AE_NO_ACPI_TABLES: Is BIOS Update the First Step?

From: David Marshall (dmarshall_at_gmail.com)
Date: 05/30/05

  • Next message: Alex Zbyslaw: "Re: SB Awe 64 ISA PNP Problem Model CT4500" 
    Date: Mon, 30 May 2005 09:16:29 -0700
To: freebsd-questions@freebsd.org

    Hi,

    My boss just put a new server in our colo. It has a Tyan Thunder K8SR
    motherboard with 2 Opterons. When I boot an SMP kernel, dmesg.boot
    includes the following:

    CPU: AMD Opteron(tm) Processor 246 (1991.88-MHz K8-class CPU)
     Origin = "AuthenticAMD" Id = 0xf58 Stepping = 8
     Features=0x78bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CM
    OV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2>
     AMD Features=0xe0500800<SYSCALL,NX,MMX+,LM,3DNow+,3DNow>
    real memory = 2147483648 (2048 MB)
    avail memory = 2061676544 (1966 MB)
       ACPI-0159: *** Error: AcpiLoadTables: Could not get RSDP, AE_NO_ACPI_TABLES
       ACPI-0213: *** Error: AcpiLoadTables: Could not load tables: AE_NO_ACPI_TABL
    ES
    ACPI: table load failed: AE_NO_ACPI_TABLES

    My searches have indicated that the most prevalent causes of this are
    ACPI not being enabled or an out-of-date BIOS. The motherboard manual
    indicates that ACPI is enabled by default, so should our next step be
    just to update the BIOS and hope for the best?

    Is there a clever way to determine our BIOS version without physically
    accessing the server?

    TIA!
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