could be this block ? The installer runn durnig 12 min, then stop and say OSbase may be dammaged
-no_check_compat ? and argument for opencore ?
stuck on This version of Mac OS X is out supported: Reason Mac...
This error happens when SMBIOS is one no longer supported by that version of macOS, make sure values are set in PlatformInfo->Generic with Automatic enabled. Reminder of supported SMBIOS in macOS 10.15 Catalina: