1BIOSDECODE(8) System Manager's Manual BIOSDECODE(8)
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6 biosdecode - BIOS information decoder
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9 biosdecode [OPTIONS]
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12 biosdecode parses the BIOS memory and prints information about all
13 structures (or entry points) it knows of. Currently known entry point
14 types are:
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16 · SMBIOS (System Management BIOS)
17 Use dmidecode for a more detailed output.
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19 · DMI (Desktop Management Interface, a legacy version of SMBIOS)
20 Use dmidecode for a more detailed output.
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22 · SYSID
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24 · PNP (Plug and Play)
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26 · ACPI (Advanced Configuration and Power Interface)
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28 · BIOS32 (BIOS32 Service Directory)
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30 · PIR (PCI IRQ Routing)
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32 · 32OS (BIOS32 Extension, Compaq-specific)
33 See ownership for a Compaq ownership tag retrieval tool.
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35 · SNY (Sony-specific, not decoded)
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37 · VPD (Vital Product Data, IBM-specific)
38 Use vpddecode for a more detailed output.
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40 · FJKEYINF (Application Panel, Fujitsu-specific)
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43 biosdecode started its life as a part of dmidecode but as more entry
44 point types were added, it was moved to a different program.
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47 -d, --dev-mem FILE
48 Read memory from device FILE (default: /dev/mem)
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50 --pir full
51 Decode the details of the PCI IRQ routing table
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53 -h, --help
54 Display usage information and exit
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56 -V, --version
57 Display the version and exit
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60 /dev/mem
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63 Most of the time, biosdecode prints too much information (you don't
64 really care about addresses) or not enough (because it doesn't follow
65 pointers and has no lookup tables).
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68 Alan Cox, Jean Delvare
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71 dmidecode(8), mem(4), ownership(8), vpddecode(8)
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75dmidecode February 2007 BIOSDECODE(8)