Trying to install Priiloader

Last night I soft-modded a 4.2u. I got HBC installed no and bootmii (not boot2) but when I try to install Priiloader I keep getting this mesage: Logged in as su get root cant read buffer aborting I have tried a few different versions of priiloader with the same results. Also I have installed pimpmywii and it installed all the cios for me. Any ideas what I am doing wrong? Thanks for any responses.

hold B and press + while holding B to use cios

if that doesn't work, wait for the next release which should have that fixed i hope

yeah i tried that also and no luck, hopefully I figure it out.