前言
下面記錄了我在Linux環境下安裝Mysql的完整過程,實操記錄,只爲讓更多人少踩坑,本次安裝版本爲:mysql-5.7.30,64位操作系統
官網下載地址:mysql-5.7.30-el7-x86_64.tar.gz
百度網盤地址:百度網盤地址 提取碼:lyqh
1、安裝前準備
- 檢測系統是否自帶mysql
[root@localhost /]# rpm -qa | grep mysql
- 如果是,則使用下面命令進行刪除:
[root@localhost /]# rpm -e --nodeps ‘上一步查找的名稱’
- 刪除成功後,查詢所有Mysql對應的文件夾
[root@localhost ~]# whereis mysql
mysql: /usr/bin/mysql /usr/local/mysql
[root@localhost ~]# find / -name mysql
/run/lock/subsys/mysql
/etc/rc.d/init.d/mysql
/usr/bin/mysql
/usr/local/mysql
/usr/local/mysql/bin/mysql
/usr/local/mysql/include/mysql
/usr/local/mysql/data/mysql
- 刪除上面查找的所有文件夾
2、安裝
- 使用rz命令上傳下載好的jar包
[root@localhost ~]# cd /usr/local/
[root@localhost local]# rz
- 解壓
[root@localhost local]# tar -zxvf mysql-5.7.30-el7-x86_64.tar.gz
- 修改解壓目錄名稱
[root@localhost local]# mv mysql-5.7.30-el7-x86_64/ mysql
- 在/usr/local/mysql目錄下創建data目錄
[root@localhost local]# mkdir mysql/data
- 檢查mysql用戶組和用戶是否存在,如果沒有,則創建
[root@localhost local]# cat /etc/group | grep mysql
[root@localhost local]# cat /etc/passwd | grep mysql
[root@localhost local]# groupadd mysql
[root@localhost local]# useradd -r -g mysql mysql
- 更改mysql目錄下所屬的用戶組和用戶,以及權限
[root@localhost local]# chown -R mysql:mysql /usr/local/mysql/
[root@localhost local]# chmod -R 755 /usr/local/mysql
- 編譯安裝並初始化mysql
- 查看並安裝libaio包
[root@localhost bin]# rmp -qa|grep libaio
-bash: rmp: command not found
[root@localhost bin]# yum -y install libaio-devel.x86_64
- 再次執行步驟7,並記住日誌最後的初始化密碼(記住)
- 編輯配置文件my.cnf,添加配置如下
[mysqld]
datadir=/usr/local/mysql/data
port=3306
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
# Settings user and group are ignored when systemd is used.
# If you need to run mysqld under a different user or group,
# customize your systemd unit file for mariadb according to the
# instructions in http://fedoraproject.org/wiki/Systemd
[mysqld_safe]
log-error=/usr/local/mysql/data/mysql.log
pid-file=/usr/local/mysql/data/mysql.pid
- 啓動mysql服務器
- 添加軟連接,並重啓mysql服務
[root@localhost bin]# ln -s /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql
[root@localhost bin]# ln -s /usr/local/mysql/bin/mysql /usr/bin/mysql
[root@localhost bin]# service mysql restart
Shutting down MySQL.. SUCCESS!
Starting MySQL. SUCCESS!
- 登錄mysql,修改密碼爲123456(登錄的密碼是步驟9中初始化密碼)
[root@localhost bin]# mysql -u root -p
Enter password:
mysql>set password for root@localhost = password('123456');
- 開放遠程連接
mysql>use mysql;
msyql>update user set user.Host='%' where user.User='root';
mysql>flush privileges;
3、測試
- 關閉Linux防火牆
[root@localhost bin]# systemctl stop firewalld.service
- Navicat連接測試
結束語
本篇詳細的介紹了mysql-5.7.30的詳細安裝步驟,爲mysql的主從複製教程提供了基礎。
感興趣的同學可以看看博主下一篇mysql主從複製的介紹。