[Solved] vt-x/AMD-V hardware acceleration is not available on your system. Help??

[craiglogan]

Ok So i have just tried opening windows 8 32bit VM on a new laptop. It has intel Ceron N3060 processor.

i am pretty sure i have used another laptop with the processor before and it was fine. I tried following some stuff on google. They all told me to check in VT-x was enabled. I downloaded CPUID and confirmed it was enabled. WIth no advice if it was enabled.

Now my windows 7 VM is running fine, its just this windows 8 wont run. Is there anyway to resolve this?

I've attached a log in case it helps.


thanks in advance

[socratis]

I downloaded CPUID and confirmed it was enabled.

No. What you did was to show that your CPU has that capability. Not that it's enabled, nor that it's available. It's not enabled:

00:00:06.344749 HM: HMR3Init: Falling back to raw-mode: VT-x is disabled in the BIOS for all CPU modes

[craiglogan]

Ahh. Thanks for the quick reply so i should enable it in the Bios correct?

Also why did win 7 VM run fine with it disabled?

[andyp73]

Once you get past that there might be a couple of other gotchas waiting for you:

00:00:05.821417 Host RAM: 4001MB (3.9GB) total, 1206MB available
00:00:06.343472 RamSize <integer> = 0x0000000080000000 (2 147 483 648, 2 048 MB)

00:00:08.804804 CPUM: Logical host processors: 2 present, 2 max, 2 online, online mask: 0000000000000003
00:00:08.804808 CPUM: Physical host cores: 2

Looks like you might be overcommitting resources to the guest (or I may be reading the log file wrong).

-Andy.

[socratis]

i should enable it in the Bios correct?

Yes.

why did win 7 VM run fine with it disabled?

Because some VMs do not require VT-x. Some do. The Win ≥ 8 guests do require VT-x, even in real life.

or I may be reading the log file wrong

Not wrong at all, spot on! Resources are scarce and on the limit of stressing out the host as well...

[craiglogan]

Many thanks. Yes i bumped up the guest to 2gb of 4gb just when i was trying to self diagnose the issue. I've turned it down a bit now. 4gb's not ideal for win8 but beggers can't be choosers lol

Thanks for the help all is working well now

On another note, when ever i've tried to use me intel created VM's on an AMD system i've got errors. Is there some settings i can change in my VM to make them work on AMD systems?

[socratis]

Thanks for the help all is working well now

Glad you got it going. Marking as [Solved].

when ever i've tried to use me intel created VM's on an AMD system i've got errors

What errors exactly? There's nothing that should be changing if you move from an Intel to an AMD system. If you want to continue this, please open a new thread, with an appropriate title; one topic per thread.

[mpack]

A CPU change is likely to cause activation issues with Win7+ guests I'd have thought. Not a problem, just reactivate - assuming the original installs are no longer to be used. Another potential source of errors are moving VMs between hosts while the VM is in a suspended state.