linux安裝mysql5.7.24
1、檢查是否已安裝過mariadb，若有便刪除（linux系統自帶的）
[root@localhost /]# rpm -qa | grep mariadb
[root@localhost /]# rpm -e --nodeps mariadb-libs-5.5.44-2.el7.centos.x86_64
2、檢查是否已安裝過mysql，若有便刪除（linux系統自帶的）
[root@localhost /]# rpm -qa | grep mysql
[root@localhost /]# rpm -e –-nodeps mysql-libs-5.1.52.x86_64
3、檢查mysql組和用戶是否存在，如無創建：
[root@localhost ~]# cat /etc/group | grep mysql
[root@localhost ~]# cat /etc/passwd |grep mysql
[root@localhost ~]# groupadd mysql
[root@localhost ~]# useradd -r -g mysql mysql
4、從官網下載mysql安裝包，解壓後移動到/usr/local/mysql下
[root@localhost download]# wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.24-linux-glibc2.12-x86_64.tar.gz<br>[root@localhost download]# tar xzvf mysql-5.7.24-linux-glibc2.12-x86_64.tar.gz<br>[root@localhost download]# mv mysql-5.7.24-linux-glibc2.12-x86_64 /usr/local/mysql
5、在mysql下添加data目錄
[root@localhost ~]# mkdir /usr/local/mysql/data
6、更改mysql目錄下所有的目錄及文件夾所屬組合用戶
[root@localhost /]# cd /usr/local/
[root@localhost local]# chown -R mysql:mysql mysql/
[root@localhost local]# chmod -R 755 mysql/
7、編譯安裝並初始化mysql，記住命令行末尾的密碼：
[root@localhost local]# /usr/local/mysql/bin/mysqld --initialize --user=mysql --datadir=/usr/local/mysql/data --basedir=/usr/local/mysql
2019-08-31T08:50:23.910440Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2019-08-31T08:50:23.910635Z 0 [ERROR] Can't find error-message file '/usr/local/mysql/--datadir=/usr/local/mysql/data/share/errmsg.sys'. Check error-message file location and 'lc-messages-dir' con
figuration directive.2017-08-31T08:50:24.709286Z 0 [Warning] InnoDB: New log files created, LSN=45790
2019-08-31T08:50:24.767540Z 0 [Warning] InnoDB: Creating foreign key constraint system tables.
2019-08-31T08:50:24.892629Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 6e083b8f-8e29-11e7-88b1-
005056b427be.2017-08-31T08:50:24.895674Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.
2019-08-31T08:50:24.896645Z 1 [Note] A temporary password is generated for root@localhost: gFamcspKm2+u
8、啓動mysql服務
[root@localhost local]# /usr/local/mysql/support-files/mysql.server start
9、做個軟連接，重啓服務
[root@localhost local]# ln -s /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql
[root@localhost local]# service mysql restart
Shutting down MySQL.. SUCCESS!
Starting MySQL. SUCCESS!
10、做個軟鏈接，將安裝目錄下的mysql 放在/usr/bin 目錄下
[root@localhost local]# ln -s /usr/local/mysql/bin/mysql /usr/bin
11、登錄msyql，輸入密碼（密碼爲步驟7初始化生成的密碼）
[root@localhost local]# mysql -u root -p
Enter password:
12、修改密碼並開放遠程
msql>alter user 'root'@'localhost' identified by '123456';
mysql>use mysql;
msyql>update user set user.Host='%' where user.User='root';
mysql>flush privileges;
mysql>quit
13、編輯my.cnf，添加配置文件，配置內容爲
[root@localhost local]# vi /usr/local/mysql/my.cnf
[mysqld]
port = 3306
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
14、設置開機自啓動
1、將服務文件拷貝到init.d下，並重命名爲mysql
[root@localhost local]# cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
2、賦予可執行權限
[root@localhost local]# chmod +x /etc/init.d/mysqld
3、添加服務
[root@localhost local]# chkconfig --add mysqld
4、顯示服務列表
[root@localhost local]# chkconfig --list
5、重啓服務器
[root@localhost local]# reboot