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I have a database folder from a crashed server called gain_wordpress. I'm trying to put that database on a new server but I'm not able to do it successfully. I don't have a .sql dump, all I have is the database folder from a past crashed server with ibdata and the 2 log files.

I copied the gain_wordpress folder to /var/lib/mysql on the new server but when I do a > show tables on the database I get the following error: 

ERROR 1018 (HY000): Can't read dir of './gain_wordpress/' (errno: 13)

I also changed the permission of the folder and did a chown mysql:mysql gain_wordpress -R and it still didn't take care of the problem.

What is the best way to recover gain_wordpress. Do I need to replace any of the ibdata or the logfiles? What is the best way? I have the corresponding .frm, .MYD and .MYI files for each table. Please advise.

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you need to make sure the ownership and privileges are correct for the directory, you can use the following commands to set it right:

chown -R mysql:mysql /var/lib/mysql/ --your mysql user may have different name, if its different you need to change it [mysql:mysql] as needed 
chmod -R 755 /var/lib/mysql/

note: -R: recursive fir the directory and all its contents.

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  • The permissions for the mysql user and group on file level are generally -rw-rw---- which corresponds to 0660. I'd perform the chmod from the gain_wordpress directory downwards (chmod -R 0660 /var/lib/mysql/gain_wordpress).
    – John K. N.
    Commented Jun 14, 2017 at 6:36

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