Same error here.
Installed Server 2019 Datacenter Core on my 2xHPE BL460c G9 - and then trying to run a launch_sum.bat /s - and then I get this error.
Same error here.
Installed Server 2019 Datacenter Core on my 2xHPE BL460c G9 - and then trying to run a launch_sum.bat /s - and then I get this error.