richibrics Posted June 25, 2020 Share Posted June 25, 2020 Hi I have a Lenovo Yoga C640, with i5-10210u CPU. If I try to boot the USB installer I get an EXITBS message (with a row of '+'). I get this behavior both with CLOVER and Opencore. If anybody had managed to install macOS to this PC, his help would be really great. I attach my EFI folder (with OpenCore), I tried switching some boolean like SetupVirtualMap and RebuildAppleMemoryMap but with no success. EFI.zip Link to comment Share on other sites More sharing options...
richibrics Posted June 26, 2020 Author Share Posted June 26, 2020 PS: I'm trying to install macOS Catalina 10.15.5 Link to comment Share on other sites More sharing options...
albi74 Posted July 8, 2020 Share Posted July 8, 2020 Hi, I also have the same issue with Lenovo Thinkbook 13s-IML. I''m trying to install catalina 10.15.5 with opencore 0.5.9 but any configuration I try get stuck : EB # LOG:Exitbs: Start +++++++++++++++++++++++++++++++++++++++++++++++++ and I can't do the installation. cfg_lock in bios is enabled and cannot be disabled. When I tried to extract the BIOS to patch it up and edit it with ifrextract it tells me protocol: Unknown The bios, however, is locked for writing, therefore the various methods of modifying the cfg lock do not work. So i've enable AppleCpuPmCfgLock e AppleXcpmCfgLock I've try SetupVirtualMap e RebuildAppleMemoryMap n/n n/y y/y e y/n nothing Then i've try with DevirtualiseMmio and AppleXcpmExtraMsrs and Fakecpuid but rest Stuck at EB # LOG:Exitbs: Start I tried different versions of opencore from 0.5.7 to 0.5.9 and also 0.6.0,but the result does not change. It seems that the same problem afflicts the lenovo carbon x1 7th with comet lake on board, and my thinkbook shares with the latter 99% of the hardware only changes the chassis, and no one has managed to boot it up to now . Link to comment Share on other sites More sharing options...
Recommended Posts