Questions tagged [dmidecode]

Dmidecode reports information about your system's hardware as described in your system BIOS according to the SMBIOS/DMI standard (see a sample output). This information typically includes system manufacturer, model name, serial number, BIOS version, asset tag as well as a lot of other details of varying level of interest and reliability depending on the manufacturer.

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Xen Server: Free memory != dmidecode -t17 output

Overview I'm running a Xen server on Debian buster. Latest kernel, latest BIOS version, legacy boot. Booting into Xen server only shows 8 GB of RAM free while recognizing 16 GB of RAM connected. ...
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How to reliably tell from Linux whether the CPU supports Hyperthreading, even if Hyperthreading is disabled?

The following is what I am doing to tell whether a processor does support HT or not, regardless of whether it is enabled or disabled: # dmidecode -t processor | grep "Hardware Thread" | wc -l If ...
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dmidecode output : conflict with published info on this device

I'm running Ubuntu 19.10 with kernel 5.3.0-29 on a Asus N501VW. The dmidecode for memory says this : Handle 0x0017, DMI type 16, 23 bytes Physical Memory Array Location: System Board ...
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Installing RAM: `dmidecode` shows both DIMM and SODIMM slots on the same machine

I want to add RAM to my laptop. If I run dmidecode --type 17 (as described in Linux Check Ram Speed and Type Commands). I get the following: [jeff@jbb-dell:~]$ sudo dmidecode --type 17 [sudo] ...
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Understanding vMotion from linux machine

is it possible to understand if vMotion is configured from the Linux OS itself? we ask this because we suspect that chrony service failed on vMotion https://access.redhat.com/solutions/4172631 ...
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Memory information

I have a server with centos7 , installed with 8 memory modules. I want to know what specific memory is installed on DIMM_A4 for example. With dmidecode or lshw I get the information on all the ...
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DMI table unreliable?

From the dmidecode man page : the presented information [is] possibly unreliable. They also add: More often than not, information contained in the DMI tables is inaccurate, incomplete or ...
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How linux put SMBIOS information to /dev/mem?

I checked the dmidecode source code. I saw this: int fd=open("/dev/mem", O_RDONLY); long fp=0xE0000L; It looks like Linux already copy SMBIOS information to memory?
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Filter dmidecode memory controller for supported speeds

as a newbie to linux kernel and all the commands, I am reaching out to you guys, hoping you can help me solve my issue. When running the next command sudo dmidecode -t 5 I get the following output: ...
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Oracle Linux 6 Looking for cmd or way to correlate BUS:Device.Function to physical slot

On Oracle Linux 7 [root@host ~]# uname -a Linux host 4.1.12-61.1.18.el7uek.x86_64 #2 SMP Fri Nov 4 15:48:30 PDT 2016 x86_64 x86_64 x86_64 GNU/Linux I can use [root@host ~]# dmidecode -V 3.0 [root@...
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dmidecode reveals something with Internal Reference Designator: NUDE

Internal Reference Designator: NUDE. Anyone know what this is? I googled and came up empty handed. I came across this when troubleshooting an issue with my USB ports. Motherboard is a three month ...
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Reading system information (/sys/class/dmi/id) without sudo

I am trying to get a unique system identifier. During research I stumbled on the system serial number which is exactly what I need (also present on the computer case). The serial number is written in ...
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How to redirect an error message to /dev/null?

sudo dmidecode | grep State 2> /dev/null Boot-up State: Safe Power Supply State: Safe Thermal State: Safe Invalid entry length (16). Fixed up to 11 I don't want the Invalid entry error in ...
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677 views

how to know if disks are from Jbod or integral as part of the HW machine

In some cases when we are not near the HW Linux machine, we are only able to see disks as the following: /dev/sdd 20511312 199536 20295392 1% /grd/sdd /dev/sdb ...
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What does “OEM strings” mean in dmidecode output?

When I run the command sudo dmidecode, OEM Strings entries change everyday. Yesterday, they were like the following: OEM Strings String 1: 2WYGio4ByI3fS String 2: Mqd4eRO2YezsP String 3: ...
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Crond permissions

I have a problem regarding permissions in a CentOS server. I created a NetCore application that reads some values from dmidecode. When I deployed the application in my CentOS server, I runned the ...
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Detect whether a Linux execution host is cloud based or not

Presently I'm checking by running dmidecode -s bios-version and grepping against major cloud vendors. Ex: # From an amazon ec2 VM $ sudo dmidecode -s bios-version 4.2.amazon Is there a generic and ...
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Can i trust /proc/cpuinfo in a virtual environment

I'm evaluating a private cloud solution built on kvm and so far I'm not getting the speed of the system that I need for my purposes. According to the vendor the underlying machines should be equipped ...
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943 views

dmidecode differs from lspci [closed]

First, regular lscpi lspci | grep Non-Volatile 03:00.0 Non-Volatile memory controller ... Which is interpreted as (Domain 0), bus 03, device 00, function 0. The relevant section of dmidecode: ...
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Is it possible to change the serial number of a VM in VMware Fusion?

I need to change the system Serial Number it's shown in the output of dmidecode -t system Please note that I'm running RedHat in a virtual machine in VMware Fusion Is it possible to do it?
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752 views

What does a “Synchronous” type detail mean in dmidecode?

I'm curious if my 2 DIMMs are running dual-channel or not and use: dmidecode -t 17 ... Type Detail: Synchronous ... What does a "Synchronous" type detail mean? Dual-channel?
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Reconstructing dmidecode binary dump from /sys/firmware/dmi/tables

Background dmidecode utility is able to create a raw binary dump using --dump-bin option: root@here:~$ dmidecode --dump-bin foo.dump which can be re-used on another machine, producing effect as if ...
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Does my system use all available RAM?

I installed 16GB of RAM on a motherboard that shouldn't take it. Should I buy a better motherboard or change anything at all? It seems to be working fine. Memory: Crucial Ballistix Sport "(8GBx2) ...
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Get the same UUID on different Linux distributions

# dmidecode --string system-uuid I'm using the code above get the UUID on each host in my environment. As far as I understand the UUID should not change between different Linux distributions on the ...
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Easy way to compare BIOS information between two machines?

I have two machines - machineA and machineB running Ubuntu 12.04 Is there any easy way I can compare BIOS settings between those two machine and see the difference instead of doing it manually using ...
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dmidecode - what is the “system”?

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 ...
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646 views

How to get all CPU cache information without SU access

I am trying to find out the cache mapping scheme for all the levels of class of a linux server, however I do not have root access. I would just use DMIdecode for this but you need root access. Is ...
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564 views

What are the two sections of this dmidecode output?

I ran dmidecode on my system to verify certain processor information. However, I am not sure what the two sections of the output indicate. $ sudo dmidecode -t processor # dmidecode 2.11 SMBIOS 2.7 ...
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What does the `maximum error` field in `sudo dmidecode -t 22` mean

When I do sudo dmidecode -t 22 to get some information about my battery there is a field called maximum error For my new battery maximum error is 15 % (cheap replacement from a web store) for my old ...
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8k views

enable SMART for HP hard disk

I would like to use SMART to perform a health check of my hard disk. I have an HP server of 4 years ago I believe. Every time I try to use the following command smartctl -a /dev/sda I got an error ...
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242 views

External Cache not socketed

When I check my CPU Cache with command dmidecode, I get Cache configuration to be Not Socketed. What does that mean? prayag@prayag:~/hacker_/draobkcalb$ sudo dmidecode -t cache # dmidecode 2.11 ...
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How to get system configuration information without dmidecode

In order to collect some system configuration information, I have been using dmidecode and the related tool lshw to find the information. This works great on most machines, but I have recently got ...
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How can I find the hardware model in Linux?

I used a system information utility to take the model number of a system, and also of the motherboard. DMI System Manufacturer LENOVO DMI System Product 2306CTO DMI System Version ...