mysql安装

环境

windows10 + WLS

安装

sudo apt update
sudo apt install mysql-server

初始化及启动

出错

执行初始化命令时也发生错误：

sudo mysqld_safe --initialize --user=mysql

报错：

Plugin mysqlx reported: 'Setup of socket: '/var/run/mysqld/mysqlx.sock' failed, can't create lock file /var/run/mysqld/mysqlx.sock.lock'

执行启动命令也出现同样错误：

sudo mysqld_safe --user=mysql &

报错：

Plugin mysqlx reported: 'Setup of socket: '/var/run/mysqld/mysqlx.sock' failed, can't create lock file /var/run/mysqld/mysqlx.sock.lock'

解决

创建目录/var/run/mysqld ：

sudo mkdir /var/run/mysqld
sudo chown mysql:mysql /var/run/mysqld
sudo chmod 750 /var/run/mysqld

创建目录后再次启动：

sudo mysqld_safe --user=mysql &

测试连接：

sudo mysqladmin version

结果如下：

lcy@LAPTOP-4C7M093G:/usr/local$ sudo mysqladmin version
[sudo] password for lcy:
mysqladmin  Ver 8.0.26-0ubuntu0.20.04.2 for Linux on x86_64 ((Ubuntu))
Copyright (c) 2000, 2021, Oracle and/or its affiliates.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Server version          8.0.26-0ubuntu0.20.04.2
Protocol version        10
Connection              Localhost via UNIX socket
UNIX socket             /var/run/mysqld/mysqld.sock
Uptime:                 53 sec

Threads: 2  Questions: 2  Slow queries: 0  Opens: 117  Flush tables: 3  Open tables: 36  Queries per second avg: 0.037

参考

MySQL :: MySQL Installation Guide :: 9.1 Initializing the Data Directory

MySQL :: MySQL Installation Guide :: 9.2 Starting the Server

MySQL :: MySQL Installation Guide :: 9.3 Testing the Server

sockets - MySQL Daemon Lock issue - Stack Overflow