ronald77 Posted November 19, 2020 Share Posted November 19, 2020 Hi everyone, I've created an Big Sur installer like described here I've used the EFI folder from that download. The computer installs. Then I copy the EFI from the Installer USB to the EFI part of the MacHD. After restart I tries to boot from Mac HD. Then it restarts and I get an error screen (see attachment). Can anyone help me to get this HackBook running? Thanks! Link to comment Share on other sites More sharing options...
ronald77 Posted November 19, 2020 Author Share Posted November 19, 2020 (edited) It seems when I leave in the usb the machine will boot in OSX... edit: apparently it doesn't Edited November 19, 2020 by ronald77 mistake Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted November 19, 2020 Moderators Share Posted November 19, 2020 At the OC picker, select Reset NVRam, hit spacebar if you don't see that. Link to comment Share on other sites More sharing options...
ronald77 Posted November 19, 2020 Author Share Posted November 19, 2020 Thanks! But I tried that and it doesn't change a thing. When the computer boots, I get the option (disk images) EFI and MacHD. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted November 19, 2020 Moderators Share Posted November 19, 2020 try creating a new boot option in the BIOS, point it to /efi/oc/opencore.efi Link to comment Share on other sites More sharing options...
ronald77 Posted November 20, 2020 Author Share Posted November 20, 2020 That doesn't do it either. Could the problem be in the BIOS settings (dell)? Clean install with your EFI folder. It installs fine. Then I mount the EFI from the installer and copy it to another USB Drive. I unmount the EFI from the installer and mount the EFI from the HD. Copy your EFI folder to the EFI part of the HD with the installed Big Sur. The I eject all drives except the HD. Then I restart. What happens is it boots the MacHD, then reboots halfway. I get the Dell logo, it tries to boot MacHD and then it will give me that warning thing 'You need to restart you computer. Hold down the power button etc.'. And that goes on into a loop for multiple times until the machine shuts off. Do I need to edit something in the EFI folder? Link to comment Share on other sites More sharing options...
Administrators Bronxteck Posted November 20, 2020 Administrators Share Posted November 20, 2020 what type of hard drive is it. Sata, M.2, NVME ? what model? Link to comment Share on other sites More sharing options...
ronald77 Posted November 20, 2020 Author Share Posted November 20, 2020 Hi Bronxteck, It's a liteon lmh-256v2m-11 msata 256gb. Link to comment Share on other sites More sharing options...
Administrators Bronxteck Posted November 20, 2020 Administrators Share Posted November 20, 2020 maybe try updating the firmware for it https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=ycjg9&oscode=wt64a&productcode=latitude-e7450-ultrabook Link to comment Share on other sites More sharing options...
ronald77 Posted November 20, 2020 Author Share Posted November 20, 2020 But for that firmware update I'll need a working windows partition? Link to comment Share on other sites More sharing options...
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