I have a 8GB flash drive that currently is split into 2 partitions. I want to format it with exFat as a single partition partitionless. I tried

mkfs.exfat -n "8GB flash drive" -I /dev/sdc

but it says

mkfs.exfat: invalid option -- 'I'

I just tried that and it works:

Remove other file systems (only their "Magick Numbers" actually)

$ wipefs --all /dev/sdc

Then make the file system directly on the device file, without any additional options

$ mkfs.exfat -n "8GB flash drive" /dev/sdc
  • FWIW single partition != partitionless – Tom Yan Mar 15 '16 at 12:15

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