Gentoo Archives: gentoo-user

From: Valmor de Almeida <val.gentoo@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] vbox 64-bit guest will fail to detect a 64-bit CPU and will not be able to boot.
Date: Wed, 12 Jan 2011 08:09:09
Message-Id: 4D2D6078.7050402@gmail.com
In Reply to: Re: [gentoo-user] vbox 64-bit guest will fail to detect a 64-bit CPU and will not be able to boot. by kashani
1 On 01/12/2011 02:48 AM, kashani wrote:
2 > On 1/11/2011 11:04 PM, Valmor de Almeida wrote:
3 >> Hello,
4 >>
5 >> I am trying to build a windows 7 guest using virtualbox-ose-3.1.8. When
6 >> starting the virtual machine to install the OS, I get the warning:
7 >>
8 >> "VT-x/AMD-V hardware acceleration has been enabled, but is not
9 >> operational. Your 64-bit guest will fail to detect a 64-bit CPU and will
10 >> not be able to boot.
11 >>
12 >> Please ensure that you have enabled VT-x/AMD-V properly in the BIOS of
13 >> your host computer."
14 >>
15 >> I have enabled the following in the BIOS:
16 >>
17 >> Intel(R) Virtualization Technology
18 >> Intel(R) VT-d Feature
19 >>
20 >> I have not created a KVM module in the kernel (using
21 >> gentoo-sources-2.6.34-r12). Is this needed?
22 >
23 > Couple of things to check.
24 >
25 > 1. Make sure you've turned on all the related BIOS features that may be
26 > related. Sometimes it's more than one or two depending on the manufacturer.
27
28 Those options are the only things available on the BIOS.
29
30 >
31 > 2. Verify that your chip supports 64bit VT. I found out recently that my
32 > Intel T6600 while 64bit can only run 32bit guests.
33
34 Okay. Will have to check on that.
35
36 >
37 > 3. You're running vbox 3.1.8 which is stable for x86 while vbox 3.2.12
38 > is stable for amd64. Is your host OS 32bit?
39
40 My gentoo is amd64; yes my portage tree could be updated.
41
42 -> emerge --info
43 Portage 2.1.8.3 (default/linux/amd64/10.0, gcc-4.4.4, glibc-2.11.2-r3,
44 2.6.34-gentoo-r12 x86_64)
45 =================================================================
46 System uname:
47 Linux-2.6.34-gentoo-r12-x86_64-Intel-R-_Core-TM-_i7_CPU_L_640_@_2.13GHz-with-gentoo-1.12.14
48 Timestamp of tree: Sat, 20 Nov 2010 15:45:01 +0000
49
50
51 Thanks,
52
53 --
54 Valmor
55
56 >
57 > kashani
58 >

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