步驟一：下載安裝包，打開Mysql官網，找到對應的
下載路徑如下：https://downloads.mysql.com/archives/community/
wget https://downloads.mysql.com/archives/get/file/mysql-5.7.27-linux-glibc2.12-x86_64.tar.gz -O /usr/local/src/mysql-5.7.27-linux-glibc2.12-x86_64.tar.gz
步驟二：下載依賴包，Centos7自帶不需要安裝
[root@centos702 21:56:19]:/usr/local/src #yum -y install libaio 已加載插件：fastestmirror, langpacks Loading mirror speeds from cached hostfile * base: mirrors.aliyun.com * epel: mirrors.aliyun.com * extras: mirrors.aliyun.com * updates: mirrors.aliyun.com 軟件包 libaio-0.3.109-13.el7.x86_64 已安裝並且是最新版本 無須任何處理
步驟三：解壓安裝包
[root@centos702 21:58:45]:/usr/local/src #tar -zxvf mysql-5.7.27-linux-glibc2.12-x86_64.tar.gz
步驟四：創建數據庫用戶，移動數據庫文件到你想要放的位置，並創建mysql數據目錄，最后修改屬主為Mysql
[root@centos702 21:59:26]:/usr/local/src #useradd -M -s /sbin/nologin -r mysql
#mv /usr/local/src/mysql-5.7.27-linux-glibc2.12-x86_64 /home/data/mysql [root@centos702 22:02:09]:/usr/local/src #mkdir -p /home/data/mysql [root@centos702 22:02:18]:/usr/local/src #chown -R mysql.mysql /home/data/mysql
步驟五：初始化數據庫
[root@centos702 22:04:56]:/home/data #/home/data/mysql/bin/mysqld --initialize --user=mysql --basedir=/home/data/mysql --datadir=/home/data/mysql/data 2019-11-09T14:06:56.634380Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2019-11-09T14:06:57.063698Z 0 [Warning] InnoDB: New log files created, LSN=45790 2019-11-09T14:06:57.142365Z 0 [Warning] InnoDB: Creating foreign key constraint system tables. 2019-11-09T14:06:57.200813Z 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: 30cc7a37-02fa-11ea-a548-000c29cbc202. 2019-11-09T14:06:57.202254Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened. 2019-11-09T14:06:57.203612Z 1 [Note] A temporary password is generated for root@localhost: KaELVb2yol<4 #此次是生成的臨時密碼，用於第一次登陸，登陸后需要重新修改
步驟六：創建配置文件,這里只創建常見配置文件
cat > /etc/my.cnf <<EOF [mysqld] basedir=/home/data/mysql datadir=/home/data/mysql/data port=3306 socket=/home/data/mysql/mysql.sock character-set-server=utf8 log-error=/var/log/mysqld.log pid-file=/tmp/mysqld.pid [mysql] socket=/home/data/mysql/mysql.sock [client] socket=/home/data/mysql/mysql.sock EOF
步驟七：配置環境變量，並刷新
cat >/etc/profile.d/mysql.sh <<EOF export PATH=/home/data/mysql/bin:\$PATH EOF
source /etc/profile.d/mysql.sh
步驟八：生成啟動腳本，並啟動mysql
[root@centos702 22:14:40]:/home/data #cp /home/data/mysql/support-files/mysql.server /etc/init.d/mysql [root@centos702 22:16:42]:/home/data #chmod +x /etc/init.d/mysql
[root@centos702 22:17:55]:/home/data #vim /etc/init.d/mysql
#修改mysql啟動配置文件，指定datadir和basedir路徑，如不指定，默認是/usr/local/mysql [root@centos702 22:18:31]:/home/data #sed -i '46s#basedir=#basedir=/home/data/mysql#' /etc/init.d/mysql [root@centos702 22:20:15]:/home/data #sed -n '46p' /etc/init.d/mysql basedir=/home/data/mysql [root@centos702 22:20:30]:/home/data #sed -i '47s#datadir=#datadir=/home/data/mysql/data#' /etc/init.d/mysql [root@centos702 22:21:13]:/home/data #sed -n '47p' /etc/init.d/mysql datadir=/home/data/mysql/data
#啟動mysql [root@centos702 22:23:54]:/home/data # /etc/init.d/mysql start Starting MySQL. SUCCESS!
步驟九：登錄mysql，並修改密碼
[root@centos702 22:26:28]:/home/data #mysql -uroot -p'KaELVb2yol<4' mysql: [Warning] Using a password on the command line interface can be insecure. Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 3 Server version: 5.7.27 Copyright (c) 2000, 2019, 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 for root@localhost=password('cnhope'); Query OK, 0 rows affected, 1 warning (0.00 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec)
