在我的mac m1 macOS Monterey上安装MySQL后，使用brew安装MySQL，我得到了以下信息:

[System] [MY-013169] [Server] /opt/homebrew/Cellar/mysql/8.0.27_1/bin/mysqld (mysqld 8.0.27) initializing of server in progress as process 3624

[ERROR] [MY-010457] [Server] --initialize specified but the data directory has files in it. Aborting.

[ERROR] [MY-013236] [Server] The designated data directory /opt/homebrew/var/mysql/ is unusable. You can remove all files that the server added to it.

[ERROR] [MY-010119] [Server] Aborting

[System] [MY-010910] [Server] /opt/homebrew/Cellar/mysql/8.0.27_1/bin/mysqld: Shutdown complete (mysqld 8.0.27)  Homebrew.

还有这个警告:

Warning: The post-install step did not complete successfully You can
try again using:   brew postinstall mysql

之后，我尝试使用brew services启动MySQL，我得到了这个错误:

ERROR 2002 (HY000): Can't connect to local MySQL server through socket
'/tmp/mysql.sock' (2)

我设法修复它使用:

> rm -rf ~/opt/homebrew/var/mysql/
> brew postinstall mysql

现在您可以使用mysql -uroot或mysql -uroot -p连接。

正如其他人指出的，这是因为MySQL已经安装，但服务没有运行。启动MySQL服务的方法有很多种，对我有用的方法如下。

启动服务。

转到“系统首选项” 在底部窗格中应该有MySql图标。 双击启动“MySQL服务器状态”，按下“启动MySQL服务器”按钮

我的环境：

Mac Yosemite 10.10.3

安装包:/Volumes/mysql-advanced-5.6.24-osx10.8-x86_64

只有这一点让我成功了 酿造服务启动——全部启动 (试完所有答案后)

在我的案例中，这只是删除一个锁文件的问题。

sudo rm -f /tmp/mysql.sock.lock

我经历了这个问题，我设法运行mysql服务器使用下面的解决方案

通过.dmg(https://dev.mysql.com/downloads/mysql/5.7.html)安装mysql，你会在系统首选项中看到mysql服务面板，然后从面板中启动mysql并尝试

Mysql -u root -p

附图供参考

执行命令:brew info mysql

按照说明做。由公式中的描述可知:

Set up databases to run AS YOUR USER ACCOUNT with:
    unset TMPDIR
    mysql_install_db --verbose --user=`whoami` --basedir="$(brew --prefix mysql)" --datadir=/usr/local/var/mysql --tmpdir=/tmp

To set up base tables in another folder, or use a different user to run
mysqld, view the help for mysql_install_db:
    mysql_install_db --help

and view the MySQL documentation:
  * http://dev.mysql.com/doc/refman/5.5/en/mysql-install-db.html
  * http://dev.mysql.com/doc/refman/5.5/en/default-privileges.html