Use the following command yourself
905 Mkdir-p Var/run/mysqld
906 ls-ld/var/run/mysqld/
907 Chown mysql.mysql/var/run/mysqld/
908 ls-ld/var/run/mysqld/
909 Mkdir-p Var/run/mysql
910 Chown Mysql.mysql/var/run/mysql
Previously created the Mysqld directory and assigned his permissions to MySQL, but this time still found hints
2018-05-20t09:43:00.772513z 0 [ERROR] Could not open UNIX socket lock File/var/lib/mysql/mysql.sock.lock.
2018-05-20t09:43:00.772515z 0 [ERROR] Unable to setup UNIX socket lock file.
2018-05-20t09:43:00.772517z 0 [ERROR] aborting
After the restart fails, I view the log. I'm trying to give MySQL root permission.
vi/etc/passwd
Mysql:x:27:27:mysql Server:/var/lib/mysql:/bin/false
Modified to Mysql:x:0:27:mysql Server:/var/lib/mysql:/bin/false
Restart again
Systemctl Restart Mysqld
Has succeeded
If you have other methods: Welcome to discuss
About MySQL can not start the experience, using Systemctl restart Mysqld failed