linux command – lshw (list hardware)

透過 #lshw 的功能可以檢視系統的硬體設施. 包括記憶體組態 (memory configuration),韌體版本 (firmware version),主機板組態 (mainboard configuration),處理器版本以及速度 (CPU version and speed),快取組態 (cache configuration),匯流排速度 (bus speed), 等…..

測試環境為 CentOS 7 (適用於 RHEL)

[root@benjr ~]# yum whatprovides lshw
[root@benjr ~]# yum install lshw

不過單使用 lshw 的資訊會太多而且要等一陣子才會有完整資料出現.

[root@benjr ~]# lshw

顯示在螢幕時會太快速,我們這時候可以導到文字檔稍後來看.

[root@benjr ~]# lshw > hw.txt
[root@benjr ~]# cat hw.txt |more

當然我們也可以一項項的來看,只要使用參數 -c [device] 即可.

[root@benjr ~]# lshw -c video

  *-display
       description: VGA compatible controller
       product: SVGA II Adapter
       vendor: VMware
       physical id: f
       bus info: pci@0000:00:0f.0
       version: 00
       width: 32 bits
       clock: 33MHz
       capabilities: vga_controller bus_master cap_list rom
       configuration: driver=vmwgfx latency=64
       resources: irq:16 ioport:10d0(size=16) memory:d8000000-dbffffff memory:d0800000-d0ffffff memory:c0000000-c0007fff

至於哪些裝置可以看可以先用 #lshw -short , #lshw -businfo 來查詢.

[root@benjr ~]# lshw -short
H/W path        Device      Class      Description
==================================================
                            system     Server()
/0                          bus        Server
/0/0                        memory     64KiB BIOS
/0/4                        processor  Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz
/0/100                      bridge     5500 I/O Hub to ESI Port
/0/100/1                    bridge     5520/5500/X58 I/O Hub PCI Express Root Port 1
/0/100/1/0      eth0        network    82575EB Gigabit Network Connection
/0/100/13                   generic    7500/5520/5500/X58 I/O Hub I/OxAPIC Interrupt Controller
/0/100/1e/3                 display    MGA G200eW WPCM450
/0/100/1f.2                 storage    82801JI (ICH10 Family) SATA AHCI Controller

大概有 bus , memory , processor , bridge , network , generic , display , storage 可以查詢,#lshw -short 與 #lshw -businfo 可以得到差不多的結果.

[root@benjr ~]# lshw -businfo