Dmidecode

Last updated
dmidecode
Original author(s) Alan Cox
Developer(s) Jean Delvare
Repository git.savannah.nongnu.org/cgit/dmidecode.git
Written inC
Website www.nongnu.org/dmidecode/   OOjs UI icon edit-ltr-progressive.svg

dmidecode is a free userspace command-line utility for Linux that can parse the SMBIOS data. [1] [2] The name dmidecode is derived from Desktop Management Interface, a related standard with which dmidecode originally interfaced. SMBIOS was originally named DMIBIOS. The Linux kernel and other modern operating systems such as the BSD family contain an SMBIOS decoder, allowing systems administrators to inspect system hardware configuration and to enable or disable certain workarounds for problems with specific systems, based on the provided SMBIOS information. Information provided by this utility typically includes the system manufacturer, model name, serial number, BIOS version and asset tag, as well other details of varying level of interest and reliability, depending on the system manufacturer. The information often includes usage status for the CPU sockets, expansion slots (including AGP, PCI and ISA) and memory module slots, and the list of I/O ports (including serial, parallel and USB). [3] [4] Decoded DMI tables for various computer models are collected in a public GitHub repository. [5]

For Dell systems there is a libsmbios utility. [6]

Related Research Articles

<span class="mw-page-title-main">BIOS</span> Firmware for hardware initialization and OS runtime services

In computing, BIOS is firmware used to provide runtime services for operating systems and programs and to perform hardware initialization during the booting process. The BIOS firmware comes pre-installed on an IBM PC or IBM PC compatible's system board and exists in some UEFI-based systems to maintain compatibility with operating systems that do not support UEFI native operation. The name originates from the Basic Input/Output System used in the CP/M operating system in 1975. The BIOS originally proprietary to the IBM PC has been reverse engineered by some companies looking to create compatible systems. The interface of that original system serves as a de facto standard.

<span class="mw-page-title-main">Device driver</span> Computer program that operates or controls a device that is attached to a computer

In computing, a device driver is a computer program that operates or controls a particular type of device that is attached to a computer or automaton. A driver provides a software interface to hardware devices, enabling operating systems and other computer programs to access hardware functions without needing to know precise details about the hardware being used.

<span class="mw-page-title-main">Industry Standard Architecture</span> 16-bit internal bus

Industry Standard Architecture (ISA) is the 16-bit internal bus of IBM PC/AT and similar computers based on the Intel 80286 and its immediate successors during the 1980s. The bus was (largely) backward compatible with the 8-bit bus of the 8088-based IBM PC, including the IBM PC/XT as well as IBM PC compatibles.

<span class="mw-page-title-main">Embedded system</span> Computer system with a dedicated function

An embedded system is a computer system—a combination of a computer processor, computer memory, and input/output peripheral devices—that has a dedicated function within a larger mechanical or electronic system. It is embedded as part of a complete device often including electrical or electronic hardware and mechanical parts. Because an embedded system typically controls physical operations of the machine that it is embedded within, it often has real-time computing constraints. Embedded systems control many devices in common use. In 2009, it was estimated that ninety-eight percent of all microprocessors manufactured were used in embedded systems.

<span class="mw-page-title-main">Parallel port</span> Computer interface

In computing, a parallel port is a type of interface found on early computers for connecting peripherals. The name refers to the way the data is sent; parallel ports send multiple bits of data at once, as opposed to serial communication, in which bits are sent one at a time. To do this, parallel ports require multiple data lines in their cables and port connectors and tend to be larger than contemporary serial ports, which only require one data line.

System software is software designed to provide a platform for other software. Examples of system software include operating systems (OS).

<span class="mw-page-title-main">Distributed Management Task Force</span> Organization

Distributed Management Task Force (DMTF) is a 501(c)(6) nonprofit industry standards organization that creates open manageability standards spanning diverse emerging and traditional IT infrastructures including cloud, virtualization, network, servers and storage. Member companies and alliance partners collaborate on standards to improve interoperable management of information technologies.

Memory-mapped I/O (MMIO) and port-mapped I/O (PMIO) are two complementary methods of performing input/output (I/O) between the central processing unit (CPU) and peripheral devices in a computer. An alternative approach is using dedicated I/O processors, commonly known as channels on mainframe computers, which execute their own instructions.

<span class="mw-page-title-main">UEFI</span> Operating system and firmware specification

In computing, Unified Extensible Firmware Interface is a specification that defines the architecture of the platform firmware used for booting the computer hardware and its interface for interaction with the operating system. Examples of firmware that implement the specification are AMI Aptio, Phoenix SecureCore, TianoCore EDK II, InsydeH2O. UEFI replaces the BIOS which was present in the boot ROM of all personal computers that are IBM PC compatible, although it can provide backwards compatibility with the BIOS using CSM booting. Intel developed the original Extensible Firmware Interface (EFI) specification. Some of the EFI's practices and data formats mirror those of Microsoft Windows. In 2005, UEFI deprecated EFI 1.10.

<span class="mw-page-title-main">American Megatrends</span> International hardware and software company

American Megatrends International, LLC, doing business as AMI, is an international hardware and software company, specializing in PC hardware and firmware. The company was founded in 1985 by Pat Sarma and Subramonian Shankar. It is headquartered in Building 800 at 3095 Satellite Boulevard in unincorporated Gwinnett County, Georgia, United States, near the city of Duluth, and in the Atlanta metropolitan area.

In computing, the System Management BIOS (SMBIOS) specification defines data structures that can be used to read management information produced by the BIOS of a computer. This eliminates the need for the operating system to probe hardware directly to discover what devices are present in the computer. The SMBIOS specification is produced by the Distributed Management Task Force (DMTF), a non-profit standards development organization. The DMTF estimates that two billion client and server systems implement SMBIOS.

<span class="mw-page-title-main">ACPI</span> Computer firmware interface standard

Advanced Configuration and Power Interface (ACPI) is an open standard that operating systems can use to discover and configure computer hardware components, to perform power management, auto configuration, and status monitoring. First released in December 1996, ACPI aims to replace Advanced Power Management (APM), the MultiProcessor Specification, and the Plug and Play BIOS (PnP) Specification. ACPI brings power management under the control of the operating system, as opposed to the previous BIOS-centric system that relied on platform-specific firmware to determine power management and configuration policies. The specification is central to the Operating System-directed configuration and Power Management (OSPM) system. ACPI defines hardware abstraction interfaces between the device's firmware, the computer hardware components, and the operating systems.

The Desktop Management Interface (DMI) generates a standard framework for managing and tracking components in a desktop, notebook or server computer, by abstracting these components from the software that manages them. The development of DMI, 2.0 version June 24, 1998, marked the first move by the Distributed Management Task Force (DMTF) into desktop-management standards. Before the introduction of DMI, no standardized source of information could provide details about components in a personal computer.

In computing, serial presence detect (SPD) is a standardized way to automatically access information about a memory module. Earlier 72-pin SIMMs included five pins that provided five bits of parallel presence detect (PPD) data, but the 168-pin DIMM standard changed to a serial presence detect to encode much more information.

<span class="mw-page-title-main">Dreambox</span>

Dreambox is a series of Linux-powered DVB satellite, terrestrial and cable digital television receivers, produced by German multimedia vendor Dream Multimedia.

<span class="mw-page-title-main">Trusted Platform Module</span> Standard for secure cryptoprocessors

Trusted Platform Module is an international standard for a secure cryptoprocessor, a dedicated microcontroller designed to secure hardware through integrated cryptographic keys. The term can also refer to a chip conforming to the standard.

The AMD 690 chipset series is an integrated graphics chipset family which was developed and manufactured by AMD subsidiary ATI for both AMD and Intel platforms focusing on both desktop and mobile computing markets. The corresponding chipset for the Intel platform has a marketing name of Radeon Xpress 1200 series.

Operating system Wi-Fi support is the support in the operating system for Wi-Fi and usually consists of two pieces: driver level support, and configuration and management support.

Video Acceleration API (VA-API) is an open source application programming interface that allows applications such as VLC media player or GStreamer to use hardware video acceleration capabilities, usually provided by the graphics processing unit (GPU). It is implemented by the free and open-source library libva, combined with a hardware-specific driver, usually provided together with the GPU driver.

<span class="mw-page-title-main">Intel Management Engine</span> Autonomous computer subsystem

The Intel Management Engine (ME), also known as the Intel Manageability Engine, is an autonomous subsystem that has been incorporated in virtually all of Intel's processor chipsets since 2008. It is located in the Platform Controller Hub of modern Intel motherboards.

References

  1. Dean, Adam K. (2018). Linux administration cookbook : insightful recipes to work with system administration tasks on Linux. Birmingham, UK. p. 41. ISBN   978-1-78934-028-0. OCLC   1088729704.{{cite book}}: CS1 maint: location missing publisher (link)
  2. Bresnahan, Christine (2019). CompTIA Linux+ study guide : exam XK0-004. Richard Blum (4th ed.). Indianopolis, Indiana. p. 636. ISBN   978-1-119-55605-3. OCLC   1105557135.{{cite book}}: CS1 maint: location missing publisher (link)
  3. "dmidecode". nongnu.org. Retrieved 2013-10-30.
  4. Joe Barr (2004-11-29). "dmidecode: What's it good for?". linux.com. Retrieved 2013-10-30.
  5. Linux Hardware Project (2019-12-24). "Large collection of decoded DMI tables for various computer models". linuxhw. Retrieved 2019-12-24.
  6. Dell (2021-01-19). "libsmbios provides a library to interface with the SMBIOS tables. It also provides extensions for proprietary methods of interfacing with Dell specific SMBIOS tables". Dell. Retrieved 2021-01-19.