Quote Originally Posted by n1ght5t4lk3r View Post
I can say that its almost likely the issue, since I followed the directions and to start ended up with no change in the name I desired to change, but then after the above quoted reply I dropped the "(on /dev/sda1)" or in my case sda2, and it worked perfectly.
Since at least 2 users experienced the same problem I've gone back to the original post and emphasized that the title does not include the "on /dev/sdXX" portion.

Thanks for the feedback!