You can bring a bottle of Rimmer's ale to the major: if you talk to him after doing that, he will give you a password you can use in the dwarven mines.
Without giving you any spoilers, I can tell you that bringing the beer won't solve the quest: you have to do some other things after talking to this dwarf.
I know that...but the problem is that when i bring rimmers ale nothing happens, i get the same converstation...he doesn't give me any password
