Garrum was training under the tutelage of Tar'eelok, a Jedi Master. In 3956 BBY, when Revan made his way to the Jedi Enclave located on Dantooine, he was still unfamiliar with both the principles of the Jedi Code and how to wield a lightsaber. Because Garrum did not demonstrate sufficient reverence for the weapon, his Master restricted his combat practice to the use of cortosis blades.
Although Garrum's character was removed from the released version of Star Wars: Knights of the Old Republic, a dialogue exchange featuring him and his Master remains accessible within the game's data.
Since then, this content has been brought back into the game through a modification [1]