I got this error when trying to set up my new NAS.
How do you fix it?
Well, I tried the installation with 2 different 32GB USB drives and the same thing happened, but I read on the TrueNAS forum that a new 16GB drive worked for this person. So I went and the next day ordered a 16GB drive to test it out. To my surprise it worked flawlessly, It seems anything over 16GB does not jive well with TrueNAS.