Hi all. Hoping to get some more insight of this issue. I am trying to install Sonoma on my iMac 27" mid 2011 with oclp. Have installed sequioa on 2 MP 5.1's and a macbook air 2013 without any issues. the imac just loop (lost count on how many times) and then the progress stops. the only thing i can think of that might be of an issue is that i upgraded the GPU to a GTX 780M a few years back when still running high sierra on it.