错误1045 (28000)：拒绝用户'root'@'localhost‘的访问(使用密码:否)

Question

我失去了进入MySQL诉5.6.14的通道。我可以进入，突然间我失去了它。

寻找笔记我发现了下面的网址。我做了步骤，但没有成功。http://dev.mysql.com/doc/refman/5.5/en/resetting-permissions.html

C:\Program Files\MySQL\bin>mysqld 2013-11-14 19:46:01警告时间戳的隐含默认值被否决。请使用 C：\ProgramFiles\MySQL\bin>mysql -u root mysql1 错误1045 (28000)：拒绝用户'root'@'localhost‘的访问(使用密码:否)

注意:我没有mysqld_safe或safe_mysqld文件的MySQL版本

你能帮帮我吗？下面可以看到命令生成的转储文件：

C:\mysqld --init-file=C:\\mysql-init.txt

C:\Program Files\MySQL\bin>mysqld --init-file=C:\\mysql-init.txt --console

2013-11-14 17:57:20 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated.     Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2013-11-14 17:57:20 5180 [Note] Plugin 'FEDERATED' is disabled.
2013-11-14 17:57:20 5180 [Note] InnoDB: The InnoDB memory heap is disabled
2013-11-14 17:57:20 5180 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked     functions
2013-11-14 17:57:20 5180 [Note] InnoDB: Compressed tables use zlib 1.2.3
2013-11-14 17:57:20 5180 [Note] InnoDB: Not using CPU crc32 instructions
2013-11-14 17:57:20 5180 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2013-11-14 17:57:20 5180 [Note] InnoDB: Completed initialization of buffer pool
2013-11-14 17:57:20 5180 [ERROR] InnoDB: .\ibdata1 can't be opened in read-write mode
2013-11-14 17:57:20 5180 [ERROR] InnoDB: The system tablespace must be writable!
2013-11-14 17:57:20 5180 [ERROR] Plugin 'InnoDB' init function returned error.
2013-11-14 17:57:20 5180 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2013-11-14 17:57:20 5180 [ERROR] Unknown/unsupported storage engine: InnoDB
2013-11-14 17:57:20 5180 [ERROR] Aborting
2013-11-14 17:57:20 5180 [Note] Binlog end
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'partition'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'PERFORMANCE_SCHEMA'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_SYS_DATAFILES'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_SYS_TABLESPACES'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN_COLS'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_SYS_FIELDS'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_SYS_COLUMNS'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_SYS_INDEXES'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_SYS_TABLESTATS'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_SYS_TABLES'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_FT_INDEX_TABLE'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_FT_INDEX_CACHE'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_FT_CONFIG'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_FT_BEING_DELETED'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_FT_DELETED'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_FT_DEFAULT_STOPWORD'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_METRICS'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_BUFFER_POOL_STATS'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE_LRU'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX_RESET'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_CMPMEM_RESET'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_CMPMEM'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_CMP_RESET'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_CMP'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_LOCK_WAITS'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_LOCKS'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'INNODB_TRX'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'BLACKHOLE'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'ARCHIVE'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'MRG_MYISAM'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'MyISAM'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'MEMORY'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'CSV'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'sha256_password'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'mysql_old_password'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'mysql_native_password'
2013-11-14 17:57:20 5180 [Note] Shutting down plugin 'binlog'
2013-11-14 17:57:20 5180 [Note] mysqld: Shutdown complete

C:\Program Files\MySQL\bin>

Answer 1

你的问题是：

2013-11-14 17:57:20 5180 [ERROR] InnoDB: .\ibdata1 can't be opened in read-write mode

ibdata1文件有一些问题--也许权限已经改变了？也许其他的过程已经打开了。它还存在吗？

解决这个问题，其他一切可能就会就位。

Answer 2

我也有同样的问题。mysql -u root -p为我工作。它稍后会问你一个密码。然后输入为mysql设置的密码。如果没有设置密码，默认密码可以是password。更多信息，here。

Answer 3

遵循以下步骤：

1. 完全停止MySQL服务器。这可以通过访问Windows和Windows 2003中的“服务”窗口来完成，在这两个窗口中，您可以停止MySQL服务。
2. 在运行窗口中使用"cmd“打开MS命令提示符。在它内部导航到您的MySQL bin文件夹，例如使用cd命令的C:\MySQL\bin。
3. 在命令提示符中执行以下命令：mysqld.exe -u root --skip-grant-tables
4. 保留当前的window命令提示符，打开一个新的window命令提示符窗口.
5. 导航到您的MySQL bin文件夹，例如使用cd命令的C:\MySQL\bin。
6. 输入mysql并按enter。
7. 现在应该可以使用MySQL命令提示符了。输入use mysql;，以便切换到"mysql“数据库。
8. 执行以下命令以更新密码： 更新用户设置密码=密码(‘NEW_PASSWORD’)，其中user = 'root'；

但是，您现在可以运行任何您希望的SQL命令。

完成后，关闭第一个命令提示符并在第二个命令提示符窗口中键入exit;以成功断开连接。现在可以启动MySQL服务了。