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28 .\" @(#)mknod.8 8.2 (Berkeley) 12/11/93
36 .Nd build special file
42 .Op Ar owner : Ns Ar group
46 utility creates device special files.
47 To make nodes manually, the four required arguments are:
49 .Bl -tag -width indent
51 Device name, for example
53 for a SCSI disk on an HP300 or a
59 device is a block type device such as a tape or disk drive which needs
60 both cooked and raw special files,
63 All other devices are character type devices, such as terminal
64 and pseudo devices, and are type
67 The major device number is an integer number which tells the kernel
68 which device driver entry point to use.
70 major device number to use for a particular device, check
71 .Pa /usr/src/sys/conf/majors .
73 The minor device number tells the kernel which subunit
74 the node corresponds to on the device; for example,
75 a subunit may be a file system partition
77 .It Ar owner : Ns Ar group
81 operand pair is optional, however, if one is specified, they both must be
85 may be either a numeric user ID or a user name.
86 If a user name is also a numeric user ID, the operand is used as a
90 may be either a numeric group ID or a group name.
91 Similar to the user name,
92 if a group name is also a numeric group ID, the operand is used as a
96 Major and minor device numbers can be given in any format acceptable to
100 indicates a hexadecimal number, and a leading
102 will cause the number to be interpreted as octal.
106 utility can be used to recreate deleted device nodes under a
108 mount point by invoking it using dummy arguments.
111 .Dl "mknod cd0 c 0 0"
115 is the name of the deleted device node.
119 like functionality is specific to