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updfstab(8)				  Red Hat Linux 			      updfstab(8)

       updfstab - update /etc/fstab to reflect removable devices

       updfstab [-nt] [--usage]

       updfstab is designed to keep /etc/fstab consistent with the devices plugged into your sys-
       tem. It looks for devices such as cdroms, zip and jaz drives, ls120  drives,  and  digital
       cameras	on  the  SCSI and IDE buses. USB devices look like SCSI devices to user space, so
       those are supported as well, but are only added if they are currently attached to the sys-
       tem (having a scsi device assigned to them is not sufficient).

       Devices	which  updfstab adds to /etc/fstab are marked with the kudzu mount option to dis-
       tinguish them from other devices.  updfstab will not remove devices from /etc/fstab unless
       they  are  marked  with	the  kudzu mount option. It also ignores devices that are already
       listed in /etc/fstab, or which have multiple partitions on the media currently inserted.

	      Use the configuration specified by path, rather then /etc/updfstab.conf.


	      Normally, updfstab tries to touch /etc/fstab  as	little	as  possible.  When  this
	      option  is  given,  it  will  instead  move all of the devices with the kudzu mount
	      option to the end of the file, and will list the devices	in  the  same  order  the
	      internal probe returns.


	      When  this  option  is  specified,  updstab  does  not  update the /etc/fstab file.
	      Instead, it displays the fstab entries it would use to standard out. If no  changes
	      need  to be made, it outputs the string (nothing to do) rather then a full filesys-
	      tem table.

       The devices updfstab looks for are specified by its configuration file, /etc/updfstab.conf
       by  default.  It defines a number of devices which updfstab looks for on the system, along
       with various attributes of that device. If a single device name is given  multiple  times,
       later values override those given earlier. However, match directives accumulate; all spec-
       ified matches remain in effect for that device.	The default value of flags may be changed
       by  specifying  a new value for that flag outside of any device section, which changes the
       default for all future devices.

       A simple configuration file looks like this:
       # sample updfstab configuration file
       symlink false

       device cdrom {
	   symlink true
	   match cdrom

       device zip {
	   match hd zip
	   match floppy "zip"

       Here two devices are specified, cdrom and zip. If a cdrom device is found on the system, a
       /dev/cdrom  is  created pointing to the /dev entry for the device, and /mnt/cdrom is added
       to /etc/fstab. The next entry looks for hard drive devices with zip in  their  description
       as  well  as  floppy devices with zip in their description. If either is found /mnt/zip is
       added to /etc/fstab, but no symlink is created.

       Here is the complete list of directives which may be used:

       device name
	      Set attributes for device name name. The name is used in the /etc/fstab  entry  and
	      for any symbolic links which are created.

       include path
	      Parsing  of  the	current  configuration file is stopped, and the file specified by
	      path is read for current configuration information.   Multiple  include  directives
	      may be given, but they may not appear inside of device sections.

       match class string
	      This  directive  adds  a new rule for this device type; devices found on the system
	      which match this rule are considered a device of the type whose section  the  match
	      directive appears in. The class must be cdrom, floppy, or hd. If string appears, it
	      must be a substring of the physical device's description for the rule to match.

       nofstab val
	      If val is true, updfstab does not add a mount entry to /etc/fstab. This  is  mainly
	      useful in conjunction with symlink.

       partition num
	      Specifies a default partition number which should be mounted from this device. If 0
	      is used, no partition number appears. updfstab always  scans  /proc/partitions  for
	      the proper partition number before relying on this value.

       skip val
	      The  device entry is skipped. This lets a configuration file undefine a device that
	      was defined earlier (such as in an included file). val should be true or false.

       symlink val
	      If val is true, updfstab creates a symbolic link in the /dev directory pointing  to
	      the actual device. This symbolic link is then used in /etc/fstab.



       Erik Troan <ewt@redhat.com>

Red Hat, Inc.				   29 Jan 2003				      updfstab(8)
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