hwinfo

HWINFO(8) System configuration HWINFO(8)

NAME

   hwinfo - probe for hardware

SYNOPSIS

   hwinfo [ OPTIONS ]

DESCRIPTION

   hwinfo is used to probe for the hardware present in the system. It can be used to generate a system overview log which can be later used for support.

OPTIONS

   Note that running hwinfo without any options is roughly equivalent to 'hwinfo --all --log=-'.

   --<HARDWARE_ITEM>
          This option can be given more than once.  Probe for a particular HARDWARE_ITEM. Available hardware items are:

          all,  arch,  bios, block, bluetooth, braille, bridge, camera, cdrom, chipcard, cpu, disk, dsl, dvb, fingerprint, floppy, framebuffer, gfxcard, hub, ide, isapnp, isdn, joystick,
          keyboard, memory, mmc-ctrl, modem, monitor, mouse, netcard, network, partition, pci, pcmcia, pcmcia-ctrl, pppoe, printer, redasd, reallyall, scanner, scsi, smp, sound, storage-
          ctrl, sys, tape, tv, uml, usb, usb-ctrl, vbe, wlan, xen, zip

          Note that if this option is missing, no hardware probing will be done!

   --short
          Show only a summary. Use this option in addition to a hardware probing option.

   --listmd
          Normally hwinfo does not report RAID devices. Add this option to see them.

   --only DEVNAME
          This option can be given more than once. If you add this option only entries in the device  list  matching  DEVNAME  will  be  shown.   Note  that  you  also  have  to  specify
          --<HARDWARE_ITEM> to trigger any device probing.

   --save-config SPEC
          Store config for a particular device below /var/lib/hardware. SPEC can be a device name, an UDI, or 'all'. This option must be given in addition to a hardware probing option.

   --show-config UDI
          Show saved config data for a particular device.

   --map  If  disk  names have changed (e.g. after a kernel update) this prints a list of disk name mappings. Note that you must have used --save-config at some point before for this can
          work.

   --debug N
          Set debug level to N. The debug info is shown only in the log file.  If you specify a log file, the debug level is implicitly set to a reasonable  value  (N  is  a  bitmask  of
          individual flags).

   --verbose
          Increase verbosity. Only together with --map.

   --log FILE
          Write log info to FILE.  Don't forget to also specify --<HARDWARE_ITEM> to trigger any device probing.

   --dump-db N
          Dump hardware data base. N is either 0 for the external data base in /var/lib/hardware, or 1 for the internal data base.

   --version
          Print libhd version.

   --help Print usage.

ENVIRONMENT

   hwprobe  can  hold  a  comma-separated  list  of  probing  flags preceded by '+' or '-' to be turned on or off. To get a complete list of supported flags, run 'hwinfo -all' (note: not
   '--all') and look at the top of the output.

   hwinfo also looks at /proc/cmdline for a hwprobe option.

EXAMPLES

   - show all disks
          hwinfo --disk

   - just an overview
          hwinfo --short --block

   - show a particular disk
          hwinfo --disk --only /dev/sdb

   - save disk config state
          hwinfo --disk --save-config=all

   - try 4 graphics card ports for monitor data (default: 3)
          hwprobe=bios.ddc.ports=4 hwinfo --monitor

   - monitor detection runs the Video BIOS to get the monitor data; dump a complete BIOS code execution trace to the log
          hwprobe=bios.ddc.ports=1,x86emu=trace:dump:trace.only=0:dump.only=0 hwinfo --monitor --log=foo

FILES

   /var/lib/hardware/hd.ids
          External hardware data base (in readable text form). Try the --dump-db option to see the format.

   /var/lib/hardware/udi
          Directory where persistent config data are stored (see --save-config option).

BUGS

   Not all hardware can be detected.