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28 .\" @(#)mknod.8 8.2 (Berkeley) 12/11/93
36 .Nd build special file
44 .Op Ar owner : Ns Ar group
49 utility is deprecated on modern
56 utility creates device special files.
57 To make nodes manually, the arguments are:
58 .Bl -tag -width indent
60 Device name, for example
68 device is a block type device such as a tape or disk drive which needs
69 both cooked and raw special files,
72 All other devices are character type devices, such as terminal
73 and pseudo devices, and are type
76 The major device number is an integer number which tells the kernel
77 which device driver entry point to use.
79 The minor device number tells the kernel which subunit
80 the node corresponds to on the device; for example,
81 a subunit may be a file system partition
83 .It Ar owner : Ns Ar group
87 operand pair is optional, however, if one is specified, they both must be
91 may be either a numeric user ID or a user name.
92 If a user name is also a numeric user ID, the operand is used as a
96 may be either a numeric group ID or a group name.
97 Similar to the user name,
98 if a group name is also a numeric group ID, the operand is used as a
102 Major and minor device numbers can be given in any format acceptable to
106 indicates a hexadecimal number, and a leading
108 will cause the number to be interpreted as octal.
112 utility can be used to recreate deleted device nodes under a
114 mount point by invoking it with only a filename as an argument.
121 is the name of the deleted device node.
125 like functionality is specific to
130 block devices were deprecated in favour of character
134 device nodes are managed by the device file system
141 device nodes may be created in regular file systems but such
142 nodes cannot be used to access devices.