qemu/kvm and Vista

Thursday, June 18. 2009

As I've seen some bug reports on this issue and no solution I thought I'd post mine:

Running Vista in qemu/kvm is mostly no problem. Except for user mode networking. Apparently Vista decides that it doesn't like the qemu DHCP server and ignores the IP it is assigned. Of course user net doesn't work then.

The simple solution is to give Vista a fixed IP, but which IP should you actually give it? There's only one that makes everything work right, and that is 10.0.2.15. Found this out by looking through the qemu code. If you don't use this IP then -redir won't work. And that was a major issue for me.

Hope it helps somebody.

Posted by Matthias Kretz in University at 16:11 | Comments (8) | Trackbacks (0)

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what about the gateway address and subnet mask?

#1 kedadi on 2009-06-18 16:23 (Reply)

That part is documented on the qemu homepage, which is why I forgot to mention it.
Subnet 255.255.255.0
Gateway 10.0.2.2
DNS 10.0.2.3

See also: http://www.nongnu.org/qemu/qemu-doc.html#SEC32

#1.1 Matthias Kretz (Homepage) on 2009-06-18 17:29 (Reply)

Ha, I see that actually the qemu docs also say the right IP (just not that it's necessary to make -redir work). For some reason I never noticed it

#2 Matthias Kretz (Homepage) on 2009-06-18 17:32 (Reply)

Have you tried VirtualBox? I'm about to setup several images (mix between XP, W7, Linux) and I have not decided if I should use [QK]emu or VirtualBox.

Any suggestions? I think I'll be running the hosts on a Linux box.

Sam

#3 Sam on 2009-06-18 18:20 (Reply)

qemu seems to be completely open why virtualbox offers some features (like usb) only available in a non-free (as in freedom) version.

#3.1 anon on 2009-06-18 22:56 (Reply)

I was using VirtualBox with Vista before but switched to kvm because of the SMP support for guest systems. Apparently VirtualBox 3 will finally have that, though.

I can recommend kvm, but VirtualBox is very easy to set up and also works good.

#3.2 Matthias Kretz (Homepage) on 2009-06-19 10:34 (Reply)

i chose to configure networkinf in qemu myself as result i have bridged and getting ip address from conventional dhcp server that i already had in my network. I would like to note, that dhcp client on Vista works weirdly (if you loose connection sometimes vista just refuses to renew its ip address and does not work)

#4 Osis on 2009-06-19 07:25 (Reply)

My goal was to have the Vista machine not on the network except for RDP access from outside (because using RDP is much nicer than the VNC support from qemu).

Now I don't have to worry much about security issues with this system.

#4.1 Matthias Kretz (Homepage) on 2009-06-19 10:38 (Reply)

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