极客观点
项目管理
HarmonyOS
参考的教程：
https://www.digitalocean.com/...
https://linode.com/docs/datab...
环境：cetnos7，openresty，已经安装好了php7，info.php也显示正常，之前安装了mariadb，卸载了，现在安装mysql5.5
执行命令的过程：
sudo yum install mysql-server
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
- base: mirror.atlanticmetro.net
- epel: fedora-epel.mirrors.tds.net
- extras: mirror.atlanticmetro.net
- ius: ius.mirror.constant.com
- remi-php70: mirror.team-cymru.org
- remi-php71: mirror.team-cymru.org
- remi-php72: mirror.team-cymru.org
- remi-safe: mirror.team-cymru.org
- updates: mirror.atlanticmetro.net
- webtatic: us-east.repo.webtatic.com
Package mysql-community-server-5.5.59-2.el7.x86_64 already installed and latest version
Nothing to do
sudo systemctl start mysqld
（输入这个命令后，光标就卡在这里了）
请问具体的解决方案？
／var/log/mysqld.log 的截图：
/etc/my.cnf 的配置截图：
https://i.imgur.com/e4TYUED.png
mysql
/usr/bin/mysql_secure_installation
按照提示 输入enter
然后输入 4个y
然后sudo systemctl status mysqld