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{Guide} Create a Gaming Virtual Machine - Page 46

post #451 of 650
1/12/13 at 6:03pm
Hello Rezz, great news. Looks like a nice rig!

Thanks for summarizing your installation - your information is very helpful. In particular the networking part, which I couldn't entirely solve for my domU. I also noticed I forgot the localtime=1 entry.

You'll need some more HDDs for your media center. If you're looking for speed, may I suggest getting 2 identical low-cost "green" HDD and running them LVM striped - it works beautifully, even between domU/dom0. GPLPV driver for the HDD is necessary, though. By the way, you can get signed drivers from the univention website (if you plan to replace the drivers, you may have to get the uninstall batch file from meadows and read the comments!!!).

Several minutes boot time is a lot! My rig takes about 35 sec. cold boot into Linux Mint 13 dom0, then another 30 sec. to load Windows 7 from the moment I press the launcher.
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post #452 of 650
1/12/13 at 10:19pm
Thread Starter 
Great Post Rezz! I had to do the same thing with Microsoft over the ohone on friday because of GPLPV drivers. I am going to put a notice about GPLPV in the first post too! Credits to all of you in the next release. I am thinking of making it a Mint release due to the centOS issues I am having getting a working live-cd image.
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post #453 of 650
1/13/13 at 1:12am
Quote:
Originally Posted by dizzy4 View Post

Great Post Rezz! I had to do the same thing with Microsoft over the ohone on friday because of GPLPV drivers. I am going to put a notice about GPLPV in the first post too! Credits to all of you in the next release. I am thinking of making it a Mint release due to the centOS issues I am having getting a working live-cd image.

Oh wow - that's quite a change, from Fedora/CentOS to Mint. I don't know how much experience you have with Mint, so here a few thoughts you may want to consider:
1. Linux Mint is a desktop OS - they don't have a server edition. That said it uses the Ubuntu repository and has a wealth of packages, including Xen (4.1.x with both LM13 and LM14).
2. It doesn't come with the latest kernel and packages.
3. pciback is NOT compiled into the kernel, which makes things a bit different and perhaps limits the ability to use it for primary VGA passthru. On the other hand, there should be a way to grab the VGA and assign it to pciback before the graphics driver takes control, or simply blacklist the driver. Anyway, you should be aware of that.
4. No LVM install option, but the latest LM 14 release has at least some LVM support out of the box. It's not a big deal to get it working, and I can send you the link to my how-to if needed.

I'm very prejudiced about Mint, but wanted to acknowledge its shortcomings.
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post #454 of 650
1/14/13 at 1:48pm
Ok, so I finally got to mess with my VM for a little bit again...

Well, it doesn't work. Device manager says it is working properly, the drivers are installed, but it is BSODing a huge lot, and if I try to access the settings, it says I am not using a display that is attached to a nvidia GPU (I am). No idea what I can do now...
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post #455 of 650
1/14/13 at 2:07pm
Thread Starter 
Quote:
Originally Posted by Chetyre View Post

Ok, so I finally got to mess with my VM for a little bit again...

Well, it doesn't work. Device manager says it is working properly, the drivers are installed, but it is BSODing a huge lot, and if I try to access the settings, it says I am not using a display that is attached to a nvidia GPU (I am). No idea what I can do now...

It might have to do with you using an Nvida card. There are patches for better compatibility if you care to compile xen from source. However, it seems that you are close.

Try setting nographic=1 in the VM config and try disabling the other adapter in device manager. Hopefully that will solve the problems.
Quote:
Originally Posted by powerhouse View Post

Oh wow - that's quite a change, from Fedora/CentOS to Mint. I don't know how much experience you have with Mint, so here a few thoughts you may want to consider:
1. Linux Mint is a desktop OS - they don't have a server edition. That said it uses the Ubuntu repository and has a wealth of packages, including Xen (4.1.x with both LM13 and LM14).
2. It doesn't come with the latest kernel and packages.
3. pciback is NOT compiled into the kernel, which makes things a bit different and perhaps limits the ability to use it for primary VGA passthru. On the other hand, there should be a way to grab the VGA and assign it to pciback before the graphics driver takes control, or simply blacklist the driver. Anyway, you should be aware of that.
4. No LVM install option, but the latest LM 14 release has at least some LVM support out of the box. It's not a big deal to get it working, and I can send you the link to my how-to if needed.

I'm very prejudiced about Mint, but wanted to acknowledge its shortcomings.

Yeah it's not a big deal which distro is used, but I am looking for something that I can easily package into a livecd or live-usb (livecd + persistent storage) to make it easier for users.
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post #456 of 650
1/14/13 at 2:44pm
Quote:
Originally Posted by dizzy4 View Post

It might have to do with you using an Nvida card. There are patches for better compatibility if you care to compile xen from source. However, it seems that you are close.

Try setting nographic=1 in the VM config and try disabling the other adapter in device manager. Hopefully that will solve the problems.

I am using nographic=1 and I have disabled the other adapter. I think I'll try using windows 7 instead of 8, maybe I'll have better luck.

But I don't mind compiling it from source. Could you direct me to the relevant patches?
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post #457 of 650
1/14/13 at 2:53pm
Thread Starter 
Links to the patches can be found at the bottom of this page:

http://wiki.xen.org/wiki/Xen_VGA_Passthrough

There are several and I have no clue what the status is currently.

It seems like you are getting close. Can you get anything at all to display on the Nvidia card? If it is displaying and BSODing later there might be some driver updates you could try. Are you also passing through the Audio portion (if it has one)?
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post #458 of 650
1/14/13 at 3:31pm
It is not displaying anything, it just BSODs randomly connected to VNC which is the only thing available for me. There is no audio portion to this card, the only audio device I have is my onboard one.

What does happen though is that my monitor glitches on the analog part while the VM is running. I am using the same monitor. VGA is onboard, and DVI is the nvidia card. I don't think that should happen, since they are separate display adaptors.
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post #459 of 650
1/14/13 at 3:35pm
Thread Starter 
Quote:
Originally Posted by Chetyre View Post

It is not displaying anything, it just BSODs randomly connected to VNC which is the only thing available for me. There is no audio portion to this card, the only audio device I have is my onboard one.

What does happen though is that my monitor glitches on the analog part while the VM is running. I am using the same monitor. VGA is onboard, and DVI is the nvidia card. I don't think that should happen, since they are separate display adaptors.

I notice that happens when I try to pass through my HD 2000 onboard graphics. I Assume that it isn't patched properly so I think that patching would be the best bet. A second thought is that it isn't releasing all the resources properly from the host. It might be trying to assign memory from the IGP in a weird way or getting confused with linux drivers. Try booting in text mode or generic VGA mode and seeing what happens before you try patching.
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post #460 of 650
1/14/13 at 4:28pm
I'm running a headless system. I can try changing the runtime to single user, but I don't think that will do anything.

The soonest I can guarantee I can play with my pc again will be on Thursday, so until then I'd appreciate any ideas of things to try.



EDIT: I went to my motherboard's (Asrock Z77 Extreme4) page and there is a bios update that mentions something about VT-D, but it sounds very engrish to me.

Quote:
1. Support UEFI PXE boot.
2. Modify VT-d Capability will be unsupported after flashing BIOS P2.50.

I am running bios version 2.50. Maybe that update broke VT-D support somehow? I'll try finding more about it.
Edited by Chetyre - 1/14/13 at 4:38pm
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