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lssf(1m) [hpux man page]

lssf(1M)																  lssf(1M)

NAME

       lssf - list a special file

SYNOPSIS

       special_file ...

       special_file

DESCRIPTION

       In the first form, lists information about a special file.  For each special_file name, determines the major number of the special file and
       whether it is block or character (using It then scans the system for the device that is associated with the special file.  When the  device
       is found, the minor number of the special file is decoded.

       A  mnemonic  description  of  the  minor number is printed on standard output along with the hardware path (in other words, address) of the
       device.	Mnemonics used to describe the fields are closely related to the options used with (see mksf(1M)).

       In the second form, displays the list of stale device special files present in selected directories under the directory.

       In the third form, executes a Critical Resource Analysis (CRA) on the

   Options
       recognizes the following options:

	      Displays the Critical Resource Analysis (CRA) of

	      Displays the stale device special files present in the
		   directories below, which contain special files for mass storage devices.  The stale device special files  correspond  to  nodes
		   that  have  an entry in the system I/O configuration files but the corresponding device is not found.  The device special files
		   can either be legacy or persistent (see intro(7)).

DIAGNOSTICS

       Most diagnostic messages from are self explanatory.  Listed below are some messages deserving further  clarification.   Warnings  allow	to
       continue.

   Warnings
       There is no information about the device in the kernel.
		 The special file is not usable.  Use to remove the special file (see rmsf(1M)).

       The major number associated with the special file is not in the kernel.
		 Use to add the appropriate driver to the kernel (see kcmodule(1M)).

       The indicated device driver or device class
		 is  not present in the kernel.  An of a special file pointing to an unusable device fails.  To make the device usable, the appro-
		 priate device driver and/or device class must be added to the kernel using If the device is no longer needed, should be  used	to
		 remove the special files and update the system I/O configuration files.

       The file is not associated with an IO device.

EXAMPLES

       Suppose a special file is created with the command The command then produces:

       Suppose a special file is created with the command The command then produces:

       Display stale device special files:

       Display Critical Resource Analysis information for /dev/disk/disk7:

AUTHOR

       was developed by HP.

FILES

       I/O system special file

       I/O system configuration database

       I/O system configuration database

SEE ALSO

       insf(1M), kcmodule(1M), mksf(1M), rmsf(1M), intro(7).

																	  lssf(1M)

Check Out this Related Man Page

mknod(8)						      System Manager's Manual							  mknod(8)

NAME

       mknod - Creates a special file

SYNOPSIS

       /usr/sbin/mknod special_file [ b major_device# minor_device# |  c major_device# minor_device#]

       /usr/sbin/mknod filename p

DESCRIPTION

       The  mknod  command makes a directory entry.  The first argument is the name of the special device file.  Select a name that is descriptive
       of the device.

       The mknod command has two forms.  In the first form, the second argument is the b or c flag.  The last two arguments are numbers specifying
       the major_device, which helps the operating system find the device driver code, and the minor_device, the unit drive, or line number, which
       may be either decimal or octal.

       The assignment of major device numbers is specific to each system.  You can determine the device numbers by  examining  the  conf.c  system
       source file.  If you change the contents of the conf.c file to add a device driver, you must rebuild the kernel.

       In the second form of mknod, you use the p flag to create named pipes (FIFOs).

       Only the superuser can create a character or device special file.

FLAGS

       Indicates  that	the  special  file  corresponds to a block-oriented device (disk or tape) Indicates that the special file corresponds to a
       character-oriented device Creates named pipes (FIFOs)

EXAMPLES

       To create the special file for a new drive, /dev/disk/dsk20, with a major device number of 1 and a minor device number of 2,  enter:  mknod
       /dev/disk/dsk20	b   1	2 This command creates the special file, /dev/disk/dsk20, which is a block special file with major device number 1
       and minor device number 2.  To create a pipe named fifo, enter: mknod fifo p This command creates the pipe fifo, which is  not  necessarily
       in the current directory.

FILES

       Specifies the command path Specifies the system device numbers specification file delim off

																	  mknod(8)
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