You can get all the info that you need about you system hardware in Linux whether it's about the physical hardware itself or if it's kernel information and representation about said hardware.

You can view detailed information about your system hardware using general tools such as dmidecode or using specialized tools such as lscpu to get CPU-specific information or lsmem for memory. There are also subsystems such as procfs and sysfs that you can browse through to get the information that you need.

These tools are command-line based and is installed by default in most Linux distributions. You can use specific options of these tools to get the exact information that you need or pipe the output to grep to filter out the output.

Steps to get hardware information in Linux:

  1. Launch terminal.
  2. List installed hardware using lshw.
    $ sudo lshw
    [sudo] password for user: 
    host                        
        description: Computer
        product: VMware Virtual Platform
        vendor: VMware, Inc.
        version: None
        serial: VMware-56 4d 6d 49 cc cb 86 de-d4 ca fa ad 4b cf 54 30
        width: 64 bits
        capabilities: smbios-2.7 dmi-2.7 smp vsyscall32
        configuration: administrator_password=enabled boot=normal frontpanel_password=unknown keyboard_password=unknown power-on_password=disabled uuid=564D6D49-CCCB-86DE-D4CA-FAAD4BCF5430
      *-core
           description: Motherboard
           product: 440BX Desktop Reference Platform
           vendor: Intel Corporation
           physical id: 0
           version: None
           serial: None
         *-firmware
              description: BIOS
              vendor: Phoenix Technologies LTD
              physical id: 0
              version: 6.00
              date: 07/22/2020
              size: 86KiB
              capabilities: isa pci pcmcia pnp apm upgrade shadowing escd cdboot bootselect edd int5printscreen int9keyboard int14serial int17printer int10video acpi smartbattery biosbootspecification netboot
         *-cpu:0
              description: CPU
              product: Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
              vendor: Intel Corp.
              physical id: 1
              bus info: cpu@0
              version: Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
              slot: CPU #000
              size: 2300MHz
              capacity: 4230MHz
              width: 64 bits
              capabilities: lm fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp x86-64 constant_tsc arch_perfmon nopl xtopology tsc_reliable nonstop_tsc cpuid pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch cpuid_fault invpcid_single ssbd ibrs ibpb stibp ibrs_enhanced fsgsbase tsc_adjust bmi1 avx2 smep bmi2 invpcid rdseed adx smap clflushopt xsaveopt xsavec xgetbv1 xsaves arat md_clear flush_l1d arch_capabilities
              configuration: cores=1 enabledcores=1
            *-cache:0
                 description: L1 cache
                 physical id: 0
                 slot: L1
                 size: 16KiB
                 capacity: 16KiB
                 capabilities: asynchronous internal write-back
                 configuration: level=1
            *-cache:1
                 description: L1 cache
                 physical id: 1
                 slot: L1
                 size: 16KiB
                 capacity: 16KiB
                 capabilities: asynchronous internal write-back
                 configuration: level=1
    ##### snipped

    More options for lshw:

    $ lshw --help
    Hardware Lister (lshw) - 
    usage: lshw [-format] [-options ...]
           lshw -version
    
    	-version        print program version ()
    
    format can be
    	-html           output hardware tree as HTML
    	-xml            output hardware tree as XML
    	-json           output hardware tree as a JSON object
    	-short          output hardware paths
    	-businfo        output bus information
    
    options can be
    	-class CLASS    only show a certain class of hardware
    	-C CLASS        same as '-class CLASS'
    	-c CLASS        same as '-class CLASS'
    	-disable TEST   disable a test (like pci, isapnp, cpuid, etc. )
    	-enable TEST    enable a test (like pci, isapnp, cpuid, etc. )
    	-quiet          don't display status
    	-sanitize       sanitize output (remove sensitive information like serial numbers, etc.)
    	-numeric        output numeric IDs (for PCI, USB, etc.)
    	-notime         exclude volatile attributes (timestamps) from output
  3. List installed PCI devices using lspci.
    $ lspci
    00:00.0 Host bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (rev 01)
    00:01.0 PCI bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX AGP bridge (rev 01)
    00:07.0 ISA bridge: Intel Corporation 82371AB/EB/MB PIIX4 ISA (rev 08)
    00:07.1 IDE interface: Intel Corporation 82371AB/EB/MB PIIX4 IDE (rev 01)
    00:07.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 08)
    00:07.7 System peripheral: VMware Virtual Machine Communication Interface (rev 10)
    00:0f.0 VGA compatible controller: VMware SVGA II Adapter
    00:10.0 SCSI storage controller: Broadcom / LSI 53c1030 PCI-X Fusion-MPT Dual Ultra320 SCSI (rev 01)
    00:11.0 PCI bridge: VMware PCI bridge (rev 02)
    00:15.0 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:15.1 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:15.2 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:15.3 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:15.4 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:15.5 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:15.6 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:15.7 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:16.0 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:16.1 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:16.2 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:16.3 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:16.4 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:16.5 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:16.6 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:16.7 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:17.0 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:17.1 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:17.2 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:17.3 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:17.4 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:17.5 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:17.6 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:17.7 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:18.0 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:18.1 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:18.2 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:18.3 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:18.4 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:18.5 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:18.6 PCI bridge: VMware PCI Express Root Port (rev 01)
    00:18.7 PCI bridge: VMware PCI Express Root Port (rev 01)
    02:00.0 USB controller: VMware USB1.1 UHCI Controller
    02:01.0 Ethernet controller: Intel Corporation 82545EM Gigabit Ethernet Controller (Copper) (rev 01)
    02:03.0 USB controller: VMware USB2 EHCI Controller
    02:05.0 SATA controller: VMware SATA AHCI controller

    More options for lspci:

    $ lspci help
    Usage: lspci [<switches>]
    
    Basic display modes:
    -mm		Produce machine-readable output (single -m for an obsolete format)
    -t		Show bus tree
    
    Display options:
    -v		Be verbose (-vv or -vvv for higher verbosity)
    -k		Show kernel drivers handling each device
    -x		Show hex-dump of the standard part of the config space
    -xxx		Show hex-dump of the whole config space (dangerous; root only)
    -xxxx		Show hex-dump of the 4096-byte extended config space (root only)
    -b		Bus-centric view (addresses and IRQ's as seen by the bus)
    -D		Always show domain numbers
    -P		Display bridge path in addition to bus and device number
    -PP		Display bus path in addition to bus and device number
    
    Resolving of device ID's to names:
    -n		Show numeric ID's
    -nn		Show both textual and numeric ID's (names & numbers)
    -q		Query the PCI ID database for unknown ID's via DNS
    -qq		As above, but re-query locally cached entries
    -Q		Query the PCI ID database for all ID's via DNS
    
    Selection of devices:
    -s [[[[<domain>]:]<bus>]:][<slot>][.[<func>]]	Show only devices in selected slots
    -d [<vendor>]:[<device>][:<class>]		Show only devices with specified ID's
    
    Other options:
    -i <file>	Use specified ID database instead of /usr/share/misc/pci.ids.gz
    -p <file>	Look up kernel modules in a given file instead of default modules.pcimap
    -M		Enable `bus mapping' mode (dangerous; root only)
    
    PCI access options:
    -A <method>	Use the specified PCI access method (see `-A help' for a list)
    -O <par>=<val>	Set PCI access parameter (see `-O help' for a list)
    -G		Enable PCI access debugging
    -H <mode>	Use direct hardware access (<mode> = 1 or 2)
    -F <file>	Read PCI configuration dump from a given file
  4. List installed USB devices using lsusb.
    $ lsusb
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 002 Device 004: ID 0e0f:0008 VMware, Inc. VMware Virtual USB Mouse
    Bus 002 Device 003: ID 0e0f:0002 VMware, Inc. Virtual USB Hub
    Bus 002 Device 002: ID 0e0f:0003 VMware, Inc. Virtual Mouse
    Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

    More options for lsusb:

    $ lsusb --help
    Usage: lsusb [options]...
    List USB devices
      -v, --verbose
          Increase verbosity (show descriptors)
      -s [[bus]:][devnum]
          Show only devices with specified device and/or
          bus numbers (in decimal)
      -d vendor:[product]
          Show only devices with the specified vendor and
          product ID numbers (in hexadecimal)
      -D device
          Selects which device lsusb will examine
      -t, --tree
          Dump the physical USB device hierarchy as a tree
      -V, --version
          Show version of program
      -h, --help
          Show usage and help
  5. View CPU architecture details using lscpu.
    $ lscpu
    Architecture:                    x86_64
    CPU op-mode(s):                  32-bit, 64-bit
    Byte Order:                      Little Endian
    Address sizes:                   45 bits physical, 48 bits virtual
    CPU(s):                          2
    On-line CPU(s) list:             0,1
    Thread(s) per core:              1
    Core(s) per socket:              1
    Socket(s):                       2
    NUMA node(s):                    1
    Vendor ID:                       GenuineIntel
    CPU family:                      6
    Model:                           158
    Model name:                      Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Stepping:                        13
    CPU MHz:                         2304.000
    BogoMIPS:                        4608.00
    Hypervisor vendor:               VMware
    Virtualization type:             full
    L1d cache:                       64 KiB
    L1i cache:                       64 KiB
    L2 cache:                        512 KiB
    L3 cache:                        32 MiB
    NUMA node0 CPU(s):               0,1
    Vulnerability Itlb multihit:     KVM: Mitigation: VMX unsupported
    Vulnerability L1tf:              Not affected
    Vulnerability Mds:               Not affected
    Vulnerability Meltdown:          Not affected
    Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled 
                                     via prctl and seccomp
    Vulnerability Spectre v1:        Mitigation; usercopy/swapgs barriers and __use
                                     r pointer sanitization
    Vulnerability Spectre v2:        Mitigation; Enhanced IBRS, IBPB conditional, R
                                     SB filling
    Vulnerability Srbds:             Mitigation; TSX disabled
    Vulnerability Tsx async abort:   Not affected
    Flags:                           fpu vme de pse tsc msr pae mce cx8 apic sep mt
                                     rr pge mca cmov pat pse36 clflush mmx fxsr sse
                                      sse2 ss syscall nx pdpe1gb rdtscp lm constant
                                     _tsc arch_perfmon nopl xtopology tsc_reliable 
                                     nonstop_tsc cpuid pni pclmulqdq ssse3 fma cx16
                                      pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_de
                                     adline_timer aes xsave avx f16c rdrand hypervi
                                     sor lahf_lm abm 3dnowprefetch cpuid_fault invp
                                     cid_single ssbd ibrs ibpb stibp ibrs_enhanced 
                                     fsgsbase tsc_adjust bmi1 avx2 smep bmi2 invpci
                                     d rdseed adx smap clflushopt xsaveopt xsavec x
                                     getbv1 xsaves arat md_clear flush_l1d arch_cap
                                     abilities

    More options for lscpu:

    $ lscpu --help
    
    Usage:
     lscpu [options]
    
    Display information about the CPU architecture.
    
    Options:
     -a, --all               print both online and offline CPUs (default for -e)
     -b, --online            print online CPUs only (default for -p)
     -B, --bytes             print sizes in bytes rather than in human readable format
     -C, --caches[=<list>]   info about caches in extended readable format
     -c, --offline           print offline CPUs only
     -J, --json              use JSON for default or extended format
     -e, --extended[=<list>] print out an extended readable format
     -p, --parse[=<list>]    print out a parsable format
     -s, --sysroot <dir>     use specified directory as system root
     -x, --hex               print hexadecimal masks rather than lists of CPUs
     -y, --physical          print physical instead of logical IDs
         --output-all        print all available columns for -e, -p or -C
    
     -h, --help              display this help
     -V, --version           display version
    
    Available output columns for -e or -p:
               CPU  logical CPU number
              CORE  logical core number
            SOCKET  logical socket number
              NODE  logical NUMA node number
              BOOK  logical book number
            DRAWER  logical drawer number
             CACHE  shows how caches are shared between CPUs
      POLARIZATION  CPU dispatching mode on virtual hardware
           ADDRESS  physical address of a CPU
        CONFIGURED  shows if the hypervisor has allocated the CPU
            ONLINE  shows if Linux currently makes use of the CPU
            MAXMHZ  shows the maximum MHz of the CPU
            MINMHZ  shows the minimum MHz of the CPU
    
    Available output columns for -C:
          ALL-SIZE  size of all system caches
             LEVEL  cache level
              NAME  cache name
          ONE-SIZE  size of one cache
              TYPE  cache type
              WAYS  ways of associativity
    
    For more details see lscpu(1).

  6. View memory information using lsmem.
    $ lsmem
    RANGE                                 SIZE  STATE REMOVABLE BLOCK
    0x0000000000000000-0x00000000bfffffff   3G online       yes  0-23
    0x0000000100000000-0x000000013fffffff   1G online       yes 32-39
    
    Memory block size:       128M
    Total online memory:       4G
    Total offline memory:      0B

    More options for lsmem:

    $ lsmem --help
    
    Usage:
     lsmem [options]
    
    List the ranges of available memory with their online status.
    
    Options:
     -J, --json           use JSON output format
     -P, --pairs          use key="value" output format
     -a, --all            list each individual memory block
     -b, --bytes          print SIZE in bytes rather than in human readable format
     -n, --noheadings     don't print headings
     -o, --output <list>  output columns
         --output-all     output all columns
     -r, --raw            use raw output format
     -S, --split <list>   split ranges by specified columns
     -s, --sysroot <dir>  use the specified directory as system root
         --summary[=when] print summary information (never,always or only)
    
     -h, --help           display this help
     -V, --version        display version
    
    Available output columns:
          RANGE  start and end address of the memory range
           SIZE  size of the memory range
          STATE  online status of the memory range
      REMOVABLE  memory is removable
          BLOCK  memory block number or blocks range
           NODE  numa node of memory
          ZONES  valid zones for the memory range
    
    For more details see lsmem(1).
  7. List installed block devices using lsblk.
    $ lsblk 
    NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
    loop0    7:0    0 135.8M  1 loop /snap/chromium/1461
    loop1    7:1    0 135.7M  1 loop /snap/chromium/1466
    loop2    7:2    0  55.4M  1 loop /snap/core18/1932
    loop3    7:3    0 162.9M  1 loop /snap/gnome-3-28-1804/145
    loop4    7:4    0    51M  1 loop /snap/snap-store/498
    loop5    7:5    0  31.1M  1 loop /snap/snapd/10707
    loop6    7:6    0  31.1M  1 loop /snap/snapd/10492
    loop7    7:7    0    51M  1 loop /snap/snap-store/518
    loop8    7:8    0 161.4M  1 loop /snap/gnome-3-28-1804/128
    loop9    7:9    0  55.4M  1 loop /snap/core18/1944
    loop10   7:10   0  62.1M  1 loop /snap/gtk-common-themes/1506
    loop11   7:11   0   219M  1 loop /snap/gnome-3-34-1804/66
    loop12   7:12   0 217.9M  1 loop /snap/gnome-3-34-1804/60
    loop13   7:13   0  64.8M  1 loop /snap/gtk-common-themes/1514
    sda      8:0    0    20G  0 disk 
    ├─sda1   8:1    0   512M  0 part /boot/efi
    ├─sda2   8:2    0     1K  0 part 
    └─sda5   8:5    0  19.5G  0 part /
    sr0     11:0    1  1024M  0 rom

    More options for lsblk:

    $ lsblk --help
    
    Usage:
     lsblk [options] [<device> ...]
    
    List information about block devices.
    
    Options:
     -D, --discard        print discard capabilities
     -E, --dedup <column> de-duplicate output by <column>
     -I, --include <list> show only devices with specified major numbers
     -J, --json           use JSON output format
     -O, --output-all     output all columns
     -P, --pairs          use key="value" output format
     -S, --scsi           output info about SCSI devices
     -T, --tree[=<column>] use tree format output
     -a, --all            print all devices
     -b, --bytes          print SIZE in bytes rather than in human readable format
     -d, --nodeps         don't print slaves or holders
     -e, --exclude <list> exclude devices by major number (default: RAM disks)
     -f, --fs             output info about filesystems
     -i, --ascii          use ascii characters only
     -l, --list           use list format output
     -M, --merge          group parents of sub-trees (usable for RAIDs, Multi-path)
     -m, --perms          output info about permissions
     -n, --noheadings     don't print headings
     -o, --output <list>  output columns
     -p, --paths          print complete device path
     -r, --raw            use raw output format
     -s, --inverse        inverse dependencies
     -t, --topology       output info about topology
     -z, --zoned          print zone model
     -x, --sort <column>  sort output by <column>
         --sysroot <dir>  use specified directory as system root
    
     -h, --help           display this help
     -V, --version        display version
    
    Available output columns:
            NAME  device name
           KNAME  internal kernel device name
            PATH  path to the device node
         MAJ:MIN  major:minor device number
         FSAVAIL  filesystem size available
          FSSIZE  filesystem size
          FSTYPE  filesystem type
          FSUSED  filesystem size used
          FSUSE%  filesystem use percentage
      MOUNTPOINT  where the device is mounted
           LABEL  filesystem LABEL
            UUID  filesystem UUID
          PTUUID  partition table identifier (usually UUID)
          PTTYPE  partition table type
        PARTTYPE  partition type UUID
       PARTLABEL  partition LABEL
        PARTUUID  partition UUID
       PARTFLAGS  partition flags
              RA  read-ahead of the device
              RO  read-only device
              RM  removable device
         HOTPLUG  removable or hotplug device (usb, pcmcia, ...)
           MODEL  device identifier
          SERIAL  disk serial number
            SIZE  size of the device
           STATE  state of the device
           OWNER  user name
           GROUP  group name
            MODE  device node permissions
       ALIGNMENT  alignment offset
          MIN-IO  minimum I/O size
          OPT-IO  optimal I/O size
         PHY-SEC  physical sector size
         LOG-SEC  logical sector size
            ROTA  rotational device
           SCHED  I/O scheduler name
         RQ-SIZE  request queue size
            TYPE  device type
        DISC-ALN  discard alignment offset
       DISC-GRAN  discard granularity
        DISC-MAX  discard max bytes
       DISC-ZERO  discard zeroes data
           WSAME  write same max bytes
             WWN  unique storage identifier
            RAND  adds randomness
          PKNAME  internal parent kernel device name
            HCTL  Host:Channel:Target:Lun for SCSI
            TRAN  device transport type
      SUBSYSTEMS  de-duplicated chain of subsystems
             REV  device revision
          VENDOR  device vendor
           ZONED  zone model
    
    For more details see lsblk(8).
  8. List available special or device files in /dev directory.
    $ ls /dev
    agpgart          loop12        snapshot  tty34  tty9       uhid
    autofs           loop13        snd       tty35  ttyprintk  uinput
    block            loop14        sr0       tty36  ttyS0      urandom
    bsg              loop2         stderr    tty37  ttyS1      userio
    btrfs-control    loop3         stdin     tty38  ttyS10     vcs
    bus              loop4         stdout    tty39  ttyS11     vcs1
    cdrom            loop5         tty       tty4   ttyS12     vcs2
    cdrw             loop6         tty0      tty40  ttyS13     vcs3
    char             loop7         tty1      tty41  ttyS14     vcs4
    console          loop8         tty10     tty42  ttyS15     vcs5
    core             loop9         tty11     tty43  ttyS16     vcs6
    cpu_dma_latency  loop-control  tty12     tty44  ttyS17     vcsa
    cuse             mapper        tty13     tty45  ttyS18     vcsa1
    disk             mcelog        tty14     tty46  ttyS19     vcsa2
    dma_heap         mem           tty15     tty47  ttyS2      vcsa3
    dri              mqueue        tty16     tty48  ttyS20     vcsa4
    dvd              net           tty17     tty49  ttyS21     vcsa5
    ecryptfs         null          tty18     tty5   ttyS22     vcsa6
    fb0              nvram         tty19     tty50  ttyS23     vcsu
    fd               port          tty2      tty51  ttyS24     vcsu1
    full             ppp           tty20     tty52  ttyS25     vcsu2
    fuse             psaux         tty21     tty53  ttyS26     vcsu3
    hidraw0          ptmx          tty22     tty54  ttyS27     vcsu4
    hpet             pts           tty23     tty55  ttyS28     vcsu5
    hugepages        random        tty24     tty56  ttyS29     vcsu6
    hwrng            rfkill        tty25     tty57  ttyS3      vfio
    initctl          rtc           tty26     tty58  ttyS30     vga_arbiter
    input            rtc0          tty27     tty59  ttyS31     vhci
    kmsg             sda           tty28     tty6   ttyS4      vhost-net
    lightnvm         sda1          tty29     tty60  ttyS5      vhost-vsock
    log              sda2          tty3      tty61  ttyS6      vmci
    loop0            sda5          tty30     tty62  ttyS7      vsock
    loop1            sg0           tty31     tty63  ttyS8      zero
    loop10           sg1           tty32     tty7   ttyS9      zfs
    loop11           shm           tty33     tty8   udmabuf
  9. View Desktop Management Interface (DMI) information using dmidecode.
    $ sudo dmidecode
    # dmidecode 3.2
    Getting SMBIOS data from sysfs.
    SMBIOS 2.7 present.
    620 structures occupying 29060 bytes.
    Table at 0x000E0010.
    
    Handle 0x0000, DMI type 0, 24 bytes
    BIOS Information
    	Vendor: Phoenix Technologies LTD
    	Version: 6.00
    	Release Date: 07/22/2020
    	Address: 0xEA480
    	Runtime Size: 88960 bytes
    	ROM Size: 64 kB
    	Characteristics:
    		ISA is supported
    		PCI is supported
    		PC Card (PCMCIA) is supported
    		PNP is supported
    		APM is supported
    		BIOS is upgradeable
    		BIOS shadowing is allowed
    		ESCD support is available
    		Boot from CD is supported
    		Selectable boot is supported
    		EDD is supported
    		Print screen service is supported (int 5h)
    		8042 keyboard services are supported (int 9h)
    		Serial services are supported (int 14h)
    		Printer services are supported (int 17h)
    		CGA/mono video services are supported (int 10h)
    		ACPI is supported
    		Smart battery is supported
    		BIOS boot specification is supported
    		Function key-initiated network boot is supported
    		Targeted content distribution is supported
    	BIOS Revision: 4.6
    	Firmware Revision: 0.0
    
    Handle 0x0001, DMI type 1, 27 bytes
    System Information
    	Manufacturer: VMware, Inc.
    	Product Name: VMware Virtual Platform
    	Version: None
    	Serial Number: VMware-56 4d 6d 49 cc cb 86 de-d4 ca fa ad 4b cf 54 30
    	UUID: 496d4d56-cbcc-de86-d4ca-faad4bcf5430
    	Wake-up Type: Power Switch
    	SKU Number: Not Specified
    	Family: Not Specified
    ##### snipped

    More options for dmidecode:

    $ dmidecode --help
    Usage: dmidecode [OPTIONS]
    Options are:
     -d, --dev-mem FILE     Read memory from device FILE (default: /dev/mem)
     -h, --help             Display this help text and exit
     -q, --quiet            Less verbose output
     -s, --string KEYWORD   Only display the value of the given DMI string
     -t, --type TYPE        Only display the entries of given type
     -H, --handle HANDLE    Only display the entry of given handle
     -u, --dump             Do not decode the entries
         --dump-bin FILE    Dump the DMI data to a binary file
         --from-dump FILE   Read the DMI data from a binary file
         --no-sysfs         Do not attempt to read DMI data from sysfs files
         --oem-string N     Only display the value of the given OEM string
     -V, --version          Display the version and exit
  10. View hardware devices and related kernel information in sysfs.
    $ cat /sys/class/power_supply/ACAD/type 
    Mains
  11. View hardware and system details in proc filesystem (procfs).
    $ cat /proc/meminfo
    MemTotal:        4000788 kB
    MemFree:         2435468 kB
    MemAvailable:    2901532 kB
    Buffers:           50048 kB
    Cached:           585872 kB
    SwapCached:            0 kB
    Active:           803460 kB
    Inactive:         345520 kB
    Active(anon):     514404 kB
    Inactive(anon):      768 kB
    Active(file):     289056 kB
    Inactive(file):   344752 kB
    Unevictable:          16 kB
    Mlocked:              16 kB
    SwapTotal:        945416 kB
    SwapFree:         945416 kB
    Dirty:               232 kB
    Writeback:             0 kB
    AnonPages:        513136 kB
    Mapped:           243012 kB
    Shmem:              2116 kB
    KReclaimable:      73988 kB
    Slab:             187708 kB
    SReclaimable:      73988 kB
    SUnreclaim:       113720 kB
    KernelStack:       10144 kB
    PageTables:        10984 kB
    NFS_Unstable:          0 kB
    Bounce:                0 kB
    WritebackTmp:          0 kB
    CommitLimit:     2945808 kB
    Committed_AS:    3216804 kB
    VmallocTotal:   34359738367 kB
    VmallocUsed:       24172 kB
    VmallocChunk:          0 kB
    Percpu:            94720 kB
    HardwareCorrupted:     0 kB
    AnonHugePages:         0 kB
    ShmemHugePages:        0 kB
    ShmemPmdMapped:        0 kB
    FileHugePages:         0 kB
    FilePmdMapped:         0 kB
    HugePages_Total:       0
    HugePages_Free:        0
    HugePages_Rsvd:        0
    HugePages_Surp:        0
    Hugepagesize:       2048 kB
    Hugetlb:               0 kB
    DirectMap4k:      276288 kB
    DirectMap2M:     2869248 kB
    DirectMap1G:     3145728 kB

  12. View kernel diagnostic message using dmesg to search for related hardware information.
    $ dmesg
    [    0.000000] Linux version 5.8.0-41-generic (buildd@lgw01-amd64-003) (gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0, GNU ld (GNU Binutils for Ubuntu) 2.34) #46~20.04.1-Ubuntu SMP Mon Jan 18 17:52:23 UTC 2021 (Ubuntu 5.8.0-41.46~20.04.1-generic 5.8.18)
    [    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-5.8.0-41-generic root=UUID=8e7d73f3-e847-46a2-abcd-f505ec2a73f7 ro quiet splash
    [    0.000000] KERNEL supported cpus:
    [    0.000000]   Intel GenuineIntel
    [    0.000000]   AMD AuthenticAMD
    [    0.000000]   Hygon HygonGenuine
    [    0.000000]   Centaur CentaurHauls
    [    0.000000]   zhaoxin   Shanghai  
    [    0.000000] Disabled fast string operations
    [    0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
    [    0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
    [    0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
    [    0.000000] x86/fpu: xstate_offset[2]:  576, xstate_sizes[2]:  256
    [    0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'compacted' format.
    [    0.000000] BIOS-provided physical RAM map:
    [    0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009e7ff] usable
    [    0.000000] BIOS-e820: [mem 0x000000000009e800-0x000000000009ffff] reserved
    [    0.000000] BIOS-e820: [mem 0x00000000000dc000-0x00000000000fffff] reserved
    [    0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfecffff] usable
    [    0.000000] BIOS-e820: [mem 0x00000000bfed0000-0x00000000bfefefff] ACPI data
    ##### snipped

    More options for dmesg:

    $ dmesg --help
    
    Usage:
     dmesg [options]
    
    Display or control the kernel ring buffer.
    
    Options:
     -C, --clear                 clear the kernel ring buffer
     -c, --read-clear            read and clear all messages
     -D, --console-off           disable printing messages to console
     -E, --console-on            enable printing messages to console
     -F, --file <file>           use the file instead of the kernel log buffer
     -f, --facility <list>       restrict output to defined facilities
     -H, --human                 human readable output
     -k, --kernel                display kernel messages
     -L, --color[=<when>]        colorize messages (auto, always or never)
                                   colors are enabled by default
     -l, --level <list>          restrict output to defined levels
     -n, --console-level <level> set level of messages printed to console
     -P, --nopager               do not pipe output into a pager
     -p, --force-prefix          force timestamp output on each line of multi-line messages
     -r, --raw                   print the raw message buffer
     -S, --syslog                force to use syslog(2) rather than /dev/kmsg
     -s, --buffer-size <size>    buffer size to query the kernel ring buffer
     -u, --userspace             display userspace messages
     -w, --follow                wait for new messages
     -x, --decode                decode facility and level to readable string
     -d, --show-delta            show time delta between printed messages
     -e, --reltime               show local time and time delta in readable format
     -T, --ctime                 show human-readable timestamp (may be inaccurate!)
     -t, --notime                don't show any timestamp with messages
         --time-format <format>  show timestamp using the given format:
                                   [delta|reltime|ctime|notime|iso]
    Suspending/resume will make ctime and iso timestamps inaccurate.
    
     -h, --help                  display this help
     -V, --version               display version
    
    Supported log facilities:
        kern - kernel messages
        user - random user-level messages
        mail - mail system
      daemon - system daemons
        auth - security/authorization messages
      syslog - messages generated internally by syslogd
         lpr - line printer subsystem
        news - network news subsystem
    
    Supported log levels (priorities):
       emerg - system is unusable
       alert - action must be taken immediately
        crit - critical conditions
         err - error conditions
        warn - warning conditions
      notice - normal but significant condition
        info - informational
       debug - debug-level messages
    
    For more details see dmesg(1).
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