Linux command – ipmitool

關於 IPMI 的定義請參考 http://benjr.tw/11240

測試環境為 CentOS 7 x64

在使用 ipmitool 可能會遇到找不到裝置的狀況

[root@localhost ~]# ipmitool 
Could not open device at /dev/ipmi0 or /dev/ipmi/0 or [root@localhost ~]# systemctl status ipmi

先檢查一下 BMC 裝置是否存在,因為 BMC 非 PCI-E 裝置,所以只能透過 dmesg 來看.

[root@localhost ~]# lspci | grep ipmi

[root@localhost ~]# lspci | grep bmc

[root@localhost ~]# dmesg |grep -i ipmi
[   20.120464] ipmi message handler version 39.2
[   20.231682] IPMI System Interface driver.
[   20.231712] ipmi_si: probing via SMBIOS
[   20.231714] ipmi_si: SMBIOS: io 0xca8 regsize 1 spacing 1 irq 0
[   20.231715] ipmi_si: Adding SMBIOS-specified kcs state machine
[   20.231717] ipmi_si: probing via SPMI
[   20.231718] ipmi_si: SPMI: io 0xca8 regsize 1 spacing 1 irq 0
[   20.231719] ipmi_si: Adding SPMI-specified kcs state machine duplicate interface
[   20.231721] ipmi_si: Trying SMBIOS-specified kcs state machine at i/o address 0xca8, slave address 0x20, irq 0
[   20.452250] ipmi device interface
[   20.644368] ipmi_si ipmi_si.0: Found new BMC (man_id: 0x00016c, prod_id: 0x4147, dev_id: 0x20)
[   20.644385] ipmi_si ipmi_si.0: IPMI kcs interface initialized

ipmi 相關模組是否正確

[root@localhost ~]# lsmod |grep -i ipmi
ipmi_devintf           17572  0 
ipmi_si                53582  0 
ipmi_msghandler        46608  2 ipmi_devintf,ipmi_si

• ipmi_devintf
  Linux character device interface for the message handler.
• ipmi_si
  An IPMI system interface driver for the message handler. This module supports various IPMI system interfaces such as KCS, BT, SMIC, and even SMBus.
• ipmi_msghandler
  Incoming and outgoing message handler for IPMI interfaces.

相關套件是否已經安裝

[root@localhost ~]# yum install OpenIPMI ipmitool

ipmi 服務確認有 enable (開機要啟動) , start (立即啟動)

[root@localhost ~]# systemctl enable ipmi

[root@localhost ~]# systemctl start ipmi

[root@localhost ~]# systemctl status ipmi
● ipmi.service - IPMI Driver
   Loaded: loaded (/usr/lib/systemd/system/ipmi.service; enabled; vendor preset: enabled)
   Active: active (exited) since Wed 2017-04-19 14:34:36 CST; 38min ago
  Process: 1190 ExecStart=/usr/libexec/openipmi-helper start (code=exited, status=0/SUCCESS)
 Main PID: 1190 (code=exited, status=0/SUCCESS)
   CGroup: /system.slice/ipmi.service

沒有錯誤時 Loaded 為 loaded , Active 為 active .

這時候就可以試試看下面指令,來確認 BMC / IPMI 的狀態.

[root@localhost ~]# ipmitool mc info
Device ID                 : 32
Device Revision           : 3
Firmware Revision         : 1.04
IPMI Version              : 2.0
Manufacturer ID           : 364
Manufacturer Name         : Unknown (0x16C)
Product ID                : 16711 (0x4147)
Product Name              : Unknown (0x4147)
Device Available          : yes
Provides Device SDRs      : no
Additional Device Support :
    Sensor Device
    SEL Device
    FRU Inventory Device
    IPMB Event Receiver
    IPMB Event Generator
    Bridge
Aux Firmware Rev Info     : 
    0x01
    0x00
    0x00
    0x00