Hi All, I am a newbie using VirtualBox 3.1.4 on a Ubuntu 9.10 (Karmic) i386 host. I have problem starting a new virtual machine that I have not yet installed any system on it.
When the VM is started, a dialog appears saying that : Failed to start the virtual machine WinXP Pro (for VirtualBox 3.1.4). VirtualBox can't operate in VMX root mode. Please disable the KVM kernel extension, recompile your kernel and reboot (VERR_VMX_IN_VMX_ROOT_MODE). Details : Result Code: NS_ERROR_FAILURE (0x80004005) Component: Console Interface: IConsole {6375231a-c17c-464b-92cb-ae9e128d71c3} The settings of my new VM are : General Name: WinXP Pro (for VirtualBox 3.1.4) OS Type: Windows XP  System Base Memory: 256 MB Processor(s): 1 Boot Order: Floppy, CD/DVD-ROM, Hard Disk VT-x/AMD-V: Disabled Nested Paging: Disabled  Display Video Memory: 16 MB 3D Acceleration: Disabled 2D Video Acceleration: Disabled Remote Display Server: Disabled  Storage IDE Controller IDE Primary Master: Win XP Pro.vdi (Normal, 10.00 GB) IDE Secondary Master (CD/DVD): Host Drive HL-DT-ST DVD-RAM GSA-H54N (sr0) Floppy Controller Floppy Device 0: Empty  Audio Host Driver: PulseAudio Controller: ICH AC97  Network Adapter 1: PCnet-FAST III (NAT)  Serial Ports Disabled  USB Device Filters: 0 (0 active)  Shared Folders None My motherboard has the amd64 architecture with 2GB ram. However, I am using the Ubuntu Karmic Desktop i386 (32bit) as a host with the "vmlinuz-2.6.31-19-generic" kernel that I think it is the most current stable release. Could anyone suggest a solution to fix this problem? Regards Lawrence
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