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OC does not list my BigSur Partition for Boot


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Starting with this issue description I will mention that I have a working BigSur Installation using Clover Bootloader but I wanted really to switch to opencore due to the reason everyone says that this will be the future..

 

I have invested much time to exactly create a USB Boot Media for my GB-BRi5H-8250 System as described at https://dortania.github.io/

After creating the media and Booting from the USB I will get following screen:

OC_Boot.thumb.jpg.fdbbdc42dbbc314c349451907fc5d3a6.jpg

 

The missing partition is my Boot Partition for BigSur...

Why does OC does not show my BigSur Boot Partition?

 

My Drive is partitioned as following:

drive4.png.3d4c1e4c530298b7340fa1b1cde95d3e.pngdrive3.png.fa5cd033d1e89579be2be486bf73b082.pngdrive2.png.7d4d3397d4519bff2a9b073337c54de5.pngdrive1.png.d36dfe41388b1d7a72952beb6c91f4c5.pngdrive0.png.fe34c5c9bd65639ce80a6c7bb4426e37.png

 

My Boot-Screen with Clover looks like this:

screenshot0.thumb.png.3032a87e507e3abf7a6ddc812358d6e2.png

 

My OC USB Drive looks as following:

1133515263_Bildschirmfoto2020-11-15um23_23_23.png.c1bf810c0a596f02b268a40c7725c2f5.png

2137286020_Bildschirmfoto2020-11-15um23_23_40.png.92a91038e42d17a6e06f4d89dca7045d.png

 

The last Boot-Try created following Logfile: opencore-2020-11-15-221811.txt

 

Why does OC does not show my BigSur Boot Partition?

 

Thanks for every help!

Your menu only shows a partially installed Big Sur partition/disk: 3. macOS Installer. You've got to boot that one twice before your target named Big Sur partition will be listed instead and that one will have to boot twice too to complete the installation and get you to Big Sur 1st boot system setting/finalisation.

I have checked your suggestions:

a) Misc->Security->ScanPolicy was and is set to 0 according the troubleshooting section of the Dortania guide

b) Tried every Troubleshooting hint from the guide regarding hidden boot drive

  • UEFI -> Quirks -> UnblockFsConnect: True
  • UEFI -> APFS -> EnableJumpstart: YES, HideVerbose: NO

c) 

Quote

Your menu only shows a partially installed Big Sur partition/disk: 3. macOS Installer. You've got to boot that one twice before your target named Big Sur partition will be listed instead and that one will have to boot twice too to complete the installation and get you to Big Sur 1st boot system setting/finalisation.

BigSur Installation was an Upgrade from Catalina using Clover Bootloader. BigSur is booting normally with Clover, so I think the Upgrade was successfully. I have also tried your suggestion to choose the "3. macOS Installer" which have not solved the missing entry. I can't remember how often I started this option (>10 times) but no success.

 

I think I should share my EFI Folder with you and also the log files created by opencore (see attachments)

 

Btw, I'm not sure why opencore does not list the device... looking at the opencore start screen the device was found:

IMG_6282.thumb.jpg.370707036f3d8cd18e84f85c613a371f.jpg

 

Any further suggestions?

EFI.zip

opencore-2020-11-16-194551.txt

opencore-2020-11-16-194704.txt

opencore-2020-11-16-194812.txt

opencore-2020-11-16-194952.txt

opencore-2020-11-16-195431.txt

opencore-2020-11-16-195658.txt

I have exactly the same issue! I did an update from Catalina to Big Sur using Clover. Everything works, except the App Store. Therefore I would like to switch to OC. I see only the MacOS Installer and Recovery. MacOS Installer gives me always a SMC not supported error. 

 

Hopefully anybody know, how we can make the partition available.

5 hours ago, madman said:

Everything works, except the App Store

Same here.

 

For the moment I have switched back to Catalina.

Using an USB Stick with Catalina Installation I was able to select a previous TimeMachine Backup and restored Catalina.

Curiously the Backups made under BigSur are shown as 10.15.7 Backups...

 

I did a fresh install of Big Sur using my OpenCore 0.6.4 USB Stick and now everything works on a spare HDD. The OpenCore menu changes from MacOS Installer to MacintoshHD and now I can boot without any issue. App Store works too. 

 

Seems to be an issue if you switch from Clover to OC. 

 

I would recommend you to do a fresh install with OpenCore on a spare drive and check it out.

2 hours ago, madman said:

I did a fresh install of Big Sur using my OpenCore 0.6.4 USB Stick and now everything works on a spare HDD. The OpenCore menu changes from MacOS Installer to MacintoshHD and now I can boot without any issue. App Store works too. 

 

Seems to be an issue if you switch from Clover to OC. 

 

I would recommend you to do a fresh install with OpenCore on a spare drive and check it out.

Full Agreement! Clover seems to be the problem, after restoring to Catalina and using OC the partition was found and could be started (after some config changes)

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