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I can't seem to get Win8 up and running in a VM built on Ubuntu with VirtualManager. Is there something about it that prevents running as a guest? It gets as far as the screen below:

enter image description here

and then it's just: enter image description here

I'm running a core i7 2630M, with 2G of mem and 1/2 processors allocated (tried both). XP works fine on the exact same VM configuration.

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How about some hardware specs? VT? Have you confirmed qemu provides the requirements to host Win 8? Have you tried anything in attempts to get it working? – Ƭᴇcʜιᴇ007 Sep 24 '11 at 16:15
You can definitely run win8 guest in kvm. I can confirm that.. – Lelouch Lamperouge Mar 19 '12 at 1:41
up vote 3 down vote accepted

Make sure you pass the CPU type to qemu to get VT-x. Once I did that it worked just fine.

/usr/bin/qemu-kvm -S -M pc-0.13 -cpu core2duo,+lahf_lm,+sse4.1,+xtpr,+cx16,+tm2,+est,+vmx,+ds_cpl,+pbe,+tm,+ht,+ss,+acpi,+ds ....

If you use virt-manager, click on advanced prefs -> Processor -> Configuration -> Copy host CPU configuration -> Apply. Restart your VM and with some luck, it should work.

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I believe Win8 requires VT-x. See this article for getting it working on VirtualBox, for example.

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The i7 2630QM has VT-x; the only two V techs not on that chip are the Vt-d (directed I/O) and Trusted Execution. – Bryan Agee Sep 24 '11 at 16:55

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