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fdformat(1)                      User Commands                     fdformat(1)



NAME
       fdformat - format floppy diskette or PCMCIA memory card

SYNOPSIS
       fdformat  [-dDeEfHlLmMUqvx] [-b label] [-B filename] [-t dostype] [dev-
       name]

DESCRIPTION
       The fdformat utility has been superseded by rmformat(1), which provides
       most but not all of fdformat's functionality.

       fdformat  is  used to format diskettes and PCMCIA memory cards. All new
       blank diskettes or PCMCIA memory cards must be  formatted  before  they
       can be used.

       fdformat  formats  and verifies the media and indicates whether any bad
       sectors were encountered. All existing data on the diskette  or  PCMCIA
       memory  card,  if any, is destroyed by formatting. If no device name is
       given, fdformat uses the diskette as a default.

       By default, fdformat uses the configured capacity of the drive to  for-
       mat  the  diskette. A 3.5 inch high-density drive uses diskettes with a
       formatted capacity of 1.44MB.  A  5.25  inch  high-density  drive  uses
       diskettes with a formatted capacity of 1.2MB. In either case, a density
       option does not have to be specified to fdformat.  However,  a  density
       option  must  be  specified when using a diskette with a lower capacity
       than the drive's default. Use the  -H  option  to  format  high-density
       diskettes  (1.44MB  capacity)  in an extra-high-density (ED) drive. Use
       the -D option, the -l option, or the -L option to format  double-  den-
       sity  (or low-density) diskettes (720KB capacity) in an HD or ED drive.
       To format medium-density diskettes (1.2MB capacity), use the -M  option
       with -t nec (this is the same as using the -m option with -t nec).

       Extended density uses double-sided, extended-density or extra-high-den-
       sity (DS/ED) diskettes. Medium and high densities use the  same  media:
       double-sided, high-density (DS/HD) diskettes. Double (low) density uses
       double-sided, double-density (DS/DD

       D) diskettes. Substituting diskettes of one density  for  diskettes  of
       either  a  higher  or  lower  density  generally  does  not  work. Data
       integrity cannot be assured whenever  a  diskette  is  formatted  to  a
       capacity not matching its density.

       A  PCMCIA  memory card with densities from 512KB to 64MB may be format-
       ted.

       fdformat writes new identification and data fields for each  sector  on
       all  tracks unless the -x option is specified. For diskettes, each sec-
       tor is verified if the -v option is specified.

       After formatting and verifying,  fdformat  writes  an  operating-system
       label  on block 0. Use the -t dos option (same as the -d option) to put
       an MS-DOS file system on the diskette or PCMCIA memory card  after  the
       format  is  done. Use the -t nec option with the -M option (same as the
       -m option) to put an NEC-DOS file  system  on  a  diskette.  Otherwise,
       fdformat writes a SunOS label in block 0.

OPTIONS
       The following options are supported:

       -b label        Labels  the  media  with  volume  label. A SunOS volume
                       label is restricted to 8 characters. A DOS volume label
                       is restricted to 11 upper-case characters.



       -B filename     Installs  special  boot loader in filename on an MS-DOS
                       diskette. This option is only meaningful  when  the  -d
                       option (or -t dos) is  also specified.



       -D              Formats a 720KB (3.5 inch) or 360KB (5.25 inch) double-
                       density diskette (same as the -l or -L  options).  This
                       is  the  default  for double-density type drives. It is
                       needed if the drive  is  a  high-  or  extended-density
                       type.



       -e              Ejects  the  diskette  when  done.  This feature is not
                       available on all systems.



       -E              Formats a 2.88MB (3.5 inch) extended-density  diskette.
                       This is the default for extended-density type drives.



       -f              Forces  formatting,  that  is, this option does not ask
                       for confirmation before starting format.



       -H              Formats a 1.44MB (3.5 inch) or 1.2MB (5.25 inch)  high-
                       density  diskette. This is the default for high-density
                       type drives; it is needed if the drive is the extended-
                       density type.



       -M              Writes  a  1.2MB  (3.5 inch) medium-density format on a
                       high-density  diskette  (use  only  with  the  -t   nec
                       option). This is the same as using -m.

                       This feature is not available on all systems.



       -q              Quiet; does not print status messages.



       -t dos          Installs  an MS-DOS file system and boot sector format-
                       ting. This is equivalent to the DOS format  command  or
                       the -d option.



       -t nec          Installs  an NEC-DOS file system and boot sector on the
                       disk after formatting. This should be  used  only  with
                       the  -M  option.  This  feature is not available on all
                       systems.



       -U              Performs umount on any file systems and  then  formats.
                       See mount(1M).



       -v              Verifies each block of the diskette after the format.



       -x              Skips  the  format  and only writes a SunOS label or an
                       MS-DOS file system.



OPERANDS
       The following operands are supported:

       devname         Replaces devname with rdiskette0 (systems without  Vol-
                       ume Management) or floppy0 (systems with Volume Manage-
                       ment) to use the first  drive  or  rdiskette1  (systems
                       without  Volume  Management)  or  floppy1 (systems with
                       Volume Management) to use the second drive. If  devname
                       is  omitted,  the  first drive, if one exists, is used.
                       For PCMCIA  memory  cards,  replace  devname  with  the
                       device name for the PCMCIA memory card which resides in
                       /dev/rdsk/cNtNdNsN or /dev/dsk/cNtNdNsN. If devname  is
                       omitted,  the default diskette drive, if one exists, is
                       used.

                       If devname is omitted, the default diskette  drive,  if
                       one exists, will be used. N represents a decimal number
                       and can be specified as follows:

                       cN       Controller N




                       tN       Technology type N:



                                0x1       ROM
                                0x2       OTPROM
                                0x3       EPROM
                                0x4       EEPROM
                                0x5       FLASH
                                0x6       SRAM
                                0x7       DRAM



                       dN       Technology region in type N.



                       sN       Slice N.



                       The following options are  provided  for  compatibility
                       with  previous  versions of fdformat. Their use is dis-
                       couraged.

                       -d       Formats an MS-DOS floppy  diskette  or  PCMCIA
                                memory  card (same as -t dos). This is equiva-
                                lent to the MS-DOS FORMAT command.



                       -l       Formats a 720KB  (3.5  inch)  or  360KB  (5.25
                                inch)  double-density  diskette (same as -D or
                                -L). This is the  default  for  double-density
                                type  drives; it is needed if the drive is the
                                high- or extended-density type.



                       -L       Formats a 720KB  (3.5  inch)  or  360KB  (5.25
                                inch)  double-density  diskette (same as -l or
                                -D). This is the  default  for  double-density
                                type drives.



                       -m       Writes  a  1.2  MB  (3.5 inch) medium- density
                                format on a high-density  diskette  (use  only
                                with  the-  t nec option). This is the same as
                                using -M. This feature is not available on all
                                systems.




FILES
       /vol/dev/diskette0              Directory providing block device access
                                       for the media in floppy drive 0.



       /vol/dev/diskette0              Directory  providing  character  device
                                       access for the media in floppy drive 0.



       /vol/dev/aliases/floppy0        Symbolic  link  to the character device
                                       for the media in floppy drive 0.



       /dev/rdiskette                  Directory  providing  character  device
                                       access  for  the  media  in the primary
                                       floppy drive, usually drive 0.



       /vol/dev/dsk/cNtNdNsN           Directory providing block device access
                                       for  the  PCMCIA memory card. See OPER-
                                       ANDS for a description of N.



       /vol/dev/rdsk/cNtNdNsN          Directory  providing  character  device
                                       access  for the PCMCIA memory card. See
                                       OPERANDS for a description of N.



        /vol/dev/aliases/pcmemS        Symbolic link to the  character  device
                                       for  the PCMCIA memory card in socket S
                                       where S represents a PCMCIA socket num-
                                       ber.



       /dev/rdsk/cNtNdNsN              Directory  providing  character  device
                                       access for the PCMCIA memory card.  See
                                       OPERANDS for a description of N.



       /dev/dsk/cNtNdNsN               Directory providing block device access
                                       for the PCMCIA memory card.  See  OPER-
                                       ANDS for a description of N.



ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:


       tab()  allbox;  lw(2.750000i)|  lw(2.750000i).  ATTRIBUTE TYPEATTRIBUTE
       VALUE AvailabilitySUNWcsu


SEE ALSO
       cpio(1),  eject(1),  rmformat(1),  tar(1),  volcancel(1),  volcheck(1),
       volmissing(1),   volrmmount(1),   mount(1M),   newfs(1M),  prtvtoc(1M),
       vold(1M),  rmmount.conf(4),  vold.conf(4),  attributes(5),   pcfs(7FS),
       volfs(7FS)

   x86 Only
       fd(7D)

NOTES
        A  diskette or PCMCIA memory card containing a ufs file system created
       on a SPARC based system (by using fdformat and newfs(1M)), is not iden-
       tical  to a diskette or PCMCIA memory card containing a ufs file system
       created on an x86 based system. Do not  interchange  ufs  diskettes  or
       memory cards between these platforms. Use cpio(1) or tar(1) to transfer
       files on diskettes or memory cards between them. A diskette  or  PCMCIA
       memory  card  formatted using the -t dos option (or -d) for MS-DOS does
       not have the necessary system files, and  is  therefore  not  bootable.
       Trying to boot from it on a PC produces the following message:

       Non-System disk or disk error.
       Replace and strike any key when ready

BUGS
       Currently,  bad  sector mapping is not supported on floppy diskettes or
       PCMCIA memory cards. Therefore, a diskette or memory card  is  unusable
       if fdformat finds an error (bad sector).



SunOS 5.10                        16 Mar 2000                      fdformat(1)