MySQL今天突然无法启动服务,报错1067进程意外终止的解决方案

问题表象：

我的mysql中的 my.ini文件配置：   

[csharp]

#Path to installation directory. All paths are usually resolved relative to this.  

basedir="D:/software_builder/mysql/"  

 

#Path to the database root  

datadir="C:/ProgramData/MySQL/MySQL Server 5.5/Data/"  

我在 datadir的路径下找到.err文件，查看错误原因   www.2cto.com  

 

[html]

121022 15:21:06 [Note] Plugin 'FEDERATED' is disabled.  

D:\software_builder\mysql\bin\mysqld: Table 'mysql.plugin' doesn't exist  

121022 15:21:06 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.  

121022 15:21:06 InnoDB: The InnoDB memory heap is disabled  

121022 15:21:06 InnoDB: Mutexes and rw_locks use Windows interlocked functions  

121022 15:21:06 InnoDB: Compressed tables use zlib 1.2.3  

121022 15:21:06 InnoDB: Initializing buffer pool, size = 500.0M  

121022 15:21:06 InnoDB: Completed initialization of buffer pool  

121022 15:21:06  InnoDB: Log file .\ib_logfile0 did not exist: new to be created  

InnoDB: Setting log file .\ib_logfile0 size to 100 MB  

InnoDB: Database physically writes the file full: wait...  

InnoDB: Progress in MB: 100  

121022 15:21:07  InnoDB: Log file .\ib_logfile1 did not exist: new to be created  

InnoDB: Setting log file .\ib_logfile1 size to 100 MB  

InnoDB: Database physically writes the file full: wait...  

InnoDB: Progress in MB: 100  

121022 15:21:10 InnoDB: highest supported file format is Barracuda.  

InnoDB: The log sequence number in ibdata files does not match  

InnoDB: the log sequence number in the ib_logfiles!  

121022 15:21:10  InnoDB: Database was not shut down normally!  

InnoDB: Starting crash recovery.  

InnoDB: Reading tablespace information from the .ibd files...  

InnoDB: Restoring possible half-written data pages from the doublewrite  

InnoDB: buffer...  

121022 15:21:10  InnoDB: Waiting for the background threads to start  

121022 15:21:11 InnoDB: 1.1.8 started; log sequence number 3700748  

121022 15:21:11 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.host' doesn't exist  

 

尝试过无数种网络搜索的解决方法，有过重装mysql的念头，也有过砸电脑的冲动，但最后还是天不负有心人，终于找到了解决方法；   

 

第一步：在mysql的安装目录下 basedir="D:/software_builder/mysql/的data文件夹里“D:\software_builder\mysql\data”" 下面还有一个mysql的文件夹（如图），
 

 

把“mysql文件夹”拷贝到数据库的数据存放位置的data文件夹下（我的是：C:\ProgramData\MySQL\MySQL Server 5.5\data）     

 

 

然后在服务里面启动mysql服务