Hi,
the guest additions are not a strict requirement to use CPU hot-plugging but
they make things
a lot easier.
You can enable a added CPU in the guest manually. Look here for more
information:
https://www.virtualbox.org/manual/ch09.html#cpuhotplug
Ejecting a CPU is bit more difficult because the path in the sysfs tree differs
based on the kernel version.
You have to search for the eject file in one of the directories and write a 1
to it to disable the CPU.
Search for ACPI0004, LNX_CPU or ACPI_CPU directories.
You can remove the CPU from the guest after ejecting it.
Regards,
Alexander Eichner
On 24.10.2011 10:07 [email protected] wrote:
> I want to play with hot adding/removing CPU's in my virtual machines,
> but apparently I need to have the gest stuff installed...
>
> (pysical machine):
> [celia.pts/6]$ VBoxManage controlvm 'Debian ZFS Tests' unplugcpu 1
> VBoxManage: error: Hot-Remove was aborted because the CPU may still be
> used by the guest
> VBoxManage: error: Details: code VBOX_E_VM_ERROR (0x80bb0003),
> component Console, interface IConsole, callee nsISupports
> Context: "HotUnplugCPU(n)" at line 137 of file VBoxManageControlVM.cpp
>
> But after a whole day trying to install/build the modules etc, I now
> get
> this:
>
> (virtual machine):
> root@lenny:~# /etc/init.d/vboxadd-service start
> Starting VirtualBox Guest Addition service VBoxService: error: Control:
> Failed to connect to the guest property service! Error:
> VERR_INVALID_PARAMETER
> VBoxService: error: Service 'control' failed pre-init:
> VERR_INVALID_PARAMETER
> ...done.
>
>
> I'll assume it's because of my environment: x86_64 kernel, 32bit
> userlands... ?
> Just want to verify before I dig deeper...
>
> Btw, I had to force a 32bit unpack in /opt to even get this far. The
> installer
> gave me 64bit binaries...
> --
> Choose a job you love,
> and you will never have to work a day in your life.
>
>
>
> ------------------------------------------------------------------------------
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ORACLE Deutschland B.V. & Co. KG Alexander Eichner
Werkstrasse 24 Engineer, VirtualBox
71384 Weinstadt, Germany mailto:[email protected]
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------------------------------------------------------------------------------
The demand for IT networking professionals continues to grow, and the
demand for specialized networking skills is growing even more rapidly.
Take a complimentary Learning@Cisco Self-Assessment and learn
about Cisco certifications, training, and career opportunities.
http://p.sf.net/sfu/cisco-dev2dev
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