Dear everyone, I just love list and I think I should share this information on how to fix MySQL tables that are in use and according to the articles: http://articles.techrepublic.com.com/5100-10878_11-5193721.html and http://tgrove.com/2007/12/02/innodb-operating-system-error-number-13-in-a-file-operation/ - First you should goto the corrupt databse folder in "data" - either fix all tables or if you know the table name: #> myisamchk -r *.MYI #> myisamchk -r /path/to/table.MYI - The, look for these lines, uncomment and change the paths innodb_data_home_dir = /usr/local/mysql/data/ innodb_data_file_path = ibdata1:10M:autoextend innodb_log_group_home_dir = /var/db/mysql/ innodb_log_arch_dir = /usr/local/mysql/data/ - And now fix your permissions on the DATA directory. #>chown -R mysql:mysql /usr/local/mysql - or if u'd like more specific solution and when u get "error number 13" on starting up the Engine, then u must type this command: #> chown mysql:mysql /usr/local/mysql/ibdata1 And u're saved :)