Big Sur without USB

[fyrekrig]

Have looked everywhere for solution to this.
Have EFI but unable to inject to MacOS. Write protected!
Have tried to access MacOS from external HD with MacOS install.
MacOS on external drive still write protected!
Have tried to use MounEFI.command but unable to understand the process!
Need a lot of HELP!!

 

[EliteMacx86]

Have looked everywhere for solution to this.
Have EFI but unable to inject to MacOS. Write protected!
Have tried to access MacOS from external HD with MacOS install.
MacOS on external drive still write protected!
Have tried to use MounEFI.command but unable to understand the process!
Need a lot of HELP!!

Is Windows installed on the same drive?

 

[fyrekrig]

Is Windows installed on the same drive?

NO! Only MacOS on three HDD

Have enclosed screenshot of MacOS HD on USB connection.
Why still no write permission?

 

[EliteMacx86]

NO! Only MacOS on three HDD

Have enclosed screenshot of MacOS HD on USB connection.
Why still no write permission?

That does not seem to be an issue as since Catalina, Apple has been restricting the root volume write access.

How are you exactly trying to copy the EFI to your boot drive?

 

[fyrekrig]

Thanks for staying with me!

Is there any way to gain root access to MacOS?
I thought I could if it was on an external drive, but no such luck!

As I don't have write permission I am unable to copy EFI to MacOS.
Have watched and tried some of the guides on the internet of how to boot without the USB.

All of them seemes to put the EFI folder on a different partition.
I have tried that but unable to boot. Just blinking cursor
Don't see how my BIOS can see an EFI boot folder on a different partition than MacOS
My motherboard is MSI B75MA-E33 and I see no way to adjust BIOS settings to allow
booting from another partition.

 

[EliteMacx86]

Thanks for staying with me!

Is there any way to gain root access to MacOS?
I thought I could if it was on an external drive, but no such luck!

As I don't have write permission I am unable to copy EFI to MacOS.
Have watched and tried some of the guides on the internet of how to boot without the USB.

All of them seemes to put the EFI folder on a different partition.
I have tried that but unable to boot. Just blinking cursor
Don't see how my BIOS can see an EFI boot folder on a different partition than MacOS
My motherboard is MSI B75MA-E33 and I see no way to adjust BIOS settings to allow
booting from another partition.

Seems like you're doing it the wrong way.

Read here:

GUIDE - How to Boot macOS without USB [Clover/OpenCore] - Installing Bootloader on the macOS/OS X Drive

How to Boot macOS without USB [Clover/OpenCore] - Installing Bootloader on the macOS/OS X Drive An EliteMacx86 Exclusive Guide - This guide covers booting of macOS without USB after finishing the installation. By using this method, you’ll be easily able to install the Clover/OpenCore Boot...

elitemacx86.com

Assuming your hardware is UEFI, follow the UEFI steps for the OC.

 

[fyrekrig]

Not much help here! Don't worry.
To much work with no gain for an inferior OS I will never use.

 

[EliteMacx86]

Not much help here! Don't worry.
To much work with no gain for an inferior OS I will never use.

Well, its your choice. When you cannot state what you did and what are the affect of changes, neither you'll share the PR files. So, magic cannot be done without that.