Primary link and main menu don't integrate when upgrade from d6 to d7 beta1

I upgraded my blog from d6 to d7 beta1, but primary link don't integrate with main menu. I changed it in Database.

UPDATE {menu_custom} SET menu_name = 'main-menu' WHERE menu_name = 'primary-links';
UPDATE {menu_links} SET menu_name = 'main-menu' WHERE menu_name = 'primary-links';