Mysql

环境准备:

云主机:华为云耀云服务器 Linux release 7.5.1804  1C/2G/40G

Mysql:5.7.28   下载地址:https://dev.mysql.com/downloads/mysql/

Xshell远程连接工具:https://xshell.en.softonic.com/

 

 

安装过程:

1.将Mysql安装包上传至云服务器/usr/local/目录下,或者直接使用wget命令下载:

cd /usr/local/
wget http://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.29-linux-glibc2.5-x86_64.tar.gz

 

2.解压安装

安装说明:

mysql安装目录/usr/local/mysql/

mysql数据仓库目录/usr/local/mysql/data/

mysql日志目录:/var/log/mysql/mysql.log

mysql pid/usr/local/mysql/mysql.pid

mysql scoket/tmp/mysql.sock

 

①用户准备

#检查是否存在mysql用户组与用户,如果存在则不用创建
cat /etc/group | grep mysql
cat /etc/passwd | grep mysql

#创建mysql用户组与用户
groupadd mysql
useradd -r -g mysql mysql

 

②解压安装包

#进入安装包目录
cd /usr/local/

#解压mysql安装包
tar -zxvf mysql-5.7.29-linux-glibc2.12-x86_64.tar.gz

 

③目录准备

#移动目录至mysql
mv mysql-5.7.29-linux-glibc2.12-x86_64 mysql/

#创建mysql数据仓库data目录
mkdir /usr/local/mysql/data

#创建mysql日志目录
mkdir /var/log/mysql  

#为mysql用户赋予权限
chown -R mysql:mysql /usr/local/mysql
chmod -R 755 /usr/local/mysql

chown -R mysql:mysql /var/log/mysql/
chmod -R 755 /var/log/mysql/

chown -R mysql:mysql /tmp/
chmod -R 755 /tmp/

chown -R mysql.mysql  /etc/my.cnf
chmod -R 755 /etc/my.cnf

 

④编译及初始化

#初始化编译安装mysql,务必记住初始化输出日志末尾的密码(数据库管理员临时密码) 
cd /usr/local/mysql/bin 
./mysqld --initialize --user=mysql --datadir=/usr/local/mysql/data --basedir=/usr/local/mysql 

#如果报如下错误则安装libaio
yum install -y libaio-devel.x86_64 #该命令设置SSL安全连接mysql(RSA加密),指定mysql目录和data目录 ./mysql_ssl_rsa_setup --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data #在/usr/local/mysql/bin文件夹中执行以下命令: ./mysqld_safe --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data & #将mysql加入/etc/init.d启动引导: sudo cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql
sudo cp /usr/local/mysql/support-files/mysql.server /etc/rc.d/init.d/mysqld
chmod +x /etc/init.d/mysqld
chkconfig --add mysqld

 

⑤配置环境变量

vim /etc/profile

#添加以下内容
export MYSQL_HOME="/usr/local/mysql"
export PATH="$PATH:$MYSQL_HOME/bin"

#保存后退出
source /etc/profile

 

⑥编辑my.cnf

vim /etc/my.cnf

[mysql]
socket=/tmp/mysql.sock


[mysqld]

sqlmode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION

basedir=/usr/local/mysql

datadir=/usr/local/mysql/data

socket=/tmp/mysql.sock
symbolic-links=0
max_connections=500
default-storage-engine=INNODB
user=mysql
pid-file=/usr/local/mysql/mysql.pid


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


[client]
socket=/tmp/mysql.sock

!includedir /etc/my.cnf.d

 

⑦启动mysql

service mysql start

 

⑦修改初始密码

#填入第④步的初始密码
mysql -u root -p

alter user 'root'@'localhost' identified by '你的密码';

#运行远程连接 use mysql;

  update user set host='%' where user='root';


flush privileges;

 

posted @ 2020-03-06 14:00  lujuhao  阅读(234)  评论(0编辑  收藏  举报