dmidecode command in Linux with examples.

Hi Friends! Today we will learn about dmidecode command in Linux with examples, this command collects the data from the system and represents it in the human-readable format and also known as Desktop Management Interface table decoder.

Also, we can get the information about our system hardware components as well as the other useful information like a Serial Number, BIOS Version, Manufacturer, etc.

So, let’s start with the first “dmidecode command in Linux“.

# dmidecode 
Output:
# dmidecode 3.1
Getting SMBIOS data from sysfs.
SMBIOS 3.0.0 present.
Table at 0x7E761000.

Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
	Vendor: LENOVO
	Version: 6UCN56WW(V4.11)
	Release Date: 06/26/2019
	Address: 0xE0000
	Runtime Size: 128 kB
	ROM Size: 6144 kB
	Characteristics:
		PCI is supported
		BIOS is upgradeable
		BIOS shadowing is allowed
		Boot from CD is supported
		Selectable boot is supported
		EDD is supported

I have highlighted the four part in above output in RED colour.

1. Handle 0x0000: This is a unique identifier
2. DMI type 0: It tells about the different elements of a system, in the above example the type is 0 means it will show the information about BIOS
3. 24 bytes: This is the size of a record and the 4 bytes are reserved, 2 bytes for a handle, 1 byte for a type, and 1 byte for the size and rest size are by the record data.
4. BIOS Information: This is known as Decoded values, this contains valuable information about the element in our system.

So when we use the dmidecode command it shows all the output which we have seen in the tables.

-t option to show the types of elements that are present in the system.

This option has some keywords like bios, system, processor, memory, and many more like this.

Command:

As you can see that we have type as a memory and it is showing the detail information about the memory.

You can also see the red highlighted part in the image output, so now instead of memory we will put DMI TYPE as 16

For the type also you can refer to the Dropdown list “Let’s have a look at the types of DMI.“

We can use these above types to know the information for a particular component

Command: For Processor

Command: To see more than one types

-s option will show the output by the identified String.

Serial Number of the System: 
# dmidecode -s system-serial-number

For CPU Detail: 
# dmidecode -s processor-version

To Find CPU Family: 
# dmidecode -s processor-family

Baseboard Serial Number: 
# dmidecode -s baseboard-serial-number

To Find System you are Using 
# dmidecode -s system-version

How to know the manufacturer of your System  
# dmidecode -s system-manufacturer

How to check uuid of the system

Command:
# dmidecode -s system-uuid

How to check Serial Number of the system

Command:
# dmidecode -s system-serial-number

How to check Processor Family of the system

Command:
# dmidecode -s processor-family

How to check Processor Version of the system

Command:
# dmidecode -s processor-version

How to check BIOS Information of the system

Command:
# dmidecode -t BIOS

How to check the Detail about System

Command:
# dmidecode -t system

How to check the Detail about the CPU 

Command:
# dmidecode -t processor

How to check the Detail about the Memory 

Command:
# dmidecode -t memory

[wp_quiz id=”1652″]

dmidecode command, dmidecode serial number, dmidecode system-uuid, dmidecode Linux, dmidecode ram info, dmidecode network card,

Link for the Source Code for dmidecode command in Linux.

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