Das mal probiert ?
quelle
https://www.easeus.com/mac-fil…rive-to-fat32-on-mac.html
Method 2. Convert/format USB flash drive to FAT32 by using Mac Command Line
1. Connect your USB flash drive to your Mac computer.
2. Hit cmd + space to run Spotlight, type: terminal and hit Enter.
[Blockierte Grafik: https://www.easeus.com/images/en/screenshot/data-recovery-mac/format-usb-to-fat32-on-mac-3.png]
3. Type:diskutil list and find out which disk is your USB drive.
In the below picture, you can see that /dev/disk2 is the USB drive.
4. Type: sudo diskutil eraseDisk FAT32 MBRFormat /dev/disk2.
- sudo gives you user right.
- Diskutil calls disk utility program.
- eraseDisk commands to format.
- FAT32 sets the file system.
- MBRFormat tells disk utility to format with a Master Boot Record.
- /dev/disk2 is the location of the USB drive.
[Blockierte Grafik: https://www.easeus.com/images/en/screenshot/data-recovery-mac/format-usb-to-fat32-on-mac-4.png]
Wait for the process to complete and after this, you can type: diskutil list in command again to check if the formatting has been successful.
After this, you should be able to use USB with FAT32 file system to save files again.