Upgrade to 4.0 Hardware Virtualization disabled

Discussion in 'Installation and Configuration' started by timaios, Nov 16, 2008.

  1. timaios

    timaios

    Messages:
    6
    I have worked under 3.0 more or less stable. Thus the Hardware virtualization seems to work.

    However after the upgrade to 4.0 the virtual machine start fails with the error message:
    "Unable to start the virtual machine "xyz.. The virtual machine cannot be started because the hardware
    virtualization support is disabled on your mac..."

    1) this can not be true. See my comments above. If this message would be true, 3.0 would not have worked

    2) "..contact the parallels support team for assistance". ok, how ?? in the website
    http://www.parallels.com/support/desktop/upgrade/

    There are links only to the FAQ and troubleshooter, but there is no link to report issues (at least I could not find any)

    Firmware update in my MacMini is up2date.

    Any idea?

    Thanks

    Alex
     
  2. Relan

    Relan Parallels Developers

    Messages:
    78
    PD 3.0 can work in software virtualization mode (i.e. without VT-x). PD 4.0 does not support this mode anymore.
     
  3. timaios

    timaios

    Messages:
    6
    Ok, thanks. However how can I solve this issue? I have followed the FAQ and the instructions given in:
    http://kb.parallels.com/en/5653

    Resolution
    How to check that Intel VT-x is supported in CPU:
    1. Open Terminal application from Application/Utilities


    2. Copy/paste command bellow

    sysctl -a | grep machdep.cpu.features

    3. You may see output similar to the one bellow

    Mac:~ user$ sysctl -a | grep machdep.cpu.features
    kern.exec: unknown type returned
    machdep.cpu.features: FPU VME DE PSE TSC MSR PAE MCE CX8 APIC SEP MTRR PGE MCA CMOV PAT CLFSH DS ACPI MMX FXSR SSE SSE2 SS HTT TM SSE3 MON VMX EST TM2 TPR PDCM

    If you see VMX entry then CPU supports Intel VT-x feature, but it still may be disabled.
    Please install all firmware updates from Apple to resolve this issue


    I DO see the VMX entry, however it may be disabled (?). However there is no newer EFI Firmware update from Apple as the 1.1 and I have it in my MacMini (2GB, 1,67 GHZ, Leopard)

    Any idea ??

    thanks

    Alex
     
  4. timaios

    timaios

    Messages:
    6
  5. maryerss

    maryerss

    Messages:
    2
    Now that I think about it, I think I understand what Carmack et al want, and it makes a lot of sense: complete exposure of the virtual memory system through a standard DirectX interface. It would make writing something like MegaTexturing a lot simpler.
    Virtualization
     

Share This Page