1、mysql启动出现"initialize specified but the data directory has files in it. Aborting"错误?
将目录/var/lib/mysql删除后重新启动即可 ,如果删不了,就用mv改名字。再重启
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rm /var/lib/mysql service mysqld start |
2、 ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
解决方法:(mysql5.7以上都有默认密码)
要找回默认密码:
grep "password" /var/log/mysqld.log 命令获取MySQL的临时密码
2019-02-20T03:41:59.553591Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: y.Jhr.udd2r>
y.Jhr.udd2r>(这是密码)
Mysql –u root -p
Enter password: y.Jhr.udd2r> (输入密码登录)
mysql> ALTER USER USER() IDENTIFIED BY 'root123'; (修改密码)
ERROR 1819 (HY000): Your password does not satisfy the current policy requirements(密码简单的报错。设置大小写加符号)
mysql> ALTER USER USER() IDENTIFIED BY 'Root123?';
Query OK, 0 rows affected (0.06 sec) (密码设置成功)