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.\" Copyright (C) 2011 Andrew Nayenko
.\"
.TH MKEXFATFS 8 "January 2011"
.SH NAME
.B mkexfatfs
\- create an exFAT file system
.SH SYNOPSIS
.B mkexfatfs
[
.B \-i
.I volume-id
]
[
.B \-n
.I volume-name
]
[
.B \-p
.I partition-first-sector
]
[
.B \-s
.I sectors-per-cluster
]
[
.B \-v
]
.I device
.SH DESCRIPTION
.B mkexfatfs
creates an exFAT file system on a block device.
.I device
is a special file corresponding to the device.
.SH OPTIONS
Command line options available:
.TP
.BI \-i " volume-id"
A 32-bit hexadecimal number. By default a value based on current time is set.
.TP
.BI \-n " volume-name"
Volume name (label), up to 15 characters. By default no label is set.
.TP
.BI \-p " partition-first-sector"
First sector of the partition starting from the beginning of the whole disk.
exFAT super block has a field for this value but in fact it's optional and
does not affect anything. Default is 0.
.TP
.BI \-s " sectors-per-cluster"
Number of physical sectors per cluster (cluster is an allocation unit in
exFAT). Must be a power of 2, i.e. 1, 2, 4, 8, etc. Cluster size can not
exceed 32 MB. Default cluster sizes are:
4 KB if volume size is less than 256 MB,
32 KB if volume size is from 256 MB to 32 GB,
128 KB if volume size is 32 GB or larger.
.TP
.BI \-v
Print version and copyright.
.SH EXIT CODES
Zero is returned on successful creation. Any other code means an error.
.SH AUTHOR
Andrew Nayenko
.SH SEE ALSO
.BR mkfs (8)
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