MySQL: Error dropping database (errno 13; errno 17; errno 39)

Question

I failed to drop a database:

mysql> drop database mydb;
ERROR 1010 (HY000): Error dropping database (can\'t rmdir \'./mydb\', errno: 39)

Directory db/m

Answer 1

In my case it was due to 'lower_case_table_names' parameter.

The error number 39 thrown out when I tried to drop the databases which consists upper case table names with lower_case_table_names parameter is enabled.

This is fixed by reverting back the lower case parameter changes to the previous state.