[Guide] Booting The USB Installer Using OpenCore

[authentiiq]

Hello,

I have a problem when I boot on my USB key with Mac OS Catalina.
I get an error like this and it gets stuck:

I have set my BIOS settings correctly, my BIOS is up to date.

I attach my EFI folder to the message!

 

[Nothut]

I got "DiskPart has encountered an error: The parameter is incorrect." when I erased the disk.

 

[Feartech]

I got "DiskPart has encountered an error: The parameter is incorrect." when I erased the disk.View attachment 507131

what does the event log say?

maybe an issue with your usb stick?

 

[Feartech]

Post 1 has been updated with OpenCore 0.6.6 and with updated kexts

 

[MeherBA]

Can't use this guide for Big sur version 11.2.1 from the list with the file InstallAssistant.pkg

 

[Feartech]

Can't use this guide for Big sur version 11.2.1 from the list with the file InstallAssistant.pkg

try Catalina

 

[MeherBA]

try Catalina

I have a usb dongle wifi, can i use it during the installation ?

 

[Feartech]

I have a usb dongle wifi, can i use it during the installation ?

probably not, best to use internal ethernet

 

[MeherBA]

probably not, best to use internal ethernet

booted and started the installation successfully, but after the first reboot i selected the installer in the opencore menu and it wont show the apple logo it just reboot automatically

 

[Feartech]

booted and started the installation successfully, but after the first reboot i selected the installer in the opencore menu and it wont show the apple logo it just reboot automatically

maybe post in desktop support unless you are using a laptop and haven't filled out your hardware profile correctly?