I'm clearly displaying that I am a newbie...
The actual error occurs after all the cIOS have installed and says
IOS80-64-v6943[TB+NAND].wad error -1
cIOS202[57]-v5.wad error -1
cIOS222[38]-v5.wad error -1
cIOS223[37]-v5.wad error -1
cIOS224[57]-v5.wad error -1
cIOS249[56]-v20.wad error -1...