I'm trying to prevent automount on a device. The device contains only one FAT32 GPT partition.
I have set the GUID Partition attribute to 63 using gdisk (i.e. do not automount). I have also tried using Diskpart and GPT ATTRIBUTES to 0x8000000000000000 (i.e. no default drive letter).
While both these works on Windows 10, MacOS still mount my partition. How to prevent this on any computer I plug my device ?
I don't want to hide the partition because MacOS will ask to format. I don't want to add an entry to fstab because it works on a single computer only.