Linux CentOS7系统下安装mysql8.0.13版本

[root@VM_0_14_centos mysql]# tar -xvf mysql-8.0.13-linux-glibc2.12-x86_64.tar.xz
[root@VM_0_14_centos mysql]# cp -rv mysql-8.0.13-linux-glibc2.12-x86_64 /usr/local
[root@VM_0_14_centos mysql]# cd /usr/local 
[root@VM_0_14_centos local]# mv mysql-8.0.13-linux-glibc2.12-x86_64 mysql

useradd -s /sbin/nologin -M mysql

/usr/local/mysql/bin/mysqld --initialize --user=mysql

[root@VM_0_14_centos mysql]# /usr/local/mysql/bin/mysqld --initialize --user=mysql
2019-01-20T10:56:07.718326Z 0 [System] [MY-013169] [Server] /usr/local/mysql/bin/mysqld (mysqld 8.0.13) initializing of server in progress as process 5826
2019-01-20T10:56:16.915217Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: twi=Tlsi<0O!
2019-01-20T10:56:20.410563Z 0 [System] [MY-013170] [Server] /usr/local/mysql/bin/mysqld (mysqld 8.0.13) initializing of server has completed

cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld

vim /etc/my.cnf
[mysqld]
    basedir = /usr/local/mysql   
    datadir = /var/lib/mysql
    socket = /var/lib/mysql/mysql.sock
    character-set-server=utf8
 [client]
   socket = /var/lib/mysql/mysql.sock
   default-character-set=utf8

service mysqld start

mysqld_safe Directory '/var/lib/mysql' for UNIX socket file don't exists.

[root@VM_0_14_centos lib]# mkdir mysql
[root@VM_0_14_centos lib]# chmod 777 /var/lib/mysql

Starting MySQL. ERROR! The server quit without updating PID file (/var/lib/mysql/VM_0_14_centos.pid).

[root@VM_0_14_centos mysql]# cat VM_0_14_centos.err
2019-01-20T11:11:45.906800Z 0 [System] [MY-010116] [Server] /usr/local/mysql/bin/mysqld (mysqld 8.0.13) starting as process 7788
2019-01-20T11:11:45.910813Z 0 [Warning] [MY-013242] [Server] --character-set-server: 'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous.
2019-01-20T11:11:45.925456Z 1 [ERROR] [MY-011011] [Server] Failed to find valid data directory.
2019-01-20T11:11:45.925586Z 0 [ERROR] [MY-010020] [Server] Data Dictionary initialization failed.
2019-01-20T11:11:45.925600Z 0 [ERROR] [MY-010119] [Server] Aborting
2019-01-20T11:11:45.926342Z 0 [System] [MY-010910] [Server] /usr/local/mysql/bin/mysqld: Shutdown complete (mysqld 8.0.13)  MySQL Community Server - GPL.
2019-01-20T11:12:00.049920Z 0 [System] [MY-010116] [Server] /usr/local/mysql/bin/mysqld (mysqld 8.0.13) starting as process 7975
2019-01-20T11:12:00.052469Z 0 [Warning] [MY-013242] [Server] --character-set-server: 'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous.
2019-01-20T11:12:00.060600Z 1 [ERROR] [MY-011011] [Server] Failed to find valid data directory.
2019-01-20T11:12:00.060745Z 0 [ERROR] [MY-010020] [Server] Data Dictionary initialization failed.
2019-01-20T11:12:00.060759Z 0 [ERROR] [MY-010119] [Server] Aborting
2019-01-20T11:12:00.061610Z 0 [System] [MY-010910] [Server] /usr/local/mysql/bin/mysqld: Shutdown complete (mysqld 8.0.13)  MySQL Community Server - GPL.

ERROR! MySQL is not running, but lock file (/var/lock/subsys/mysql) exists

2019-01-20T11:11:45.925456Z 1 [ERROR] [MY-011011] [Server] Failed to find valid data directory.
2019-01-20T11:11:45.925586Z 0 [ERROR] [MY-010020] [Server] Data Dictionary initialization failed.

cd /usr/local/bin  
ln -fs /usr/local/mysql/bin/mysql mysql

you must reset your password using ALTER USER statement before executing this statement.

alter user user() identified by '123456';

grant all privileges on *.* to 'root'@'%' identified by '123456';

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'identified by '123456' at line 1

use mysql;
update user set host = '%' where user = 'root';
flush privileges;

Client does not support authentication protocol requested by server; consider upgrading MySQL client

ALTER USER 'root'@'*' IDENTIFIED WITH mysql_native_password BY '123456';