mknod man page on Minix

Man page or keyword search:  
man Server   6208 pages
apropos Keyword Search (all sections)
Output format
Minix logo
[printable version]

MKNOD(8)		  BSD System Manager's Manual		      MKNOD(8)

NAME
     mknod — make device special file

SYNOPSIS
     mknod [-rR] [-F fmt] [-g gid] [-m mode] [-u uid] name [c | b]
	   [driver | major] minor
     mknod [-rR] [-F fmt] [-g gid] [-m mode] [-u uid] name [c | b] major unit
	   subunit
     mknod [-rR] [-g gid] [-m mode] [-u uid] name [c | b] number
     mknod [-rR] [-g gid] [-m mode] [-u uid] name p
     mknod -l

DESCRIPTION
     The mknod command creates device special files, or fifos.	Normally the
     shell script /dev/MAKEDEV is used to create special files for commonly
     known devices; it executes mknod with the appropriate arguments and can
     make all the files required for the device.

     To make nodes manually, the arguments are:

     -r	      Replace an existing file if its type is incorrect.

     -R	      Replace an existing file if its type is incorrect.  Correct the
	      mode, user and group.

     -F fmt   Create device nodes that may be used by an operating system
	      which uses device numbers packed in a different format than
	      NetBSD uses.  This is necessary when NetBSD is used as an NFS
	      server for netbooted computers running other operating systems.

	      The following values for the fmt are recognized: native, 386bsd,
	      4bsd, bsdos, freebsd, hpux, isc, linux, netbsd, osf1, sco,
	      solaris, sunos, svr3, svr4, and ultrix.

     -g gid   Specify the group for the device node.  The gid operand may be a
	      numeric group ID or a group name.	 If a group name is also a
	      numeric group ID, the operand is used as a group name.  Precede
	      a numeric group ID with a # to stop it being treated as a name.

     -m mode  Specify the mode for the device node.  The mode may be absolute
	      or symbolic, see chmod(1).

     -u uid   Specify the user for the device node.  The uid operand may be a
	      numeric user ID or a user name.  If a user name is also a
	      numeric user ID, the operand is used as a user name.  Precede a
	      numeric user ID with a # to stop it being treated as a name.

     name     Device name, for example “sd” for a SCSI disk on an HP300 or a
	      “pty” for pseudo-devices.

     b | c | p
	      Type of device.  If the device is a block type device such as a
	      tape or disk drive which needs both cooked and raw special
	      files, the type is b.  All other devices are character type
	      devices, such as terminal and pseudo devices, and are type c.
	      Specifying p creates fifo files.

     driver | major
	      The major device number is an integer number which tells the
	      kernel which device driver entry point to use.  If the device
	      driver is configured into the current kernel it may be specified
	      by driver name or major number.  To find out which major device
	      number to use for a particular device, use mknod -l, check the
	      file /dev/MAKEDEV to see if the device is known, or check the
	      system dependent device configuration file:

		    “/usr/src/sys/arch/<arch>/<arch>/conf.c”

	      (e.g.  /usr/src/sys/arch/vax/vax/conf.c).

     minor    The minor device number tells the kernel which one of several
	      similar devices the node corresponds to; for example, it may be
	      a specific serial port or pty.

     unit and subunit
	      The unit and subunit numbers select a subset of a device; for
	      example, the unit may specify a particular SCSI disk, and the
	      subunit a partition on that disk.	 (Currently this form of spec‐
	      ification is only supported by the bsdos format, for compatibil‐
	      ity with the BSD/OS mknod).

     number   A single opaque device number.  Useful for netbooted computers
	      which require device numbers packed in a format that isn't sup‐
	      ported by -F.

     -l	      List the device drivers configured into the current kernel
	      together with their block and character major numbers.

SEE ALSO
     chmod(1), mkfifo(1), mkfifo(2), mknod(2), MAKEDEV(8)

HISTORY
     A mknod command appeared in Version 6 AT&T UNIX.  The -F option appeared
     in NetBSD 1.4.  The -g, -l, -m, -r, -R, and -u options, and the ability
     to specify a driver by name appeared in NetBSD 2.0.

BSD				 June 17, 2004				   BSD
[top]

List of man pages available for Minix

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net