Hi, Toshi > Oh, I think I now understand what the issue was. The z420 firmware > updates the SMBIOS table address in the EFI system table to a virtual > address after calling EFI SetVirtualAddressMap. So, you are passing the > original physical address of the SMBIOS table from the 1st kernel to the > 2nd kernel to put it back to physical. Is that right? Right. Thanks Dave