站長資訊網tar包解壓安裝
一、檢查環境
#卸載系統自帶的Mariadb [root@Meng ~]# rpm -qa|grep mariadb mariadb-libs-5.5.44-2.el7.centos.x86_64 [root@Meng ~]# rpm -e --nodeps mariadb-libs-5.5.44-2.el7.centos.x86_64 #刪除etc目錄下的my.cnf文件 [root@Meng ~]# rm /etc/my.cnf rm: cannot remove etc/my.cnf No such file or directory #檢查mysql是否存在 [root@Meng ~]# rpm -qa | grep mysql [root@Meng ~]# #檢查mysql組和用戶是否存在，如無創建 [root@Meng ~]# cat /etc/group | grep mysql [root@Meng ~]# cat /etc/passwd | grep mysql #創建mysql用戶組 [root@Meng ~]# groupadd mysql #創建一個用戶名為mysql的用戶并加入mysql用戶組 [root@Meng ~]# useradd -g mysql mysql #制定password 為222222 [root@Meng ~]# passwd mysql Changing password for user mysql. New password: BAD PASSWORD: The password is a palindrome Retype new password: passwd: all authentication tokens updated successfully. #安裝到/usr/local [root@Meng local]# wget https://cdn.mysql.com//Downloads/mysql-5.7.23-linux-glibc2.12-x86_64.tar.gz [root@Meng local]# tar -zxvf mysql-5.7.23-linux-glibc2.12-x86_64.tar.gz [root@Meng local]# mv mysql-5.7.23-linux-glibc2.12-x86_64.tar.gz/ mysql #更改所屬的組和用戶 [root@Meng local]# chown -R mysql mysql/ [root@Meng local]# chgrp -R mysql mysql/ [root@Meng local]# cd mysql/ [root@Meng mysql]# mkdir data [root@Meng mysql]# chown -R mysql:mysql data
二、配置文件
[root@Meng mysql]# vim my.cnf
[mysql] # 設置mysql客戶端默認字符集 default-character-set=utf8 [mysqld] skip-name-resolve #設置3306端口 port = 3306 # 設置mysql的安裝目錄 basedir=/usr/lcoal/mysql # 設置mysql數據庫的數據的存放目錄 datadir=/usr/lcoal/mysql/data # 允許最大連接數 max_connections=200 # 服務端使用的字符集默認為8比特編碼的latin1字符集 character-set-server=utf8 # 創建新表時將使用的默認存儲引擎 default-storage-engine=INNODB lower_case_table_names=1 max_allowed_packet=16M
點擊Esc，輸入：wq 保存并退出！
三、安裝和初始化
[root@Meng mysql]# bin/mysql_install_db --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data/
[root@Meng mysql]# cp ./support-files/mysql.server /etc/init.d/mysqld [root@Meng mysql]# chown 777 /etc/my.cnf [root@Meng mysql]# chmod +x /etc/init.d/mysqld
[root@Meng mysql]# /etc/init.d/mysqld restart Shutting down MySQL.. SUCCESS! Starting MySQL. SUCCESS! #設置開機啟動 [root@Meng mysql]# chkconfig --level 35 mysqld on [root@Meng mysql]# chkconfig --list mysqld [root@Meng mysql]# chmod +x /etc/rc.d/init.d/mysqld [root@Meng mysql]# chkconfig --add mysqld [root@Meng mysql]# chkconfig --list mysqld [root@Meng mysql]# service mysqld status SUCCESS! MySQL running (6666)
四、配置環境變量
[root@Meng ~]#vim /etc/profile
一定要配置好！！！
不然會出現已安裝 MySQL，但執行 mysql 命令提示命令找不到的問題！
五、登陸數據庫
1、獲得初始密碼
[root@Meng bin]# cat /root/.mysql_secret
2、修改密碼
[root@Meng mysql]# mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or g. Your MySQL connection id is 3 Server version: 5.7.23 Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or 'h' for help. Type 'c' to clear the current input statement. mysql> set PASSWORD = PASSWORD('meng_2018'); Query OK, 0 rows affected, 1 warning (0.00 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec)
3、添加遠程訪問權限
mysql> use mysql Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed mysql> update user set host='%' where user='root'; Query OK, 1 row affected (0.00 sec) Rows matched: 1 Changed: 1 Warnings: 0 mysql> select host,user from user; +-----------+---------------+ | host | user | +-----------+---------------+ | % | root | | localhost | mysql.session | | localhost | mysql.sys | +-----------+---------------+ 3 rows in set (0.00 sec) create user 'xxx'@'%' identified by '123'; 這里 @‘%’ 表示在任何主機都可以登錄
4、重啟生效
mysql> quit Bye [root@Meng mysql]# /etc/init.d/mysqld restart Shutting down MySQL.. SUCCESS! Starting MySQL. SUCCESS!
5、在任何目錄下可以登錄mysql
[root@Meng mysql]# ln -s /usr/local/mysql/bin/mysql /usr/bin/mysql
自己安裝了半天，最終才安裝成功！第一開始是用的yum安裝方式，但是總出現問題，最終選擇的壓縮包的方式，以此記錄，愿大家順利安裝！
