"MySQL" InnoDB:Error:checksum mismatch in data file error

Reference: http://www.jb51.net/article/66951.htm

After starting the original 5.5 instance with version 5.7, the following error occurs with 5.5 boot

InnoDB:Error:checksum mismatchinchDatafile/data/mysql/ibdata1160627 Ten: the: Oneinnodb:could not open or create data files.160627 Ten: the: OneInnodb:if tried to add new data files, and it failed here,160627 Ten: the: OneInnodb:you should now edit Innodb_data_file_pathinchmy.cnf Back160627 Ten: the: Oneinnodb:to What it is, and remove the new ibdata files InnoDB created160627 Ten: the: OneInnoDB:inchThis failed attempt. InnoDB only wrote those files full of160627 Ten: the: OneInnodb:zeros, but didn't yet use theminchAny. But being careful: Do not160627 Ten: the: OneInnodb:remove Old data fileswhichContain your precious data!160627 Ten: the: One[ERROR] Plugin'InnoDB'Initfunctionreturned error.160627 Ten: the: One[ERROR] Plugin'InnoDB'registration as a STORAGE ENGINE failed.160627 Ten: the: One[ERROR] unknown/Unsupported Storage Engine:innodb160627 Ten: the: One[ERROR] aborting160627 Ten: the: One[Note]/usr/local/mysql/bin/mysqld:shutdown complete

Parameters can be skipped to start the error, export the data

innodb_force_recovery=6innodb_purge_thread=0

"MySQL" InnoDB:Error:checksum mismatch in data file error