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ctrl-alt-mat

macrumors newbie
Original poster
May 25, 2023
6
0
HI all, I've successfully installed Sonoma on a Macbook Pro 2017 (MacBookPro14,1) using OpenCore Legacy patcher 1.1.0 but when I want to boot from the internal NVMe drive instead of the USB key, the internal EFI partition doesn't show up at bootup with the OPTION key pressed even though I've installed OpenCore onto the internal hard drive (I think) with the post-install steps provided. Once installed onto the internal hard drive, it asks me to reboot with the OPTION key pressed but then there is no EFI partition to boot from?! I've tried MountEFI to no avail, etc. What could be the problem? SPI? Thanks all for your support and please redirect me elsewhere if this question should be asked elsewhere.
 

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varunpilankar

macrumors newbie
Nov 20, 2023
9
0
HI all, I've successfully installed Sonoma on a Macbook Pro 2017 (MacBookPro14,1) using OpenCore Legacy patcher 1.1.0 but when I want to boot from the internal NVMe drive instead of the USB key, the internal EFI partition doesn't show up at bootup with the OPTION key pressed even though I've installed OpenCore onto the internal hard drive (I think) with the post-install steps provided. Once installed onto the internal hard drive, it asks me to reboot with the OPTION key pressed but then there is no EFI partition to boot from?! I've tried MountEFI to no avail, etc. What could be the problem? SPI? Thanks all for your support and please redirect me elsewhere if this question should be asked elsewhere.
How did you resolve this issue? I'm facing the same problem.
 

ctrl-alt-mat

macrumors newbie
Original poster
May 25, 2023
6
0
Finally, on my end, since it's not the "original" SSD that came with the Macbook, Apple can't write the EFI partition onto the drive thus preventing booting from it. OWC company must do things on their end, on their SSDs, to allow this...

I ended up reverting to the official OS that my Macbook supports and that's too bad :(
 

varunpilankar

macrumors newbie
Nov 20, 2023
9
0
Finally, on my end, since it's not the "original" SSD that came with the Macbook, Apple can't write the EFI partition onto the drive thus preventing booting from it. OWC company must do things on their end, on their SSDs, to allow this...

I ended up reverting to the official OS that my Macbook supports and that's too bad :(
I can see a EFI directory through hackintool and able to mount it as well but it's empty.

So you returned the OWC drive? And Purchased a upgraded Apple's original SSD? Is it worth it in comparison to price to performance. Plus Apple Original is only available upto 1TB SSD where as OWC got 2TB.

I'm considering doing the same, but the price is too high around $320 USD on beetstech for 1TB but it comes with lifetime warranty. Is it worth it?
 

ctrl-alt-mat

macrumors newbie
Original poster
May 25, 2023
6
0
My Macbook is officially supporting macOS Ventura (13) so I stayed with it and did not return the OWC drive
 

varunpilankar

macrumors newbie
Nov 20, 2023
9
0
Even I'm on Ventura (MacOS 13) but the battery drain and sleep/hibernate issue with this OWC drive is kind of making it worthless. Due to which I started exploring other options like OpenCore Legacy Patcher to have Lilu, NVMeFix and SSDPmEnabler to patch Ventura to fix my third party ssd trouble.
 

ctrl-alt-mat

macrumors newbie
Original poster
May 25, 2023
6
0
I can't report any issue with my OWC drive on my end (battery, sleep, etc) other than the fact that macOS can't write the modified OpenCore EFI partition to it
 

retinamid2015

macrumors newbie
Dec 13, 2023
9
0
I can't report any issue with my OWC drive on my end (battery, sleep, etc) other than the fact that macOS can't write the modified OpenCore EFI partition to it
Download opencore configurator utility.
Go to tools, mount EFI.
See if you can copy a text file over to it or something?
Screenshot 2023-12-13 at 4.34.58 PM.png
 

retinamid2015

macrumors newbie
Dec 13, 2023
9
0
If you confirm you can't write anything on the OWC. Maybe install mac os to a usb drive. Then install oclp to the EFI on the usb drive. Then manually copy it over to the internal owc EFI from the OS booted off USB.
 

Toedels

macrumors newbie
Jan 22, 2024
1
1
Had the same problem. Eventually downloaded the other tool from that site (Clover Configurator). With that tool I could open the EFI partition from the USB stick and the EFI partition from the HD. Then I deleted all file from the EFI HD partition and copied all files from the USB EFI partition to the HD EFI partition. Now I can boot from HD without USB.
 
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old_crow7xx

macrumors newbie
Jul 28, 2024
1
0
Had the same problem. Eventually downloaded the other tool from that site (Clover Configurator). With that tool I could open the EFI partition from the USB stick and the EFI partition from the HD. Then I deleted all file from the EFI HD partition and copied all files from the USB EFI partition to the HD EFI partition. Now I can boot from HD without USB.
Dude, 1000 thank yous! I have been researching and troubleshooting for months. I have watched every video on the internet and lit up every forum/fb group / discord/ reddit. This was the only thing that fixed my Mac.

Does anyone know why mirroring the EFI tricks the board into booting what we want it to? I cannot for the life of me understand why it wouldn't just install the open core build to the internal EFI like normal, and then find it and boot. So weird that copying the EFI from the installer media did the trick. Does it have anything to do with BLESS? I never had to bless anything.

I also did the firmware ROM dump hack, and had installed enableGOP and still didn't see apple boot picker. I also tried blessing every drive, but you can't boot to recovery from open core, I couldn't see my apple boot, and when I did get to recovery terminal from legacy boot drives like Mojave, it would tell me it couldn't moon the EFI to bless it because it was an unknown file or file system.

Anyways- insane fix thank you so much!
 

bitmat

macrumors newbie
Aug 30, 2024
1
0
Many thanks Toedels
Had the same problem. Eventually downloaded the other tool from that site (Clover Configurator). With that tool I could open the EFI partition from the USB stick and the EFI partition from the HD. Then I deleted all file from the EFI HD partition and copied all files from the USB EFI partition to the HD EFI partition. Now I can boot from HD without USB.
 

esong

macrumors newbie
Nov 8, 2024
1
0
Had the same problem. Eventually downloaded the other tool from that site (Clover Configurator). With that tool I could open the EFI partition from the USB stick and the EFI partition from the HD. Then I deleted all file from the EFI HD partition and copied all files from the USB EFI partition to the HD EFI partition. Now I can boot from HD without USB.
Comin' in hot in 2024:

yes... YES...!!! It's ALIVE...!!!!!

Had I known about this my first go-around trying to install Sequoia on my MPB 11,5, I could have saved a few bucks, some precious time, and a lot of headspace. But there's no way I would have come across this otherwise given my lack of experience in all this OCLP franken-computer madness/ goodness.

Than you!
 
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