DOKK / manpages / debian 11 / exfatprogs / mkfs.exfat.8.en
mkfs.exfat(8) System Manager's Manual mkfs.exfat(8)

mkfs.exfat - create an exFAT filesystem

mkfs.exfat [ -b boundary_alignment ] [ -c cluster_size ] [ -f ] [ -h ] [ -L volume_label ] [ -v ] device
mkfs.exfat -V

mkfs.exfat creates an exFAT filesystem by writing on a special file using the values found in the arguments of the command line. It is invoked automatically by mkfs(8) when it is given the -t exfat option.

As an example, to make a filesystem on the first partition on the first SCSI disk, use:

mkfs.exfat /dev/sda1

Specify the alignment for FAT and start of cluster. Boundary alignment can be specified in m/M for megabytes and k/K for kilobytes. It should be a power of two. Some media like sdcard need this.
Specify the cluster size. Cluster size can be specified in m/M for megabytes and k/K for kilobytes.
Performs a full format. This zeros the entire disk device while creating the exFAT filesystem.
Prints the help and exit.
Specifies the volume label associated with the exFAT filesystem.
Prints verbose debugging information while creating the exFAT filesystem.
Prints the version number and exits.

mkfs(8), mount(8),