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writedisklabel(9r)
NAME
  writedisklabel - Disk: Writes a disk label

SYNOPSIS
  int writedisklabel(
	  dev_t dev,
	  int (*strategy) (),
	  register struct disklabel *lp );

ARGUMENTS
  dev Specifies the major and minor numbers for this device. Device driver
      writers use the dev_t data type to represent a device's major and minor
      numbers. This data type is an abstraction of the internal
      representations of the major and minor numbers.  Driver writers do not
      need to know how the system internally represents the major and minor
      numbers.

  strategy
      Specifies the device driver's strategy interface.

  lp  Specifies a pointer to the disklabel structure to be written.

DESCRIPTION
  The writedisklabel interface writes a disklabel to a device, using the
  device driver's strategy interface.

  The DIOCWDINFO ioctl command calls writedisklabel to write the disk label
  to disk. The device driver should first call setdisklabel to validate the
  new settings.

RETURN VALUES
  Upon successful completion, writedisklabel returns the value zero (0).

  Otherwise, it returns one of the following values:

  EXDEV	  The interface tries to write the disklabel to any partition other
	  than partition zero.

  ESRCH

  EINVAL  An error occurred while writing the disklabel.








SEE ALSO
  Data Structures: disklabel(9s)


  Kernel Interfaces: readdisklabel(9r), setdisklabel(9r)

Index for Section 9

Alphabetical listing for W

Top of page