Retrieving Hardware Information on linux

Retrieving Hardware Information
If you need information on system's hardware like vendor, manufacturer, product, S/N, etc. you can use:

dmidecode
lshw
hwbrowser (graphical)
sysreport - Will collect all hardware information

The dmidecode command reads the information from the system BIOS, see also http://www.nongnu.org/dmidecode/.

There are a few other commands you might want to check out which list installed hardware components etc.:

lsdev
lshal
lspci
lsusb
lsscsi

Starting with the 2.6 kernel you can now get lots of information from /sys. For example, to get information on an Emulex HBA:

# ls /sys/class/scsi_host/host1/

board_mode lpfc_cr_delay lpfc_poll option_rom_version
board_online lpfc_drvr_version lpfc_poll_tmo portnum
cmd_per_lun lpfc_fcp_class lpfc_scan_down proc_name
ctlreg lpfc_fdmi_on lpfc_topology programtype
device lpfc_hba_queue_depth lpfc_use_adisc scan
fwrev lpfc_link_speed management_version serialnum
hdw lpfc_log_verbose mbox sg_tablesize
host_busy lpfc_lun_queue_depth modeldesc state
info lpfc_max_luns modelname uevent
lpfc_ack0 lpfc_multi_ring_support nport_evt_cnt unchecked_isa_dma
lpfc_cr_count lpfc_nodev_tmo num_discovered_ports unique_id
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