GNU Installation

I installed GNU Radio by using following link

http://gnuradio.org/redmine/projects/gnuradio/wiki/UbuntuInstall#Precise-Pangolin-1204

it installed GNU Radio 3.7.6 version but I didn’t get all the blocks in
GNU user interface. I didn’t get even UHD blocks though I installed UHD
drivers. I got very less blocks like Audio, boolean,…etc. Please give
me solution to get all the blocks including UHD, OFDM, and etc.