I try to do normal select on database, like select * from xxx limit 0,30.
But I get this message : ERROR 29 (HY000): File 'tablename.MYD' not found (Errcode: 13)
I try to search the file on mysql datafile folder, and I find it. How can this happen.
Can you access the database using a tool like PhpMyAdmin?
According to this site a full repair should solve it:
If that doesn’t solve it: