Thank you maldon for your interest it’s just shows a black screen... it seems that it can be fixing waiting 10-15m, it might a decompression of the dmg... I also try with already build amd Catalina clover, and actually it end with a half white screen, grey the other half and nothing, it’s something related with my gpu, if nothing it’s working I will unplug it and try without, I am sure it’s not your efi, once again thank your maldon, these Catalina is a pain in the a**.