HELP. Ubuntu11.04 / win7 guest :: Failed to open a session

Discussions about using Windows guests in VirtualBox.

HELP. Ubuntu11.04 / win7 guest :: Failed to open a session

Postby rosco » 17. Sep 2011, 07:39

HP ProBook 4730s / Ubuntu 11.04 / Win 7 (64 bit guest) / VBox 4.1.2 with extensions
Installed from Oracle site & Ubuntu Software Centre.

It worked once and now reports this error every time on Start:

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Failed to open a session for the virtual machine win7.
VT-x features locked or unavailable in MSR. (VERR_VMX_MSR_LOCKED_OR_DISABLED).
Result Code: NS_ERROR_FAILURE (0x80004005)
Component: Console
Interface: IConsole {1968b7d3-e3bf-4ceb-99e0-cb7c913317bb}

Output from id:
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uid=1000(anish) gid=1000(anish) groups=1000(anish),4(adm),20(dialout),24(cdrom),46(plugdev),112(lpadmin),120(admin),122(sambashare),123(vboxusers)

Output from VBoxManage showvminfo "win7":
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VBoxManage showvminfo "win7"
Name:            win7
Guest OS:        Windows 7 (64 bit)
UUID:            b81d33eb-edb5-41ab-b7cb-c5ee231f7821
Config file:     /home/anish/VirtualBox VMs/win7/win7.vbox
Snapshot folder: /home/anish/VirtualBox VMs/win7/Snapshots
Log folder:      /home/anish/VirtualBox VMs/win7/Logs
Hardware UUID:   b81d33eb-edb5-41ab-b7cb-c5ee231f7821
Memory size:     4096MB
Page Fusion:     off
VRAM size:       21MB
CPU exec cap:    100%
HPET:            off
Chipset:         piix3
Firmware:        BIOS
Number of CPUs:  1
Synthetic Cpu:   off
CPUID overrides: None
Boot menu mode:  message and menu
Boot Device (1): Floppy
Boot Device (2): DVD
Boot Device (3): HardDisk
Boot Device (4): Not Assigned
ACPI:            on
IOAPIC:          on
PAE:             off
Time offset:     0 ms
RTC:             local time
Hardw. virt.ext: on
Hardw. virt.ext exclusive: on
Nested Paging:   off
Large Pages:     off
VT-x VPID:       on
State:           powered off (since 2011-09-17T05:17:19.682000000)
Monitor count:   1
3D Acceleration: off
2D Video Acceleration: off
Teleporter Enabled: off
Teleporter Port: 0
Teleporter Address:
Teleporter Password:
Storage Controller Name (0):            IDE Controller
Storage Controller Type (0):            PIIX4
Storage Controller Instance Number (0): 0
Storage Controller Max Port Count (0):  2
Storage Controller Port Count (0):      2
Storage Controller Bootable (0):        on
Storage Controller Name (1):            SATA Controller
Storage Controller Type (1):            IntelAhci
Storage Controller Instance Number (1): 0
Storage Controller Max Port Count (1):  30
Storage Controller Port Count (1):      1
Storage Controller Bootable (1):        on
IDE Controller (1, 0): Empty
SATA Controller (0, 0): /home/anish/VirtualBox VMs/win7/win7.vdi (UUID: 2be95da8-3fa2-42c9-8e01-4ea05d707c1c)
NIC 1:           MAC: 0800278ABD99, Attachment: NAT, Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps, Boot priority: 0, Promisc Policy: deny
NIC 1 Settings:  MTU: 0, Socket (send: 64, receive: 64), TCP Window (send:64, receive: 64)
NIC 2:           disabled

NIC 3:           disabled
NIC 4:           disabled
NIC 5:           disabled
NIC 6:           disabled
NIC 7:           disabled
NIC 8:           disabled
Pointing Device: USB Tablet
Keyboard Device: PS/2 Keyboard
UART 1:          disabled
UART 2:          disabled
Audio:           enabled (Driver: PulseAudio, Controller: HDA)
Clipboard Mode:  Bidirectional
VRDE:            disabled
USB:             enabled
USB Device Filters:
Available remote USB devices:
Currently Attached USB Devices:
Shared folders:  <none>

Would appreciate any direction to help solve.
Posts: 1
Joined: 17. Sep 2011, 07:19
Primary OS: Ubuntu other
VBox Version: OSE Debian
Guest OSses: win 7

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