Ubuntu Manpage: hwinfo - probe for hardware

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

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.