iMac will only boot from USB
by LNW from LinuxQuestions.org on (#5M2JV)
Dear Community, I would really appreciate some help with my escape from evil_OS. Here is the issue with this iMac:
When I boot from the hard drive I get:
Failed to set MokListRT: Invalid Perameter
Importing MOK states has failed: import-mok-state() failed
: Invalid Parameter
Continuing boot since secure mode is disabled
The boot repair utility informs me that:
Locked-NVram detected. Please disable SecureBoot in the BIOS. Then try again.
When I press command+R to try to get to the startup utility I get a blank screen.
I think I did a bad, bad thing and deleted something I need to disable secure boot.
I have previously tried using rEFInd boot manager and several distros without great success.
Thank you for your help! If you teach me this I will pass it on!
When I boot from the hard drive I get:
Failed to set MokListRT: Invalid Perameter
Importing MOK states has failed: import-mok-state() failed
: Invalid Parameter
Continuing boot since secure mode is disabled
The boot repair utility informs me that:
Locked-NVram detected. Please disable SecureBoot in the BIOS. Then try again.
When I press command+R to try to get to the startup utility I get a blank screen.
I think I did a bad, bad thing and deleted something I need to disable secure boot.
I have previously tried using rEFInd boot manager and several distros without great success.
Thank you for your help! If you teach me this I will pass it on!