iMacPro1,1 SMBIOS, APFS NVMe boot drive, kexts in /L/E/.. updated Clover to latest and AppleALC.kext, Lilu.kext and Whatevergreen.kext to latest using Clover Configurator, rebooted; initiated upgrade from Sys Prefs; rebooted twice auto selecting the right install prebooter from preboot option...