Virtual box v4.3.12 - Linux host...

[David Love]

I have been running VirtualBox for some time on Linux Mint as Host.
currently using v4.3.12. The architcture of my computer is x64.

One thing I have noticed is that when choosing a LInux distribution to
run, only x32 versions are shown in the menu. I have tried running x64
but always receive a message that it is the incorrect architecture.

Is someone able to advise me why this is so? Am I doing something wrong?

David

[Emiliano Vazquez]

Post by David Love
I have been running VirtualBox for some time on Linux Mint as Host.
currently using v4.3.12. The architcture of my computer is x64.
One thing I have noticed is that when choosing a LInux distribution to
run, only x32 versions are shown in the menu. I have tried running x64
but always receive a message that it is the incorrect architecture.
Is someone able to advise me why this is so? Am I doing something wrong?
David

Hi David.

The architecture is x64 but what architecture have the operating system?

<code>
$ uname -a
</code>

will show the OS architecture.

best regards.

Emiliano.

[David Love]

Post by Emiliano Vazquez

Post by David Love
I have been running VirtualBox for some time on Linux Mint as Host.
currently using v4.3.12. The architcture of my computer is x64.
One thing I have noticed is that when choosing a LInux distribution to
run, only x32 versions are shown in the menu. I have tried running
x64 but always receive a message that it is the incorrect
architecture.
Is someone able to advise me why this is so? Am I doing something wrong?
David

Hi David.
The architecture is x64 but what architecture have the operating system?
<code> $ uname -a </code>
will show the OS architecture.

Hi Emiliano

Thanks for your prompt reply.

***@zed-LM-MATE ~ $ uname -a
Linux zed-LM-MATE 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC
2014 x86_64 x86_64 x86_64 GNU/Linux

I have no difficulty running x32 distributions but cannot run x64.

Note: see my answer to Gregory.

Regards

David

[Matthew Hall]

Post by David Love
I have no difficulty running x32 distributions but cannot run x64.

Probably need to take a look through the BIOS options and the CPU ID flags in
/proc/cpuinfo if you can provide that as well.

Matthew.

[Gregory Nowak]

Post by David Love
I have been running VirtualBox for some time on Linux Mint as Host.
currently using v4.3.12. The architcture of my computer is x64.
One thing I have noticed is that when choosing a LInux distribution to
run, only x32 versions are shown in the menu. I have tried running x64
but always receive a message that it is the incorrect architecture.
Is someone able to advise me why this is so? Am I doing something wrong?
David

Your processor needs to support hardware virtualization extensions to
run 64-bit guests. Since you can't select 64-bit guests when creating
new guests, this means that either hardware virtualization is disabled
in your BIOS, or that your processor doesn't support it. The latter is
true for older 64-bit processors.

Greg

[David Love]

Post by Gregory Nowak

Post by David Love
I have been running VirtualBox for some time on Linux Mint as Host.
currently using v4.3.12. The architcture of my computer is x64.
One thing I have noticed is that when choosing a LInux distribution to
run, only x32 versions are shown in the menu. I have tried running
x64 but always receive a message that it is the incorrect
architecture.
Is someone able to advise me why this is so? Am I doing something wrong?
David

Your processor needs to support hardware virtualization extensions to
run 64-bit guests. Since you can't select 64-bit guests when creating
new guests, this means that either hardware virtualization is disabled
in your BIOS, or that your processor doesn't support it. The latter is
true for older 64-bit processors.

Hi Greg

Thanks for your prompt reply.

My computer has an AMD FX(tm)-4100 Quad-Core Processor (family, model,
stepping 21.1.2 (AMD Opteron/Athlon64/FX which should satisfy the x64
requirement. However, I cannot find anywhere in the BIOS to determine
whether hardware virtualisation is enabled/disabled.

Any hints appreciated :-)

Regards

David

[Gregory Nowak]

Post by David Love
Hi Greg
Thanks for your prompt reply.
My computer has an AMD FX(tm)-4100 Quad-Core Processor (family, model,
stepping 21.1.2 (AMD Opteron/Athlon64/FX which should satisfy the x64
requirement. However, I cannot find anywhere in the BIOS to determine
whether hardware virtualisation is enabled/disabled.
Any hints appreciated :-)
Regards
David

According to:

http://www.cpu-world.com/CPUs/Bulldozer/AMD-FX-Series%20FX-4100.html

your processor does indeed support hardware virtualisation, assuming
that the above url describes your processor. As far as where to look
for hardware virtualisation in BIOS, I'm not sure. I've read that may
be disabled by default in some cases, but never had to go and find out
how to enable it myself. Hopefully someone else will be able to help
you more. Ultimately, looking at the output of /proc/cpuinfo will tell
you whether hardware virtualisation is enabled. I can't remember off
the top of my head what flag you want to look for with AMD. I think it shows up
as VTX, but I do stand to be corrected on that.

Greg

[David Love]

Post by Gregory Nowak

Post by David Love
Hi Greg
Thanks for your prompt reply.
My computer has an AMD FX(tm)-4100 Quad-Core Processor (family, model,
stepping 21.1.2 (AMD Opteron/Athlon64/FX which should satisfy the x64
requirement. However, I cannot find anywhere in the BIOS to determine
whether hardware virtualisation is enabled/disabled.
Any hints appreciated :-)
Regards
David

http://www.cpu-world.com/CPUs/Bulldozer/AMD-FX-Series%20FX-4100.html
your processor does indeed support hardware virtualisation, assuming
that the above url describes your processor. As far as where to look for
hardware virtualisation in BIOS, I'm not sure. I've read that may be
disabled by default in some cases, but never had to go and find out how
to enable it myself. Hopefully someone else will be able to help you
more. Ultimately, looking at the output of /proc/cpuinfo will tell you
whether hardware virtualisation is enabled. I can't remember off the top
of my head what flag you want to look for with AMD. I think it shows up
as VTX, but I do stand to be corrected on that.

Thanks again, Greg. Your response spiurred me to have a closer look at
the BIOS options and, lo and behold, I found an option entitled "Secure
Virtual Machine" in the Advanced - CPU Configuration settings which
was disabled. Taking a chance, 'cos I didn't really know what I
was dfoing. I Enabled it and now have the ability to load x64 systems to
VirtualBox.

I am a very happy geriatric :-)

David