Find hardware information on linux using dmidecode

If you need to know what hardware your computer or server has without having physical access to the machine, you can look it up using a linux command called dmidecode.

A couple of weeks ago I had to find out the product and model of my HP server. I knew it was an HP proliant DL 360 but didn’t know if it was a G3, G4, G5 or G6. By using dmidecode we extract this information:

[root@mylinuxserver /]# dmidecode --type 1

# dmidecode 2.10
SMBIOS 2.3 present.

Handle 0x0100, DMI type 1, 25 bytes
System Information
Manufacturer: HP
Product Name: ProLiant DL360 G4p
Version: Not Specified
Serial Number: xxxxxxxx
UUID: xxxxxxxx
Wake-up Type: Power Switch

There are a lot of options you can use with dmidecode to extract all the information you want. Just take a look at the following list:

Type   Information
----------------------------------------
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

This will make your life as a Linux Engineer much easier!

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