如何在Ubuntu 18.04/16.04上安装MySQL 8.0
时间:2020-02-23 14:40:57 来源:igfitidea点击:
在本教程中,我们将介绍如何在Ubuntu 18.04和16.04 LTS Server上安装MySQL 8.0。如果我们使用的是旧版本的MySQL Server(例如5.7),则可能需要就地升级或者转储所有数据,升级软件包并重新导入所有数据库数据。
在将MySQL v8.0下载到Ubuntu 18.04或者16.04 Server之前,我们需要添加官方MySQL Dev apt存储库。运行以下命令:
$sudo apt-get install wget $wget https://dev.mysql.com/get/mysql-apt-config_0.8.15-1_all.deb $sudo dpkg -i mysql-apt-config_0.8.15-1_all.deb Selecting previously unselected package mysql-apt-config. (Reading database ... 127849 files and directories currently installed.) Preparing to unpack mysql-apt-config_0.8.15-1_all.deb ... Unpacking mysql-apt-config (0.8.15-1) ... Setting up mysql-apt-config (0.8.15-1) ... Warning: apt-key should not be used in scripts (called from postinst maintainerscript of the package mysql-apt-config) OK
出现提示时选择版本。
选择<确定>,然后按<Enter>键以确认版本安装。
添加仓库后,更新apt索引并安装mysql-server:
sudo apt update sudo apt install mysql-server
在接下来的屏幕中接受许可协议以开始安装。
为MySQL数据库服务器设置root密码。
确认root密码。
同意保留兼容性。
选择默认的身份验证插件。
当要求输入root密码时,提供密码并确认设置。
确认MySQL服务器的安装版本:
$apt policy mysql-server mysql-server: Installed: 8.0.19-1debian10 Candidate: 8.0.19-1debian10 Version table: *** 8.0.19-1debian10 500 500 http://repo.mysql.com/apt/debian buster/mysql-8.0 amd64 Packages 100 /var/lib/dpkg/status
从输出中,我们可以看到安装的版本是8.0.19.
如果停止使用以下命令,则可以启动该应用程序:
sudo systemctl enable --now mysql
使用以下方法检查状态:
$systemctl status mysql ● mysql.service - MySQL Community Server Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: enabled) Active: active (running) since Sat 2017-03-21 11:15:30 UTC; 2min 31s ago Docs: man:mysqld(8) http://dev.mysql.com/doc/refman/en/using-systemd.html Main PID: 2188 (mysqld) Status: "Server is operational" Tasks: 38 (limit: 2377) Memory: 386.5M CGroup: /system.slice/mysql.service └─2188 /usr/sbin/mysqld Mar 21 11:15:29 deb10 systemd[1]: Starting MySQL Community Server… Mar 21 11:15:30 deb10 systemd[1]: Started MySQL Community Server.
测试MySQL 8.0数据库功能
我们可以通过创建测试数据库来测试数据库服务器是否正常运行:
$sudo mysql -u root -p Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 8 Server version: 8.0.19 MySQL Community Server - GPL Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names Jan be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> mysql> CREATE DATABASE test_db; Query OK, 1 row affected (0.01 sec) mysql> SHOW DATABASES; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | sys | | test_db | +--------------------+ 5 rows in set (0.01 sec) mysql> EXIT Bye