Update volume name in OpenCore picker

[miliuco]

Update macOS volume name in OpenCore picker

OpenCore uses .disk_label file if it exists, otherwise it tries .contentDetailsand, if this doesn't exist, it tries .disk_label.contentDetails.

 

 

You have 3 possible methods.

Using bless

• In Terminal: diskutil info / | grep "APFS Volume Group"
• You get a long string with letters and numbers (e.g. 654436D1-8026-4D83-81DA-942C2FE63961)
• cd /System/Volumes/Preboot/654436D1-8026-4D83-81DA-942C2FE63961/System/Library/CoreServices/
• sudo bless --folder . --label "NOMBRE" where NOMBRE is the name you want to be applied
• Reboot.

To check, in Terminal, one of these commands:

cd /System/Volumes/Preboot/654436D1-8026-4D83-81DA-942C2FE63961/System/Library/CoreServices/
pico .disk_label.contentDetails

or
 

printf "NOMBRE" | sudo tee .disk_label.contentDetails; echo sudo chgrp wheel .disk*

Editing text file

• SIP disabled
• mount Preboot volume from Terminal (I see Preboot volume without mounting it but other users have to mount that volume)
• sudo pico /System/Volumes/Preboot/UUID-number/System/Library/CoreServices/.contentDetailsand /System/Volumes/Preboot/UUID-number/System/Library/CoreServices/.disk_label.contentDetails(hidden files)
• change the volume name to anything else (plain text, make it simple)
• reboot.

Note: UUID-number is the UUID of the APFS volume group where Preboot volume is located, you can do diskutil list and diskutil info diskx where diskx is the APFS Container Scheme.

Intel Power Gadget

Install or reinstall Intel Power Gadget and reboot. It rebuilds preboot Volume and the new name is set.

 

 

Edited May 7 by miliuco
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