시스템 정보 확인 - dmidecode

dmidecode는 시스템 정보를 수집 및 확인 시켜주는 툴이다.

 

참조 : http://www.nongnu.org/dmidecode/

 

사이트에 보면 아래 OS를 지원할 수 있다고 되어 있다.

 

• Linux i386, x86-64, ia64
• FreeBSD i386, amd64
• NetBSD i386, amd64
• OpenBSD i386, amd64
• BeOS i386
• Cygwin i386
• Solaris x86Haiku i586

 

dmidecode-2.12.tar.gz

 

소스 설치 할 때는 make, make install 만 하면 된다.

 

[root@boanhack ~]# dmidecode -h
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
 -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
 -V, --version          Display the version and exit

 

 

시스템 H/W 벤더 확인하기

 

[root@boanhack ~]# dmidecode -s system-product-name
IBM System x3650

 

시스템 프로세스 확인하기

-t 옵션은 Type 또는 Information 값을 넣어 주면 된다.

 

[root@gedunms ~]# dmidecode -t 4
# dmidecode 2.11
SMBIOS 2.4 present.

Handle 0x000D, DMI type 4, 35 bytes
Processor Information
        Socket Designation: CPU 1
        Type: Central Processor
        Family: Xeon
        Manufacturer: GenuineIntel
        ID: 76 06 00 00 01 03 00 00
        Signature: Type 0, Family 6, Model 7, Stepping 6
        Flags:
                FPU (Floating-point unit on-chip)
                CX8 (CMPXCHG8 instruction supported)
                APIC (On-chip APIC hardware supported)
        Version: Intel Xeon
        Voltage: 1.2 V
        External Clock: 266 MHz
        Max Speed: 3733 MHz
        Current Speed: 3000 MHz
        Status: Populated, Enabled
        Upgrade: ZIF Socket
        L1 Cache Handle: 0x0009
        L2 Cache Handle: 0x000A
        L3 Cache Handle: Not Provided
        Serial Number: Not Specified
        Asset Tag: Not Specified
        Part Number: Not Specified

Handle 0x000E, DMI type 4, 35 bytes
Processor Information
        Socket Designation: CPU 2
        Type: Central Processor
        Family: Xeon
        Manufacturer: GenuineIntel
        ID: 76 06 00 00 01 03 00 00
        Signature: Type 0, Family 6, Model 7, Stepping 6
        Flags:
                FPU (Floating-point unit on-chip)
                CX8 (CMPXCHG8 instruction supported)
                APIC (On-chip APIC hardware supported)
        Version: Intel Xeon
        Voltage: 1.2 V
        External Clock: 266 MHz
        Max Speed: 3733 MHz
        Current Speed: 3000 MHz
        Status: Populated, Enabled
        Upgrade: ZIF Socket
        L1 Cache Handle: 0x000B
        L2 Cache Handle: 0x000C
        L3 Cache Handle: Not Provided
        Serial Number: Not Specified
        Asset Tag: Not Specified
        Part Number: Not Specified

 

 

자세한 건 하단 Man 페이지 확인해 보자

 

 

 

[root@gedunms ~]# man dmidecode
DMIDECODE(8)                                                      DMIDECODE(8)

NAME
       dmidecode - DMI table decoder

SYNOPSIS
       dmidecode [OPTIONS]

DESCRIPTION
       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 pos-
       sibly unreliable.

       The  DMI table doesn’t only describe what the system is currently made of, it also can report the possible evolutions (such
       as the fastest supported CPU or the maximal amount of memory supported).

       SMBIOS stands for System Management BIOS, while DMI stands for Desktop Management Interface.  Both  standards  are  tightly
       related and developed by the DMTF (Desktop Management Task Force).

       As you run it, dmidecode will try to locate the DMI table. If it succeeds, it will then parse this table and display a list
       of records like this one:

       Handle 0x0002, DMI type 2, 8 bytes.  Base Board Information
               Manufacturer: Intel
               Product Name: C440GX+
               Version: 727281-001
               Serial Number: INCY92700942

       Each record has:

       · A handle. This is a unique identifier, which allows records to reference each other. For example, processor records  usu-
         ally reference cache memory records using their handles.

       · A type. The SMBIOS specification defines different types of elements a computer can be made of. In this example, the type
         is 2, which means that the record contains "Base Board Information".

       · A size. Each record has a 4-byte header (2 for the handle, 1 for the type, 1 for the size),  the  rest  is  used  by  the
         record data. This value doesn’t take text strings into account (these are placed at the end of the record), so the actual
         length of the record may be (and is often) greater than the displayed value.

       · Decoded values. The information presented of course depends on the type of record. Here, we learn about the board’s manu-
         facturer, model, version and serial number.

OPTIONS
       -d, --dev-mem FILE
              Read memory from device FILE (default: /dev/mem)

       -q, --quiet
              Be  less  verbose. Unknown, inactive and OEM-specific entries are not displayed. Meta-data and handle references are
              hidden.

       -s, --string KEYWORD
              Only display the value of the DMI string identified by KEYWORD.  KEYWORD must be a keyword from the following  list:
              bios-vendor,  bios-version,  bios-release-date,  system-manufacturer,  system-product-name,  system-version, system-
              serial-number, system-uuid, baseboard-manufacturer, baseboard-product-name, baseboard-version, baseboard-serial-num-
              ber, baseboard-asset-tag, chassis-manufacturer, chassis-type, chassis-version, chassis-serial-number, chassis-asset-
              tag, processor-family, processor-manufacturer, processor-version, processor-frequency.  Each keyword corresponds  to
              a  given  DMI  type and a given offset within this entry type.  Not all strings may be meaningful or even defined on
              all systems. Some keywords may return more than one result on some systems (e.g.  processor-version on a  multi-pro-
              cessor  system).   If  KEYWORD  is  not provided or not valid, a list of all valid keywords is printed and dmidecode
              exits with an error.  This option cannot be used more than once.

       -t, --type TYPE
              Only display the entries of type TYPE. TYPE can be either a DMI type number, or a comma-separated list of type  num-
              bers,  or  a keyword from the following list: bios, system, baseboard, chassis, processor, memory, cache, connector,
              slot. Refer to the DMI TYPES section below for details.  If this option is used more than once, the set of displayed
              entries  will  be  the union of all the given types.  If TYPE is not provided or not valid, a list of all valid key-
              words is printed and dmidecode exits with an error.

       -u, --dump
              Do not decode the entries, dump their contents as hexadecimal instead.  Note that this is still a  text  output,  no
              binary data will be thrown upon you. The strings attached to each entry are displayed as both hexadecimal and ASCII.
              This option is mainly useful for debugging.

           --dump-bin FILE
              Do not decode the entries, instead dump the DMI data to a file in binary form. The generated  file  is  suitable  to
              pass to --from-dump later.

           --from-dump FILE
              Read the DMI data from a binary file previously generated using --dump-bin.

       -h, --help
              Display usage information and exit

       -V, --version
              Display the version and exit

       Options --string, --type and --dump-bin determine the output format and are mutually exclusive.

DMI TYPES
       The SMBIOS specification defines the following DMI types:

       Type   Information
       ----------------------------------------
          0   BIOS
          1   System
          2   Base Board
          3   Chassis
          4   Processor
          5   Memory Controller
          6   Memory Module
          7   Cache
          8   Port Connector
          9   System Slots
         10   On Board Devices
         11   OEM Strings
         12   System Configuration Options
         13   BIOS Language
         14   Group Associations
         15   System Event Log
         16   Physical Memory Array
         17   Memory Device
         18   32-bit Memory Error
         19   Memory Array Mapped Address
         20   Memory Device Mapped Address
         21   Built-in Pointing Device
         22   Portable Battery
         23   System Reset
         24   Hardware Security
         25   System Power Controls
         26   Voltage Probe
         27   Cooling Device
         28   Temperature Probe
         29   Electrical Current Probe
         30   Out-of-band Remote Access
         31   Boot Integrity Services
         32   System Boot
         33   64-bit Memory Error
         34   Management Device
         35   Management Device Component
         36   Management Device Threshold Data
         37   Memory Channel
         38   IPMI Device
         39   Power Supply
         40   Additional Information
         41   Onboard Device

       Additionally,  type  126 is used for disabled entries and type 127 is an end-of-table marker. Types 128 to 255 are for OEM-
       specific data.  dmidecode will display these entries by default, but it can only decode them when  the  vendors  have  con-
       tributed documentation or code for them.

       Keywords can be used instead of type numbers with --type.  Each keyword is equivalent to a list of type numbers:

       Keyword     Types
       ------------------------------
       bios        0, 13
       system      1, 12, 15, 23, 32
       baseboard   2, 10, 41
       chassis     3
       processor   4
       memory      5, 6, 16, 17
       cache       7
       connector   8
       slot        9

       Keywords are matched case-insensitively. The following command lines are equivalent:

       · dmidecode --type 0 --type 13

       · dmidecode --type 0,13

       · dmidecode --type bios

       · dmidecode --type BIOS

BINARY DUMP FILE FORMAT
       The binary dump files generated by --dump-bin and read using --from-dump are formatted as follows:

       · The SMBIOS or DMI entry point is located at offset 0x00.  It is crafted to hard-code the table address at offset 0x20.

       · The DMI table is located at offset 0x20.

FILES
       /dev/mem

BUGS
       More often than not, information contained in the DMI tables is inaccurate, incomplete or simply wrong.

AUTHORS
       Alan Cox, Jean Delvare

SEE ALSO
       biosdecode(8), mem(4), ownership(8), vpddecode(8)