RE: command

[Carter, Shaun G]

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 required arguments are:      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.      major   The major device number is an integer number which tells the ker-              nel which device driver entry point to use.  To learn what major              device number to use for a particular device, 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 ex-              ample, the unit may specify a particular SCSI disk, and the sub-              unit a partition on that disk.  bsdos format, for compatibility              with the BSD/OS mknod(8) (Currently  this  form  of              specification is only supported by the).      The -F option is used to create device nodes that may be used by an oper-      ating 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 format following -F 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. -----Original Message----- From: P K [mailto:[EMAIL PROTECTED]] Sent: Wednesday, December 12, 2001 2:50 PM To: [EMAIL PROTECTED] Subject: command Hi all What is the maining of the following command? mknod /dev/hdb1 b 22, 1 Thank you