.B \-b
.I boundary_alignment
] [
+.B \-s
+.I sector_size
+] [
.B \-c
.I cluster_size
] [
.B \-L
.I volume_label
] [
+.B \-U
+.I volume_guid
+] [
.B \-\-pack\-bitmap
] [
.B \-v
>128 GiB \[<=]512 GiB 256 KiB 32 MiB
>512 GiB \[<=]2 TiB 512 KiB 64 MiB
.TE
+The default is always 1 MiB.
+.TP
+.BR \-s ", " \-\-sector\-size =\fIsize\fR
+Specifies the sector size of the exFAT file system.
+The \fIsize\fR argument is specified in bytes or may be specified with
+\fBk\fR/\fBK\fR suffix for kibibytes and must either 512, 1024, 2048 or 4096
+bytes.
+The default value is the sector size reported by the device, or 512 bytes if the
+device sector size cannot be determined.
.TP
.BR \-c ", " \-\-cluster\-size =\fIsize\fR
Specifies the cluster size of the exFAT file system.
The \fIsize\fR argument is specified in bytes or may be specified with
\fBm\fR/\fBM\fR suffix for mebibytes or \fBk\fR/\fBK\fR suffix for kibibytes
and must be a power of two.
+The default value is described in the following table:
+.TS
+center;
+cb1s6cb,nnn.
+Card Capacity Range Cluster Size
+_
+ \[<=]256 MiB 4 KiB
+>256 MiB \[<=]32 GiB 32 KiB
+>32 GiB 128 KiB
+.TE
.TP
.BR \-f ", " \-\-full\-format
Performs a full format.
.BR \-L ", " \-\-volume\-label =\fIlabel\fR
Specifies the volume label to be associated with the exFAT filesystem.
.TP
+.BR \-U ", " \-\-volume\-guid =\fIguid\fR
+Specifies the volume GUID to be associated with the exFAT filesystem.
+.TP
.B \-\-pack\-bitmap
Attempts to relocate the exFAT allocation bitmap so that it ends at the
alignment boundary immediately following the FAT rather than beginning at that
If there is insufficient space for the bitmap there, then this option will have
no effect, and the bitmap will be aligned at the boundary as by default.
.TP
+.BR \-q ", " \-\-quiet
+Prints only error messages while creating the exFAT filesystem.
+.TP
.BR \-v ", " \-\-verbose
Prints verbose debugging information while creating the exFAT filesystem.
.TP