lm_sensors的軟件可以幫助我們來監(jiān)控主板，CPU的工作電壓，風(fēng)扇轉(zhuǎn)速、溫度等數(shù)據(jù)。這些數(shù)據(jù)我們通常在主板的 BIOS也可以看到。當(dāng)我們可以在機(jī)器運(yùn)行的時候通過lm_sensors隨時來監(jiān)測著CPU的溫度變化，可以預(yù)防呵保護(hù)因?yàn)镃PU過熱而會燒掉。

　　1. 安裝lm_sensors

　　現(xiàn)在基本上每個Linux都已經(jīng)有l(wèi)m_sensors包了，我們主要安裝了就可以了?；蛘呶覀円部梢酝ㄟ^源文件來自己編譯。

　　1)在FC，RH， CENTOS下，用rpm：

　　[root@securitycn ~]# rpm -ivh lm_sensors-2.10.0-3.1.i386.rpm

　　3)編譯源文件安裝

　　我們可以通過:這里下載源文件

　　這里我們要注意的問題是要先安裝libsysfs庫，是Sysfsutils，Sysfsutils-devel軟件

　　tar xzvf lm-sensors-xxx.tar.gz

　　make user

　　make user_install testing

　　下面我們就用一些簡單的命令來利用lm_sensors來得到CPU的數(shù)據(jù)。我們要用root的身份來：

　　sensors-detect，然后它會自動搜索主板上的chipset和相應(yīng)的driver，我們?nèi)看餣ES就可以了

　　[root@securitycn ~]# sensors-detect

　　# sensors-detect revision 1.413 (2006/01/19 20:28:00)

　　This program will help you determine which I2C/SMBus modules you need to

　　load to use lm_sensors most effectively. You need to have i2c and

　　lm_sensors installed before running this program.

　　Also， you need to be `root'， or at least have access to the /dev/i2c-*

　　files， for most things.

　　If you have patched your kernel and have some drivers built in， you can

　　safely answer NO if asked to load some modules. In this case， things may

　　seem a bit confusing， but they will still work.

　　It is generally safe and recommended to accept the default answers to all

　　questions， unless you know what you're doing.

　　We can start with probing for (PCI) I2C or SMBus adapters.

　　You do not need any special privileges for this.

　　Do you want to probe now? (YES/no):

　　全部默認(rèn)YES即可。

　　然后我們啟動lm_sensors ：

　　/etc/init.d/lm_sensors start

　　Starting lm_sensors: [ OK ]

　　我們可以通過lsmod來確定我們需要的driver已經(jīng)加載了沒有

　　lsmod | grep i2c

　　i2c_isa 9153 2 w83627hf，w83781d

　　i2c_i801 11341 0

　　i2c_dev 12613 0

　　i2c_ec 9025 1 sbs

　　i2c_core 23745 6 w83627hf，w83781d，i2c_isa，i2c_i801，i2c_dev，i2c_ec

　　然后我們用sensors的命令就可以了：

　　[root@securitycn ~]# sensors

　　w83627hf-isa-0290

　　Adapter: ISA adapter共2頁。

　　VCore 1: +3.33 V (min = +0.00 V， max = +0.00 V) ALARM

　　VCore 2: +3.36 V (min = +0.00 V， max = +0.00 V) ALARM

　　+3.3V: +0.93 V (min = +3.14 V， max = +3.46 V) ALARM

　　+5V: +5.11 V (min = +4.73 V， max = +5.24 V)

　　+12V: +4.56 V (min = +10.82 V， max = +13.19 V) ALARM

　　-12V: -7.10 V (min = -13.18 V， max = -10.88 V) ALARM

　　-5V: -1.93 V (min = -5.25 V， max = -4.75 V) ALARM

　　V5SB: +5.51 V (min = +4.73 V， max = +5.24 V) ALARM

　　VBat: +0.02 V (min = +2.40 V， max = +3.60 V) ALARM

　　fan1: 0 RPM (min = 2732 RPM， div = 2) ALARM

　　fan2: 0 RPM (min = 0 RPM， div = 2)

　　fan3: 0 RPM (min = 0 RPM， div = 2)

　　temp1: +38