hwinfo - probe for hardware


hwinfo [ OPTIONS ]


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.


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

 Show only a summary. Use this option in addition to a hardware probing option.
 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 data about devices with DEVNAME will be shown.
--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.
 Increase verbosity. Only together with --map.
--log FILE
 Write log info to FILE.
--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.
 Print libhd version.
--help Print usage.


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.


- 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


 External hardware data base (in readable text form). Try the --dump-db option to see the format.
 Directory where persistent config data are stored (see --save-config option).


Not all hardware can be detected.


More documentation in /usr/share/doc/packages/hwinfo. Source repository: git://

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