OpenCore is now able to boot the installer and pre-existing installed macOS 11 Big Sur
macOS Big Sur beta 2 (20A4300b) New!
VMware alternative topic
Big Thanks to XLR and your Badass Motherboard, Ultrafast CPU, Coolest Heatsink, Huge Graphics Card, Tonnes of RAM,
Gigantic Hard Drive, Lightspeed Disk Burner, Professional Sound Card, Massive LCD Display.
-Credits and thanks to the old and new people in the community who developed patches, kexts and bootloaders!
So I have some less powerful hardware, that's why I'm installing High Sierra in 2020. Anyway, I'm trying to boot from the USB and I get the following errors:
00:000 00:000 OCB: Missing DMG signature, aborting
00:585 00:585 OCB: LoadImage failed - Unsupported
That's it. The logs begin and end there. The rest of the file is zeroes.
Note: I used SSDTTime to make the DSDT dumps for this exact computer
Intel Core i3 (Haswell)
An Intel VGA-Compatible Haswell iGPU
An nVidia Geforce 920m GPU (part of the reason for installing High Sierra)
USB: Intel 8 Series USB xHCI HC
SATA: Intel 8 series SATA Controller
If you need more details, here's my laptop https://www.asus.com/Laptops/X540LJ/ . I have the 512GB version with 4GB of RAM
I found a lot of forum posts about people having the same error, except nothing solved mine. Also, I haven't found anything online about the error with the Missing DMG Signature.
EDIT: If anybody needs my config.plist, feel free to ask for it and I'll happily post it