Mysql - don't forget if you set innodb_force_recovery

Today I got the following error message:

andy@andy-desktop:~/www$ mysql -uroot < db_dump.sql
ERROR 1030 (HY000) at line 2564: Got error -1 from storage engine

I couldn't figure out what could possibly be the cause - the file was valid and worked on
another machine.

So that I don't forget the next time I come across this error, and that something exists on the
web...