In dmidecode types

0   BIOS Information
1   System Information
2   Baseboard (or Module) Information

What is the second entry? For exmaple, First is for bios, second for Motherboard. What does System here mean? CPU?

The man page says:

dmidecode is a tool for dumping a computer's DMI (some say SMBIOS) table contents in a human-readable format. This table contains a description of the system's hardware components, as well as other useful pieces of information such as serial numbers and BIOS revision. Thanks to this table, you can retrieve this information without having to probe for the actual hardware. While this is a good point in terms of report speed and safeness, this also makes the presented information possibly unreliable.

dmidecode -t system' didn't help either:

[root@localhost ~]# dmidecode -t system

\# dmidecode 2.12
SMBIOS 2.4 present.

Handle 0x0001, DMI type 1, 27 bytes
System Information
    Product Name:                                  
    Serial Number:                                  
    UUID: 89CFC20E-41D1-11DF-8DA9-001CC0C1735C
    Wake-up Type: Power Switch
    SKU Number: Not Specified
    Family: Not Specified

Handle 0x0028, DMI type 12, 5 bytes
System Configuration Options
    Option 1: To Be Filled By O.E.M.

Handle 0x0030, DMI type 32, 20 bytes
System Boot Information
    Status: No errors detected
  • It's your machine (your computer if you want...)... the overall system information (see detailed DMTF spec, page 36: System Information (Type 1)) – don_crissti May 11 '15 at 12:00
  • Thanks for the reference. Probably the best place to look it up! – Lavya May 11 '15 at 12:12

system refers to the entire box.

If you buy a pre-assembled computer with a specific model name, the vendor would put that information into the system block. If you buy components and assemble them yourself, that information remains empty.

  • Thanks! Should I assume that the System section is some BIOS (mine is Gigabyte Dual Bios version F15), also refers to the same? It seems like this might not necessarily be the case (at least on my Computer), as my "system" is perhaps an assembled one but the System model name says B75M-D3H which is a motherboard model number. – Lavya May 11 '15 at 15:13
  • 1
    Quite often, manufacturers are lazy and neglect to update the information. Depending on the motherboard vendor, these fields come empty, as copies of the motherboard info or with nonsense. – Simon Richter May 11 '15 at 15:28

system is your machine, You have samething in some command as system class Check it:

hwinfo --sys |less
  • What do you mean by machine? what is system class? I have a fresh fedora 20 installation, and it doesn't have hwinfo command on it. – Lavya May 11 '15 at 11:42
  • yum install hwinfo – PersianGulf May 11 '15 at 11:43
  • I still don't understand what system or machine refers to here. Is it the CPU, motherboard or something else? – Lavya May 11 '15 at 11:59

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