Modifying configuration file causes Ib_logfile size mismatch and MySQL does not start

#错误原因: The innodb_log_file_size was modified in the My.cnf file,

#导致ib_logfile文件的大小与之前存在的文件大小不匹配;

#解决方法: Delete ib_logfile and restart the database when the database is cleanly shut down

120221 06:47:03 mysqld_safe mysqld from PID File/home/mysql/jsunsa.pid ended

120221 06:47:07 Mysqld_safe starting mysqld daemon with databases From/home/mysql

120221 6:47:07 [Warning] The syntax '--log-slow-queries ' is deprecated and would removed in a future release. Use '--slow-query-log '/'--slow-query-log-file ' instead.

120221 6:47:07 [note] Plugin ' federated ' is disabled.

120221 6:47:08 innodb:the InnoDB memory heap is disabled

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120221 6:47:08 innodb:mutexes and rw_locks use InnoDB ' s own implementation

120221 6:47:08 innodb:compressed tables use zlib 1.2.3

120221 6:47:08 innodb:using Linux native AIO

120221 6:47:08 innodb:initializing buffer pool, size = 16.0M

120221 6:47:08 innodb:completed initialization of buffer pool

InnoDB:Error:log File/home/mysql/ib_logfile0 is of different size 0 5242880 bytes

Innodb:than specified in the. cnf file 0 134217728 bytes!

120221 6:47:08 [ERROR] Plugin ' InnoDB ' init function returned ERROR.

120221 6:47:08 [ERROR] Plugin ' InnoDB ' registration as a STORAGE ENGINE.

120221 6:47:08 [ERROR] unknown/unsupported storage Engine:innodb

120221 6:47:08 [ERROR] Aborting

120221 6:47:08 [note]/usr/sbin/mysqld:shutdown complete