mknod(1m) [opensolaris man page]

mknod(1M)						  System Administration Commands						 mknod(1M)

NAME

       mknod - make a special file

SYNOPSIS

       mknod name b major minor

       mknod name c major minor

       mknod name p

DESCRIPTION

       mknod makes a directory entry for a special file.

OPTIONS

       The following options are supported:

       b    Create a block-type special file.

       c    Create a character-type special file.

       p    Create a FIFO (named pipe).

OPERANDS

       The following operands are supported:

       major	The major device number.

       minor	The  minor  device  number; can be either decimal or octal. The assignment of major device numbers is specific to each system. You
		must be the super-user to use this form of the command.

       name	A special file to be created.

USAGE

       See largefile(5) for the description of the behavior of mknod when encountering files greater than or equal to 2 Gbyte ( 2^31 bytes).

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       ftp(1), in.ftpd(1M), mknod(2), symlink(2), attributes(5), largefile(5)

NOTES

       If mknod(2) is used to create a device, the major and minor device numbers are always interpreted by the kernel running on that machine.

       With the advent of physical device naming, it would be preferable to create a symbolic link to the physical name  of  the  device  (in  the
       /devices subtree) rather than using mknod.

SunOS 5.11							    16 Sep 1996 							 mknod(1M)

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

NAME

     mknod -- make device special file

SYNOPSIS

     mknod [-F format] name [c | b] major minor
     mknod [-F format] name [c | b] major unit subunit
     mknod name [c | b] number
     mknod name w

DESCRIPTION

     The mknod command creates device special files.

     To make nodes manually, the required arguments are:

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

     b | c | w
	     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.  Whiteout nodes are type w.  All other devices are character type devices, such as terminal and pseudo devices, and are
	     type c.

     major   The major device number is an integer number which tells the kernel which device driver entry point to use.

     minor   The minor device number tells the kernel which one of several similar devices the node corresponds to; for example, it may be a spe-
	     cific 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 specification is only supported by the bsdos format, for compatibility with the
	     BSD/OS mknod(8).)

     Device numbers for different operating systems may be packed in a different format.  To create device nodes that may be used by such an oper-
     ating system (e.g. in an exported file system used for netbooting), the -F option is used.  The following formats are recognized: native,
     386bsd, 4bsd, bsdos, freebsd, hpux, isc, linux, netbsd, osf1, sco, solaris, sunos, svr3, svr4 and ultrix.

     Alternatively, a single opaque device number may be specified.

SEE ALSO

     mkfifo(1), mkfifo(2), mknod(2)

HISTORY

     A mknod command appeared in Version 6 AT&T UNIX.  The -F option appeared in NetBSD 1.4.

NetBSD 1.4							September 11, 1998							NetBSD 1.4