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

NAME
       hald - HAL daemon

SYNOPSIS
       hald [options]

DESCRIPTION
       hald  is	a daemon that maintains	a database of the devices connected to
       the system system in real-time. The daemon connects to the D-Bus	system
       message	bus  to	 provide an API	that applications can use to discover,
       monitor and invoke operations on	devices. For  more  information	 about
       both  the  big  picture and specific API	details, refer to the HAL spec
       which can be found in  /usr/local/share/doc/hal/spec/hal-spec.html  de-
       pending on the distribution.

OPTIONS
       The following options are supported:

       --daemon=yes|no
	      Specify whether to run in	the foreground or the background.

       --verbose=yes|no
	      Enable verbose debug output.

       --use-syslog
	      Enable  logging of debug output to the syslog instead of stderr.
	      Use this option only together with --verbose.

       --help Print out	usage.

       --version
	      Print the	version	of the daemon and exit.

BUGS AND DEBUGGING
       Please send bug reports to either the distribution or the  HAL  mailing
       list,  see  http://lists.freedesktop.org/mailman/listinfo/hal on	how to
       subscribe.

       First, to obtain	useful debug traces you	will need  to  have  debuginfo
       packages	 installed.  On	 a  Fedora system this is in the hal-debuginfo
       package and can be installed via	the yum	update program.

       Second, shut down the existing hald daemon instance; on a Fedora	system
       this is achieved	by

       /usr/local/etc/init.d/haldaemon stop

       After having shut down the daemon, you might want to run

       pkill hald

       to ensure that all the helper processe of hald are killed too. To start
       the HAL daemon, use

       /usr/local/sbin/hald --daemon=no	--verbose=yes

       If the daemon crashes, you can start it under a debugger	via

       gdb /usr/local/sbin/hald

       and then	typing

       run --daemon=no --verbose=yes

       at the (gdb) prompt. To capture a back trace, use the  bt  command  and
       attach this to the bug report.

       Please also attach the output of	lshal(1) in the	bug report if possible
       (it's not possible if the hald daemon crashed). If the  nature  of  the
       bug  has	 to  do	with hotplugging, attach two outputs of	lshal(1) - one
       before the device hotplug event and one after.

SEE ALSO
       udev(7),	dbus-daemon(1),	lshal(1),  hal-set-property(1),	 hal-get-prop-
       erty(1),	 hal-find-by-property(1),  hal-find-by-capability(1),  hal-is-
       caller-locked-out(1)

AUTHOR
       Written by David	Zeuthen	<david@fubar.dk> with a	lot of help from  many
       others.

								       HALD(8)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | BUGS AND DEBUGGING | SEE ALSO | AUTHOR

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