Let's note W2 に Debian 4.0 Etch
http://d.hatena.ne.jp/sa-y/20070624 の続き．
dmidecode パッケージって何？
インストールされているけど何かよくわからないパッケージとして dmidecode を調べてみた．何で dmidecode かっていうと何よりまず読み方がわからなかったので…「でぃーまいどこーど」って何？っていう…
とりあえず何のコマンドが入ってるのか調べる．
% dpkg -L dmidecode | grep 'bin/' /usr/sbin/dmidecode /usr/sbin/biosdecode /usr/sbin/ownership /usr/sbin/vpddecode
コマンドは4つ．他のコマンドの名前から dmidecode は「でぃーえむあい でこーど」と読むのではないかという気がしてきた．
% man dmidecode
man を読むと dmidecode はコンピュータの DMI テーブルの内容を人間に読めるようなフォーマットで表示するツールだと書いてある．それで DMI ってのは Desktop Management Interface の略で，コンピュータにつながっているハードウェアやソフトウェアを統一的に管理するための標準インターフェースらしい．
あまり詳しく載ってないけど Wikipedia の説明．
dmidecode は DMI のコンポーネント(管理対象となるハードウェアやソフトウェア)とのインターフェース部分を使って PC のハードウェア情報を集めてくる，というツールの模様．
man を読むと同パッケージの他のコマンドも大体同じような機能のコマンドのようです．
- biosdecode - BIOS 情報を表示
- vpddecode - IBM のコンピュータの「vital product data」の情報を表示
- ownership - Compaq の「ownership tag」の情報を表示
ということで dmidecode パッケージはこんな感じのツールをまとめたものなのですね…
試しに Let's node W2 で dmidecode 実行してみると以下のようになりました．一部マスクしてあります．
# dmidecode 2.8 SMBIOS 2.3 present. 42 structures occupying 1589 bytes. Table at 0x000E7D50. Handle 0x0000, DMI type 0, 20 bytes BIOS Information Vendor: Phoenix Technologies K.K. Version: V5.00L11 Release Date: 09/21/2004 Address: 0xE2E80 Runtime Size: 119168 bytes ROM Size: 512 kB Characteristics: PCI is supported PC Card (PCMCIA) is supported PNP 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 3.5"/720 KB floppy services are supported (int 13h) Print screen service is supported (int 5h) 8042 keyboard services are supported (int 9h) ACPI is supported USB legacy is supported BIOS boot specification is supported Function key-initiated network boot is supported Handle 0x0001, DMI type 1, 25 bytes System Information Manufacturer: Matsushita Electric Industrial Co.,Ltd. Product Name: CF-W2EW1AXR Version: 005 Serial Number: XXXXXXXXXX UUID: 00000000-0000-1000-8000-XXXXXXXXXXXX Wake-up Type: Power Switch Handle 0x0002, DMI type 2, 8 bytes Base Board Information Manufacturer: Matsushita Electric Industrial Co.,Ltd. Product Name: CFW2-5 Version: 001 Serial Number: None Handle 0x0003, DMI type 3, 17 bytes Chassis Information Manufacturer: Matsushita Electric Industrial Co.,Ltd. Type: Notebook Lock: Not Present Version: 001 Serial Number: None Asset Tag: No Asset Tag Boot-up State: Unknown Power Supply State: Safe Thermal State: Safe Security Status: Unknown OEM Information: 0x00000000 Handle 0x0004, DMI type 4, 35 bytes Processor Information Socket Designation: IC1 Type: Central Processor Family: Unknown Manufacturer: GenuineIntel ID: D6 06 00 00 BF F9 E9 AF Version: Intel(R) Pentium(R) M processor 1.10GHz Voltage: 0.9 V External Clock: 400 MHz Max Speed: 1100 MHz Current Speed: 1100 MHz Status: Populated, Enabled Upgrade: None L1 Cache Handle: 0x0008 L2 Cache Handle: 0x0009 L3 Cache Handle: Not Provided Serial Number: Not Specified Asset Tag: Not Specified Part Number: Not Specified Handle 0x0005, DMI type 5, 20 bytes Memory Controller Information Error Detecting Method: None Error Correcting Capabilities: None Supported Interleave: Other Current Interleave: Other Maximum Memory Module Size: 512 MB Maximum Total Memory Size: 1024 MB Supported Speeds: Unknown Supported Memory Types: DIMM SDRAM Memory Module Voltage: Unknown Associated Memory Slots: 2 0x0006 0x0007 Enabled Error Correcting Capabilities: None Handle 0x0006, DMI type 6, 12 bytes Memory Module Information Socket Designation: On Board Bank Connections: 0 1 Current Speed: Unknown Type: None Installed Size: 256 MB (Double-bank Connection) Enabled Size: 256 MB (Double-bank Connection) Error Status: OK Handle 0x0007, DMI type 6, 12 bytes Memory Module Information Socket Designation: 172 Micro DIMM-CN7 Bank Connections: 2 3 Current Speed: Unknown Type: DIMM SDRAM Installed Size: 512 MB (Double-bank Connection) Enabled Size: 512 MB (Double-bank Connection) Error Status: OK Handle 0x0008, DMI type 7, 19 bytes Cache Information Socket Designation: L1 Cache Configuration: Enabled, Not Socketed, Level 1 Operational Mode: Write Back Location: Internal Installed Size: 32 KB Maximum Size: 32 KB Supported SRAM Types: Unknown Installed SRAM Type: Unknown Speed: Unknown Error Correction Type: Unknown System Type: Data Associativity: Unknown Handle 0x0009, DMI type 7, 19 bytes Cache Information Socket Designation: L2 Cache Configuration: Enabled, Not Socketed, Level 2 Operational Mode: Write Back Location: Internal Installed Size: 2048 KB Maximum Size: 2048 KB Supported SRAM Types: Unknown Installed SRAM Type: Burst Speed: Unknown Error Correction Type: Unknown System Type: Unknown Associativity: Unknown Handle 0x000A, DMI type 8, 9 bytes Port Connector Information Internal Reference Designator: CN6 Internal Connector Type: None External Reference Designator: USB 0 External Connector Type: Access Bus (USB) Port Type: USB Handle 0x000B, DMI type 8, 9 bytes Port Connector Information Internal Reference Designator: CN7 Internal Connector Type: None External Reference Designator: USB 1 External Connector Type: Access Bus (USB) Port Type: USB Handle 0x000C, DMI type 8, 9 bytes Port Connector Information Internal Reference Designator: CN12 Internal Connector Type: None External Reference Designator: PC Card External Connector Type: 68 Pin Dual Inline Port Type: Cardbus Handle 0x000D, DMI type 8, 9 bytes Port Connector Information Internal Reference Designator: JK1 Internal Connector Type: None External Reference Designator: MIC External Connector Type: Mini Jack (headphones) Port Type: Audio Port Handle 0x000E, DMI type 8, 9 bytes Port Connector Information Internal Reference Designator: JK2 Internal Connector Type: None External Reference Designator: Headphone External Connector Type: Mini Jack (headphones) Port Type: Audio Port Handle 0x000F, DMI type 8, 9 bytes Port Connector Information Internal Reference Designator: CN9 Internal Connector Type: None External Reference Designator: EXT.DISPLAY External Connector Type: DB-15 female Port Type: Video Port Handle 0x0010, DMI type 8, 9 bytes Port Connector Information Internal Reference Designator: CN802 Internal Connector Type: None External Reference Designator: SD Card External Connector Type: Proprietary Port Type: Other Handle 0x0011, DMI type 8, 9 bytes Port Connector Information Internal Reference Designator: CN18 Internal Connector Type: Other External Reference Designator: Modem External Connector Type: RJ-11 Port Type: Modem Port Handle 0x0012, DMI type 8, 9 bytes Port Connector Information Internal Reference Designator: CN14 Internal Connector Type: Other External Reference Designator: LAN External Connector Type: RJ-45 Port Type: Network Port Handle 0x0013, DMI type 8, 9 bytes Port Connector Information Internal Reference Designator: CN15 Internal Connector Type: Other External Reference Designator: Wireless LAN External Connector Type: None Port Type: Network Port Handle 0x0014, DMI type 9, 13 bytes System Slot Information Designation: PC Card Type: 32-bit PC Card (PCMCIA) Current Usage: Unknown Length: Other ID: Adapter 0, Socket 0 Characteristics: 5.0 V is provided 3.3 V is provided PC Card-16 is supported Cardbus is supported PME signal is supported Hot-plug devices are supported Handle 0x0015, DMI type 9, 13 bytes System Slot Information Designation: SD Card Type: Other Current Usage: Available Length: Other Characteristics: 3.3 V is provided Hot-plug devices are supported Handle 0x0016, DMI type 9, 13 bytes System Slot Information Designation: mini PCI Type: 32-bit PCI Current Usage: In Use Length: Other ID: 0 Characteristics: 5.0 V is provided 3.3 V is provided PME signal is supported Handle 0x0017, DMI type 10, 10 bytes On Board Device 1 Information Type: Video Status: Enabled Description: Intel 855GM On Board Device 2 Information Type: Sound Status: Enabled Description: Sigmatel 9753 On Board Device 3 Information Type: Ethernet Status: Enabled Description: Realtek 8101L Fast Ethernet Handle 0x0018, DMI type 11, 5 bytes OEM Strings String 1: UNDEFINED\n Handle 0x0019, DMI type 13, 22 bytes BIOS Language Information Installable Languages: 2 en|US|iso8859-1 ja|JP|unicode-1 Currently Installed Language: ja|JP|unicode-1 Handle 0x001A, DMI type 16, 15 bytes Physical Memory Array Location: System Board Or Motherboard Use: System Memory Error Correction Type: None Maximum Capacity: 1 GB Error Information Handle: Not Provided Number Of Devices: 2 Handle 0x001B, DMI type 16, 15 bytes Physical Memory Array Location: System Board Or Motherboard Use: Flash Memory Error Correction Type: None Maximum Capacity: 512 kB Error Information Handle: Not Provided Number Of Devices: 1 Handle 0x001C, DMI type 17, 27 bytes Memory Device Array Handle: 0x001A Error Information Handle: No Error Total Width: 64 bits Data Width: 64 bits Size: 256 MB Form Factor: TSOP Set: None Locator: Onboard Bank Locator: Onboard Type: DDR Type Detail: Synchronous Speed: Unknown Manufacturer: Not Specified Serial Number: Not Specified Asset Tag: Not Specified Part Number: Not Specified Handle 0x001D, DMI type 17, 27 bytes Memory Device Array Handle: 0x001A Error Information Handle: No Error Total Width: 64 bits Data Width: 64 bits Size: 512 MB Form Factor: DIMM Set: None Locator: DIMM Bank Locator: DIMM Type: DDR Type Detail: Synchronous Speed: Unknown Manufacturer: Not Specified Serial Number: Not Specified Asset Tag: Not Specified Part Number: Not Specified Handle 0x001E, DMI type 17, 27 bytes Memory Device Array Handle: 0x001B Error Information Handle: No Error Total Width: 8 bits Data Width: 8 bits Size: 512 kB Form Factor: TSOP Set: None Locator: Flash ROM Bank Locator: Flash ROM Type: Flash Type Detail: Non-Volatile Speed: Unknown Manufacturer: Not Specified Serial Number: Not Specified Asset Tag: Not Specified Part Number: Not Specified Handle 0x001F, DMI type 19, 15 bytes Memory Array Mapped Address Starting Address: 0x00000000000 Ending Address: 0x0000FFFFFFF Range Size: 256 MB Physical Array Handle: 0x001A Partition Width: 0 Handle 0x0020, DMI type 19, 15 bytes Memory Array Mapped Address Starting Address: 0x00010000000 Ending Address: 0x0002FFFFFFF Range Size: 512 MB Physical Array Handle: 0x001A Partition Width: 0 Handle 0x0021, DMI type 19, 15 bytes Memory Array Mapped Address Starting Address: 0x000FFF80000 Ending Address: 0x000FFFFFFFF Range Size: 512 kB Physical Array Handle: 0x001B Partition Width: 0 Handle 0x0022, DMI type 20, 19 bytes Memory Device Mapped Address Starting Address: 0x00000000000 Ending Address: 0x0000FFFFFFF Range Size: 256 MB Physical Device Handle: 0x001C Memory Array Mapped Address Handle: 0x001F Partition Row Position: 1 Handle 0x0023, DMI type 20, 19 bytes Memory Device Mapped Address Starting Address: 0x00010000000 Ending Address: 0x0002FFFFFFF Range Size: 512 MB Physical Device Handle: 0x001D Memory Array Mapped Address Handle: 0x0020 Partition Row Position: 1 Handle 0x0024, DMI type 20, 19 bytes Memory Device Mapped Address Starting Address: 0x000FFF80000 Ending Address: 0x000FFFFFFFF Range Size: 512 kB Physical Device Handle: 0x001E Memory Array Mapped Address Handle: 0x0021 Partition Row Position: 1 Handle 0x0025, DMI type 21, 7 bytes Built-in Pointing Device Type: Touch Pad Interface: PS/2 Buttons: 2 Handle 0x0026, DMI type 255, 7 bytes OEM-specific Type Header and Data: FF 07 26 00 08 A2 00 Handle 0x0027, DMI type 22, 26 bytes Portable Battery Location: in the back Manufacturer: Panasonic Manufacture Date: Serial Number: Name: CF-VZSU27A Chemistry: Lithium Ion Design Capacity: 52170 mWh Design Voltage: 7400 mV SBDS Version: Not Specified Maximum Error: 0% OEM-specific Information: 0x00000000 Handle 0x0028, DMI type 32, 11 bytes System Boot Information Status: No errors detected Handle 0x0029, DMI type 127, 4 bytes End Of Table
ここまで情報が取れるんですねぇ… バッテリーの容量や電圧まで表示されてるし．なんか System Information の Serial Number とか PC の本体の裏にシールで張ってあるシリアルナンバーがそのまま表示されててちょっとびっくり．
何故こんなツールが標準でインストールされているのかというとどうもインストール時のログを収集するのに使う模様．インストールに失敗した時のハードウェア構成の情報とかを正確に集められるようにインストーラが使うんじゃないだろうか？
