在mysqld.log沒有臨時密碼

Question

我使用MySQL的16年5月7日的社區和CentOS 7

我下面的視頻tutorial安裝mysql：

1. wget的http://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm
2. 百勝localinstall開發.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm
3. yum repolist enabled | grep的 「MySQL的。-community。」
4. 百勝安裝的MySQL社區服務器
5. 服務mysqld的啓動

啓動MySQL後，我可以看到的狀態還活着（運行）與service mysqld status。

但是，我不能得到任何東西：grep 'temporary password' /var/log/mysqld.log

msyqld.log（忽略正常原木）：

[Warning] InnoDB: Cannot open table mysql/plugin from the internal data dictionary of InnoDB though the .frm file for the table exists. 
mysqld: Table 'mysql.plugin' doesn't exist 

[ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it. 

[Warning] InnoDB: Cannot open table mysql/gtid_executed from the internal data dictionary of InnoDB though the .frm file for the table exists. 
mysqld: Table 'mysql.gtid_executed' doesn't exist 

[Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened. 

[Warning] InnoDB: Cannot open table mysql/server_cost from the internal data dictionary of InnoDB though the .frm file for the table exists. 

[Warning] Failed to open optimizer cost constant tables 

[Warning] InnoDB: Cannot open table mysql/time_zone_leap_second from the internal data dictionary of InnoDB though the .frm file for the table exists. 

[Warning] Can't open and lock time zone table: Table 'mysql.time_zone_leap_second' doesn't exist trying to live without them 

[Warning] InnoDB: Cannot open table mysql/servers from the internal data dictionary of InnoDB though the .frm file for the table exists. 

[ERROR] Can't open and lock privilege tables: Table 'mysql.servers' doesn't exist 

感謝任何幫助！

Answer 1

我想通了。

1. 我安裝了mysql選擇的centos 7，mysql版本是5.5。
2. 刪除它：yum刪除mysql-serverl。
3. 通過本教程安裝5.7.16。
4. 有這些錯誤。
5. yum刪除mysql-community-server，再次安裝5.7。
6. 仍有這些錯誤。
7. yum刪除mysql-community-server，但刪除目錄/ var/lib/mysql。
8. 然後再次安裝，它的工作原理。

關鍵是需要手動刪除/ var/lib/mysql。