FRP initialization of FAT32 formatted removable media gets stuck at 80-95% on macOS 14.x (Sonoma)

Technical Articles ID: KB96790
Last Modified: 2023-09-29 04:37:27 Etc/GMT

Environment

File and Removable Media Protection (FRP) for macOS - version 5.4.4 and later (assigned with Enforce or Allow Offsite encryption policies)

macOS 14.x (Sonoma)
Removable media formatted with FAT32

Problem

When an attempt is made to initialize a FAT32-formatted removable media using a FRP 5.4.4 client for macOS 14.x, the initialization gets stuck at 80–95% and never completes.

Cause

The cause is under investigation.

Solution

This issue is being evaluated by Engineering for consideration in a future release of the product.

As a temporary measure, implement one of the following workarounds.

Workaround 1

Use exfat-formatted removable media, instead of FAT32.

Workaround 2

Initialize the device on FRP Windows 5.4.4 or later and use it on macOS 14.x.

Workaround 3

If neither of the workarounds are an option, perform the following workaround steps before attempting initialization:

NOTE: You'll require sudo access for the steps below.

Insert the FAT32-formatted device on FRP running macOS 14.x.
Click NO in the pop-up that prompts for initialization or encryption.
Optionally, another pop-up might appear indicating that the device is 'read-only'. This is a temporary issue; hence, click OK.
Open macOS 'Disk Utility' and unmount the device.
At the terminal, run the following command where <volume name> and <device name> are as seen in the disk utility for the removable media:

sudo mkdir /Volumes/<volume name> && sudo mount_msdos /dev/<device name> /Volumes/<volume name>
Respond Yes to the FRP initialization pop-up that automatically shows up once the device mounts back again.

Knowledge Center

FRP initialization of FAT32 formatted removable media gets stuck at 80-95% on macOS 14.x (Sonoma)

Environment

Problem

Cause

Solution

Workaround 1

Workaround 2

Workaround 3

Affected Products

Title

Title

Knowledge Center

FRP initialization of FAT32 formatted removable media gets stuck at 80-95% on macOS 14.x (Sonoma)

Environment

Problem

Cause

Solution

Workaround 1

Workaround 2

Workaround 3

Affected Products

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Title

Title