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POMySQL InnoDB database restore using .frm files and ibdata files
 

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  1. POMySQL InnoDB database restore using .frm files and ibdata files
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    <p>Hi mistakenly I have deleted my MySQL database from Windos XP based PC (this database was used to host a Wiki service using Xampp package). Now I am trying to restore the data so that I can atleast retrieve the TEXT entered in the respective table of Mediawiki package.</p> <p>After deletion I tried to recover the data using Minitool data recovery software and was able to recover the main schema folder containing .frm files, ib_logfile0, ib_logfile1 and ibdata1 (which was stored under C>xampp>mysql>data).</p> <p>Now I am trying to restore the database so that I can take a SQL dump and use it accordingly. I have consulted some previous suggestions provided by the experts. Below are the links -</p> <p><a href="http://www.nerdydork.com/restoring-mysql-innodb-files-on-windows.html" rel="nofollow noreferrer">Restoring MySQL InnoDB files on Windows</a></p> <p><a href="https://stackoverflow.com/questions/115681/mysql-innodb-database-restore">Stackoverflow answers</a></p> <p>But these did not help me very much, not sure what exactly I am missing from the instructions. At the end I was unable to start MySQL service and it failed with the below errors in log -</p> <pre><code>120823 12:17:04 [Note] Plugin 'FEDERATED' is disabled. 120823 12:17:04 InnoDB: The InnoDB memory heap is disabled 120823 12:17:04 InnoDB: Mutexes and rw_locks use Windows interlocked functions 120823 12:17:04 InnoDB: Compressed tables use zlib 1.2.3 120823 12:17:04 InnoDB: Initializing buffer pool, size = 16.0M 120823 12:17:04 InnoDB: Completed initialization of buffer pool 120823 12:17:04 InnoDB: highest supported file format is Barracuda. InnoDB: No valid checkpoint found. InnoDB: If this error appears when you are creating an InnoDB database, InnoDB: the problem may be that during an earlier attempt you managed InnoDB: to create the InnoDB data files, but log file creation failed. InnoDB: If that is the case, please refer to InnoDB: http://dev.mysql.com/doc/refman/5.5/en/error-creating-innodb.html 120823 12:17:04 [ERROR] Plugin 'InnoDB' init function returned error. 120823 12:17:04 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed. 120823 12:17:04 [ERROR] Unknown/unsupported storage engine: InnoDB 120823 12:17:04 [ERROR] Aborting </code></pre> <p>Any help to recover from this situation will be highly appreciated. I am willing to provide some more data if required. [<code>MySQL Server Version 5.5, xampp-win32-1.8.0-VC9</code>]</p>
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    1. USpsychsane
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      1. POMySQL InnoDB database restore using .frm files and ibdata files
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    1. CORefer this: http://dev.mysql.com/doc/refman/5.5/en/error-creating-innodb.html
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      1. USShubhansh
    2. COI would do a fresh install of Mysql server in a different folder or server, then copy/overwrite the new .frm and ibdata files with your old ones, and then start the server
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      1. USgolimar
    3. CO@shubhansh I tried that too but it did not help. Any other suggestions please?
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      1. USpsychsane
 

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