FSTYP_MSDOS(8) BSD System Manager's Manual FSTYP_MSDOS(8)NAME
fstyp_msdos -- check for an MSDOS FAT volume
SYNOPSIS
fstyp_msdos device
DESCRIPTION
The fstyp_msdos utility is not intended to be run directly, but rather called by fstyp(8) while it is trying to determine which file system
type is present on the given device. It returns 1 if it thinks the device contains an MSDOS FAT volume, and 0 otherwise.
SEE ALSO fstyp(8)BSD August 15, 2005 BSD
Check Out this Related Man Page
NEWFS_EXFAT(8) BSD System Manager's Manual NEWFS_EXFAT(8)NAME
newfs_exfat -- construct a new ExFAT file system
SYNOPSIS
newfs_exfat [-N] [-R] [-I volume-serial-number] [-S bytes-per-sector] [-a sectors-per-FAT] [-b bytes-per-cluster] [-c sectors-per-cluster]
[-n number-of-FATs] [-s total-sectors] [-v volume-name] special
DESCRIPTION
The newfs_exfat utility creates an ExFAT file system on device special. If the -R option is not given, and the device is already formatted
as ExFAT, it will preserve the partition offset, bytes per cluster, FAT offset and size, number of FATs, offset to start of clusters, number
of clusters, volume serial number, and volume name (label). If a volume name was specified via the -v option, that name is used instead of
the volume's previous name.
The options are as follow:
-N Don't create a file system: just print out parameters.
-R Do not check whether the device is currently formatted as ExFAT. Always derive the partition offset, bytes per cluster, FAT offset
and size, and offset to start of clusters based on the device type and size.
-I volume-serial-number
Volume ID, a 32-bit integer.
-S bytes-per-sector
Number of bytes per sector. Acceptable values are powers of 2 in the range 512 through 4096.
-a sectors-per-FAT
Number of sectors per FAT.
-b bytes-per-cluster
File system block size (bytes per cluster). Acceptable values are powers of 2 in the range 512 through 33554432.
-c sectors-per-cluster
Sectors per cluster. Acceptable values are powers of 2 in the range 1 through 65536.
-n number-of-FATs
Number of FATs. Acceptable values are 1 or 2. The default is 1. Using any value other than 1 is discouraged, and may be incompati-
ble with other devices.
-s total-sectors
The total number of sectors in the device.
-v volume-name
Volume name (label). The name will be converted to UTF-16, and must be no longer than 11 UTF-16 characters. ASCII control charac-
ters and some punctuation characters are not allowed (similar to DOS 8.3-style names). NOTE: The volume name may be an empty (zero-
length) string.
EXAMPLES
newfs_exfat /dev/disk0s1
Create a file system, using default parameters (or existing ExFAT layout), on /dev/rdisk0s1.
newfs_exfat -v Hello disk2s1
Create a file system with the name "Hello" on /dev/rdisk2s1.
SEE ALSO mount_exfat(8), fsck_exfat(8)DIAGNOSTICS
Exit status is 0 on success and 1 on error.
HISTORY
The newfs_exfat command appeared in Mac OS X 10.6.3.
Darwin January 19, 2010 Darwin
Manufacturer Links
General Information
Home Page: IBM United States
Documentation/Information: IBM System p - UNIX servers: Support and services
pSeries and AIX Information Center
Developerworks AIX Wiki: AIX Wiki
AIX for System Administrators
In-depth information from IBM:
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