How to change Icons of boot entrey in OpenCore Boot menu?

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Edit your EFI "Config.plist"

goto Misc > Boot set the values:

HideAuxiliary = True PickerAttributes = 19 LauncherOption = Full PickerVariant = Auto ShowPicker = True

Save the Config.plist

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For Mac-OS

Set ICON

you need to add ".VolumeIcon.icns" into preboot partition/folder of your mac.

• a: Download OpenCanpoy compatible icon file , you can download from https://github.com/blackosx/OpenCanopyIcons for example my icon file is located on desktop with Apple.icns name.

• b: open Terminal and run commands

sudo -i 

enter your password to run commands as root

• c: type "cp" then drag Apple.icns into terminal window , then type commands below

you must change USERNAME and UIID Number with your own.

UIID must be like this: 51F87655F-1587-4AE1-8971-07A197956217

USERNAME : your user name

cp /Users/USERNAME/Desktop/Apple.icns /System/Volumes/Preboot/UIID/.VolumeIcon.icns

then reboot your mac to see new icon.

Set Boot-menu Name

Method A: just rename the Installed Mac OS Partition form Disk Utility

Method B: run command in terminal

change name to "MacOS Ventura"

bless --folder /  --label MacOS\ Ventura

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For Microsoft Windows OS

Set ICON

All Steps and commands are running from macOS

mount Windows EFI partition copy your Icon.icns into root of EFI folder as .VolumeIcon.icns

ex: using Terminal in macOS

Icon Name: Icon.icns

Windows EFI Address: Volumes/NO\ NAME/

sudo cp Icon.icns /Volumes/NO\ NAME/.VolumeIcon.icns

Set Boot-menu Name

1. mount Windows EFI Partition

you can mount EFI partition using OpenCore Configurator or MountEFI

2. create Mac-OS compatible disk-name's file using bless command into Windows EFI Boot partition

{FOLDER_PATH}=WindowsEFIpartitionDrive/EFI/Microsoft/Boot

{LABEL_TEXT}=your desired disk name

run this commands from terminal

sudo bless --folder /Volumes/NO\ NAME/EFI/Microsoft/Boot/ --label "Windows 11"

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For Linux OS

Set ICON

Login into your Linux copy Icon.icns file into root of your Linux distro

ex: Icon Name: Icon.icns

sudo cp Icon.icns /.VolumeIcon.icns

Set Boot-Menu Name

Boot into Your Linux machine and change the "PRETTY_NAME" value from "/usr/lib/os-release" file.

open Terminal and run commands below

sudo nano /usr/lib/os-release

then change the value of PRETTY_NAME to your custom name.

PRETTY_NAME="Linux Ubuntu"

save [Ctrl + s] and exit [Ctrl +x].

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Visibility

be care of this command, don't disable main OS.

Disabled = Don't Display OS entry Enabled = Show The OS Entry in OpenCore BootMenu

echo "Disabled" > /System/Volumes/Preboot/UIID/.contentVisibility

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Resources:

from open core official document:

– .VolumeIcon.icns file at the Preboot volume root (/System/Volumes/Preboot/, when mounted at the default location within macOS) for APFS (otherwise).
– .VolumeIcon.icns file at the volume root for other filesystems.



0x0002 — OC_ATTR_USE_DISK_LABEL_FILE, use custom prerendered titles for boot entries from .disk_label (.disk_label_2x) file next to the bootloader for all filesystems. These labels can be generated via the disklabel utility or the 

bless --folder {FOLDER_PATH} --label {LABEL_TEXT} 

command. When prerendered labels are disabled or missing, use label text in .contentDetails (or .disk_label.contentDetails) file next to bootloader if present instead, otherwise the entry name itself will be rendered.