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linux下查看硬件信息的指令dmidecode

2015年5月6日

linux下查看硬件信息的指令dmidecode

http://bbs.chinaunix.net/thread-3604316-1-1.html

 

linux下查看硬件信息的指令,比如top,free等,还可以通过内核文件来看,比如/proc/cpuinfo,/proc/meminfo等,还有一个指令给大家介绍怎么查看硬件信息–dmidecode, 希望对大家有点用处,认为我说的比较肤浅的,也不要拍砖,目的在于大家相互交流嘛。
dmidecode是读取DMI的信息显示给大家的。
[[email protected] proc]# dmidecode –help
Usage: dmidecode [OPTIONS]
Options are:
-d, –dev-mem FILE     Read memory from device FILE (default: /dev/mem)
-h, –help             Display this help text and exit
-q, –quiet            Less verbose output
-s, –string KEYWORD   Only display the value of the given DMI string
-t, –type TYPE        Only display the entries of given type
-u, –dump             Do not decode the entries
-V, –version          Display the version and exit
以上是它的帮助信息,最有用的当然是参数-t了,它后面可跟的参数有:
0 BIOS
1 System
2 Base Board
3 Chassis
4 Processor
5 Memory Controller
6 Memory Module
7 Cache
8 Port Connector
9 System Slots
10 On Board Devices
11 OEM Strings
12 System Configuration Options
13 BIOS Language
14 Group Associations
15 System Event Log
16 Physical Memory Array
17 Memory Device
18 32-bit Memory Error
19 Memory Array Mapped Address
20 Memory Device Mapped Address
21 Built-in Pointing Device
22 Portable Battery
23 System Reset
24 Hardware Security
25 System Power Controls
26 Voltage Probe
27 Cooling Device
28 Temperature Probe
29 Electrical Current Probe
30 Out-of-band Remote Access
31 Boot Integrity Services
32 System Boot
33 64-bit Memory Error
34 Management Device
35 Management Device Component
36 Management Device Threshold Data
37 Memory Channel
38 IPMI Device
39 Power Supply
类型归纳一下如下:
bios 0, 13
system 1, 12, 15, 23, 32
baseboard 2, 10
chassis 3
processor 4
memory 5, 6, 16, 17
cache 7
connector 8
slot 9

比如查看CPU信息:
dmidecode -t 4     或者  dmidecode -t porcessor
两者的功能是一样的,查看内存 dmidecode -t 5 或 dmidecode -t memory
最常用的可能就是这两个指令了,尤其是查看内存,dmidecode -t memory会显示哪个插槽插了内存,容量多大的以及频率等信息。

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