From the MySQL 5.5 manual page:
LOCAL works only if your server and your client both have been
configured to permit it. For example, if mysqld was started with
–local-infile=0, LOCAL does not work. See Section 6.1.6, “Security Issues with LOAD DATA LOCAL”.
You should set the option:
local-infile=1
into your [mysql] entry of my.cnf file or call mysql client with the –local-infile option:
mysql --local-infile -uroot -pyourpwd yourdbname
You have to be sure that the same parameter is defined into your [mysqld] section too to enable the “local infile” feature server side.
It’s a security restriction.