Followed the instructions on this page https://dortania.github.io/OpenCore-Legacy-Patcher/BUILD.html
Used bless command to make patcher startup screen the default. Now when I reboot after the chime I see the OCPL start up picker screen for about 5 seconds and then I switches to a black screen with a white prohibited sign and then a few seconds after computer shuts down. I imagine it is a graphics card issue?
Im on a Mac Pro 5,1, with Sapphire metal GPU, which up until yesterday has been booting to Mojave perfectly.
Please advise
Used bless command to make patcher startup screen the default. Now when I reboot after the chime I see the OCPL start up picker screen for about 5 seconds and then I switches to a black screen with a white prohibited sign and then a few seconds after computer shuts down. I imagine it is a graphics card issue?
Im on a Mac Pro 5,1, with Sapphire metal GPU, which up until yesterday has been booting to Mojave perfectly.
Please advise