*which is absolutely unnecessary for a single-machine instance, btw. && 100% you won't use it, if you don't know what it is; for example, it's also present in Oracle VM VirtualBox setup options and these are components you can skip from installing!.. not only to save space, but they won't add to your Network Adapters in Windows @Control Panel\Network and Internet\Network Connections (and make a confusing mess. :))
@@ностромов You can always remove network interfaces via the "sudo ip link delete" command or have your Network Manager software remove it and NAT isn't always practical, Bridged connections are 100% necessary for security and functionality. Try setting up your own VPS cloud solution and tell me that NAT is practical, NAT config for 10 VMs and I bet there will be all sorts of conflicts.
In case you need to setup bridge, run these 3 commands: nmcli connection add type bridge ifname virbr0 stp no nmcli connection add type bridge-slave ifname enp88s0 master virbr0 nmcli connection up bridge-virbr0 And change the enp88s0 and virbr0 accordingly.
This will even manage Gnome-boxes created VMs. Between the two, Linux gets most of the features of VirtualBox. Once you have your machine configured, Boxes will run it.
here's a way to change it from IDE to VirtIO after the OS is already installed: setdosa.blogspot.com/2013/09/moving-your-windows-guest-from-ide-to.html
@@LegoOfMe Your host OS must be Linux for virtio to work. Since you are on windows 8.1 vm on qemu windows host, install spice-guest-tools for drivers. www.spice-space.org/download.html
I'm running virt-manager on Ubuntu 20.04 and when I attempted to launch Win 8.1, I had the no bootable device error as well 03:26. I'm attempting to go back over your video to see exactly what it was that you did to remediate.
QEMU & KVM are free and open source virtualization programs that are only available on Linux and FreeBSD. You don't necessarily need to understand the difference between QEMU & KVM to use them. There are many UI's for it. GnomeBoxes is one of them witch aims to be simple. Virtmanager is another. You would not even necessarily need a GUI to run VMs. But you probably want one. If you're running Linux that's also probably what you wanna use. Because it's really god damn good and free! VmWare is great as well. Made by.. well VmWare. It mostly costs money and KVM while being free can actually stand it's ground against it. But VmWare is used a lot in big organisations. Especially on Servers. But they could also use something like ovirt on their servers. Then they would be using KVM. That does not necessarily mean it's free for them either. They mostly will willingly pay for support, Red Hat Enterprise Linux and so forth. VirtualBox is a virtualization software mostly only used on Windows (because there is no KVM on Windows). It gets beat by both of the above in performance and features. But it's easy to use and works fine on Windows. Works on Linux too. But for why would you use it when you have better free options available to you. And from my experience it can break pretty easiely compared to KVM by linux kernel updates.
@@shioli3927 My experience is completely different. Virtualbox is by far preferable, it is somewhat slower with respect to disk IO, but not very much. It will allow you to activate Windows, if you install the VM on the original PC with the sticker. In this way I moved e.g. my Windows XP VM, installed in 2011 on a Pentium 4 Host to Phenom II Host and again to a Ryzen Host. To compensate for the somewhat slower disk IO, I run Virtualbox on top of ZFS, which means that my VMs run almost completely from the ZFS memory cache, resulting in instantaneous response times. I can play many Linux games, like Extreme Tux Racer in Virtualbox using its 3D acceleration. Currently I run my VMs from a NVME SSD and the Linux VMs boot in ~10 seconds, like my Host OS. I use Virtualbox now for 10 years and I never had any problem with update and release upgrades on Ubuntu. Virtualbox has been all those years extremely reliable, only since 6.0.14 in the last 3 month. I had some problems with 3D acceleration for Ubuntu (Gnome) VMs, but if I switch it off, everything works fine. For me QEMU/KVM is an unfinished project for the desktop, lacking any sophistication and some options will not work. A major problem is the lack of driver compatibility with older Windows OSes. It has been clearly optimized for running on servers. I almost never can select the correct CPU using QEMU/KVM, for a Phenom II CPU, I always ended up with an Opteron Server CPU and the CPU count of the CPU selected is often wrong. Virtualbox selects the CPU of the Hosts system and allows you to change e.g. the CPU count assigned to the VM. If I want to have an activated Windows on QEMU/KVM, I move that Windows Virtualbox file from Virtualbox to QEMU/KVM. 3D acceleration of the KVM display never worked for me, VMware is reliable also, but the free version only allows you to start ONE VM, but you can circumvent it by starting VMware more times and run another VM from that seconds VMware instance.
@@bertnijhof5413 Maybe, my experience was a different one that yours. Since, I use Fedora on my Desktop they update the kernel all the time and it broke rather quickly after I had installed it (it worked again when selecting an older kernel). Most things don't really break with kernel updates so that sure was awkward. I can't tell you anymore what version it was. I have no idea it was a long time ago. It might have been a one time sample size thing. Either way I did not have such issues with KVM. Since then I used KVM on the desktop and now I actually use nothing on the desktop (mostly). Proxmox on a Server as I'm not about to play games in VMs (maybe would with a Windows VM, but then I would need a second physical GPU for passthrew or the performance would not really be what I want it to be for games). But for other things it is much more convinient for me to use proxmox now as I can use the same VM on multiple PCs with multiple OS's seemlessly. I used to use ovirt, just because I have used a lot of redhat stuff. But it's a hassle to get up and running on a single Server setup. Proxmox in comparison is really simple, easy to setup and maintain so far. It's based on debian, also uses kvm. Being only able to select "Server CPUs" is really not a big deal. They are pretty much the same damn thing anyways, just lower clock (witch does not apply for the VM it just runs on whatever clock your host CPU runs on), potentially more cores, often times no iGPU etc, sometimes they have more features than the desktop one, like being able to use ECC ram and sometimes other extra stuff. There was a time people bought server CPUs for gaming, because they where cheaper than the desktop equivalent (just without an iGPU). So there is that. Either way, CPU performance is mostly almost equivilant to running bare medal now. It's just graphics card performance that kinda s*cks since they don't really support virtualization the way modern CPUs do. So... you can passthrew an entier one, but otherwise you WILL get far worse performance in your VMs for anything that needs a GPU. With a Windows VM on Linux when you have a spare GPU that you can completely give up to your VM you can get almost equivalent performance to running Windows on bare metal in every game. Most people I have seen doing that are doing that with KVM. I'm not aware of anyone doing that with virtualbox. It may be possible. Checking the "3D Acceleration" box in virtual box isn't doing that. You get like Intel integrated graphics performance, even if you have a 2080ti. If you passthrew the entier 2080ti you get 2080ti performance with your 2080ti, but your host can no longer use the graphics card.
@@shioli3927 What is awkward, that you tried to use Virtualbox with kernels that had not been tested with that Vbox release! Of course it will almost always break! Virtualbox and KVM are tightly integrated with the kernels. Of course KVM is part of the kernel, so no problem. It will have been tested as part of that kernel release. However Vbox is not part of the kernel and with each kernel release Oracle has to retest, adapt it and if needed release a new point version of Vbox for that Linux kernel. Of course the performance of 3D acceleration has nothing to do with any integrated graphics, but everything with the overhead created by the interface between Vbox and the home OS Nvidia/AMD drivers. So using 3D graphics you will be punished by a certain percentage degradation of performance. I don't know how much, but I might check it some day. Anyhow I still could play some standard Linux games using 3D acceleration and without it has been unworkable. I'm not a gamer, so I will never buy a second video card, despite that there is support for pass through of PCI and PCIe cards in Virtualbox. Those differences of CPU is important in two cases. The selected QEMU CPU (Opteron or Phenom) will have a slightly different set of instructions compared to my Phenom II CPU, so performance will be sub-optimal. The only good solution is to default for the VM to the Host CPU. The second issue is that you can't activate Windows using another CPU. On my off-lease computers I activated the Win Vista VM and the Win 7 VM on the original PC and later I moved it to my newer desktop and kept Windows up to date till it reached end-of life. That ECC RAM of a server is of course completely useless in a VM. I installed Proxmox some time ago in Vbox and it looked interesting. I abandoned it, because Virtualbox did not support nested VMs at that time, so a real test was impossible without completely changing my desktop. Now Virtualbox supports nested virtualization and I could simulate a possible future setup of Proxmox and its clients in Virtualbox. Proxmox also supports ZFS like Ubuntu, so another reason to have another look at Proxmox.
I followed all the way through, confirmed the connection, but I cannot get the shared drive to shown in my vm Computer no matter how long I wait. I have gone into services and there is a SPICE VDagent running. I restarted it and still nothing happened. I am running Manjaro.
I was scrolling comments waiting for the first person to ask this one, the beast is out of the box. It is a painful process, but once you get it down and working you can say good bye to Billy Gates NT kernel for good and in all irony it is FREE with Qemu, ALL options I know of charge or a trial software that have GPU passthrough in the mix for a virtual machine.
when im creating a vm it complains that it doest have search permissions when i try to add custom storage location for the vm. i cannot use the default location since windows takes so much space in that drive
unable to complete install: cannot access storage file '/media/mike/savehere/machine/ubuntu.qcow2 that's the error i'm getting when creating a new vm. do you know what can be done?
Yeah, that is bridged networking and is required for samba shares and accessing them from other PC's in the network. I'll do a separate video going of bridged networking.
@@ChrisTitusTech Hello Chris I watch all your video's to help setting up my stuff. I downloaded the kvm and qemu and set it up just like you showed but I haven't downloaded the windows 10 on it as yet. But I have downloaded a few Linux distros I need your help on how to install the linux spice guest tools for the distros
Move existing Windows 7 to virt manager virt-p2v, copy physical pc to linux server over ssh connection Start by watching this: youtube video "2DrHDtdpmcQ" On Debian 10: see: libguestfs org sudo apt-get install libguestfs-tools First make a link: sudo ln -s /usr/share/ /share Make p2v usb key with linux libguestfs for moving physical pc to linux server: Usb 16gb fat32 format: sudo virt-p2v-make-disk -o /dev/sda Or iso file: sudo virt-p2v-make-disk -o /home/boot.iso - sorry youtube comments socks can't write links.
Unusable. Something about permissions denied for a disk image I just created. This program doesn't make any sense. What's wrong with just choosing an ISO, running it and making it write to a disk image? Why do I have to make volumes and fiddle around with file permission?
Hello Chris! Very nice video I want to create a qcow2 qemu image to run in on PNETLab. Would this work for me or do I need to create it differently? So basically I have a Windows 10 lite version and I have everything setup as usual so I tried making my own qcow file out of this installation but I get no boot device error :(
@@roguegenesis7020 a modded ISO (I used ghost Spectre) ik we shouldn't use ISOs modded by someone else but I wanted a quick option just for testing not as daily driver or anything. I already figured it out tho 😆 It was just a matter of time to learn how to use KVM, I had forgotten about this comment. Now what I'm trying to do is making my own lite version out of an official ISO or Windows installation
Uh-huh, it can happen if you're using UEFI vs. MBR/BIOS (right?!??) and I don't use QEMU (so, not a clue!..:)); but, like I've answered another comment, there's the Oracle VM VirtualBox that's a breeze to use: www.oracle.com/virtualization/technologies/vm/downloads/virtualbox-downloads.html (OR, you know, you just need another /different Windows 10 ISO) && come to think of it, if you've installed it and it just doesn't boot, have you enabled HARDWARE VIRTUALIZATION in your computer BIOS - because, that's a thing. :))
Hey. Thanks for the Video. I habe a big problem: All the time I start win10, it runs but after a few minutes working on it, the complete VM gets stucked and I have to force shutdown. It's super annoying. I am using Manjaro KDE Plasma
Hello Chris, I always wonder how to I keep windows licenses on a virtual machine, do I keep the windows license on this machine if I need to reinstall it as long I keep the same virtual HDD?
I did everything you said up until 10:12. I did not have the "Channel spice" there automatically - so i added it, then continued with your tutorial by adding WebDAV. I shut it down and it added it - so far so good. Then I tried to use virt-viewer with your terminal command - this is where I am stuck: "Failed to connect: No running virtual machine found". but it is actually running... I have no idea how to fix this
I have not enough space on my Fedora HD. I can't figure out how to run virt-manager from a second HD like I do with VirtualBox (that keeps on breaking after Kernel updates)..
Virtualization means tight integration with the kernel. KVM is part of the kernel, so on the day of the kernel release it has been tested. Oracle has to test Virtualbox against each kernel and as user of Virtualbox you will have to wait to upgrade the kernel, till a tested supporting Virtualbox release is available. For the last release of Ubuntu 19.10 I had to wait a few days after Ubuntu 19.10- rc1, before I had a Virtualbox release available, that supported Linux 5.3 of Ubuntu 19.10.
Hello, how can you help me? I have a problem with the virt-manager environment, this legend appears every time I run it. I don't know if you can help me solve it? Unable to init server: Could not connect: Conexión rehusada Unable to init server: Could not connect: Conexión rehusada Unable to init server: Could not connect: Conexión rehusada (virt-manager:2215): Gtk-WARNING **: 11:52:06.778: cannot open display:
I currently run OSX Mojave under VMware Workstation and Linux MX 17.1, Linux Mint 19 and Win10 Pro under Virtualbox. All virtualization software runs on my PC under Win 7 Ultimate... :-)
Thank you very much for the video on this topic. I know absolutely nothing about virtualization. I just learned of KVM about an hour ago. I can't afford to buy VMware. I do not need to do virtualization. But it seems like a better way to test distros than my current method, which is to buy a $ 20 SSD and load a distro on it. So what distro makes the best host ? Tumbleweed is fine with me ? But wouldn't something more stable be better ? Leap or Debian ? I want to build a new computer using Linux as a the host ? Should I go with Threadripper for the CPU ? Any other hardware recommendations you can offer ?
Can do a video with a gpu headless if someone only has a laptop? Someone on TH-cam showed his laptop running looking-glass on a single screen playing RE2 remake? Is it possible?
Could you do a macOS qemu tutorial. I’ve read the pass through post website but seeing it from a actual person doing a tutorial versus just reading it would be a lot better;)
Yes! I need some clearer instructions for if I can't use a usb controller card (since I'm using a nuc) and get maximum performance so I don't have to go back to tonymac. I have a rx570 sitting on a r43sg nvme to pcie adapter so pass through for my system would be really really nice.
Yes, but this means the Nvidia card CAN NOT be shared with Linux. You must blacklist it in the kernel and then pass the card to the VM on launch. Its not a trivial thing to do, but it can be done.
You need to install Virtual Machine Manager. It's amazing how many additional steps are left hanging without explanation out there. It's also an apt-get package. virt-manager.org/
There was a prior video, that I'm now just finding, because it seemed to me like he was skipping some steps. haha th-cam.com/video/ozYKkaVK0_A/w-d-xo.html
I prefer VMWare any day. Virt Manager is too complicated. Too many things to install and do. And there's also this highlighting bug that really annoys me, making it almost useless. When you click the mouse within the virtual machine, it highlights the machine and you cannot move the mouse outside it. If that bug wasn't there, it'd probably be a good program.
Is it possible to run windows games inside qemu without installing and using Windows? Just avoid whole Windows 7/10 interface and see only the running game? But at the same screen? Using the whole OS without using interface and without installing. Just mounting already installed OS(or OS necessary components only to run the game) every single time only for gaming purpose, but not using the whole interface at all? Just like using shadow OS. Everything will be executed from Linux level not even touch physically Windows OS. No running of KVM, No booting, no clicking app to run, no desktop just run the game from shortcut from Linux level or by calling it from console, without any prompt to accept, any unnecessary windows opened? That would be nice.
Snack3rS7 just a little thing: you have to use your linux programs also in a vm and changing the DE is a bit difficult, but if you‘re ok with that, go for it
Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: www.debian.org/security/
You do realize that Windows 10 spies on you. Msft knows everything that is on your computer. Therefore, the choice to use ONLY linux is a no-brainer. Just say NO to Msft.
Problem: I can run qemu or aqemu under Debian testing fine, mouse works. But as soon I start a game like chromium-bsu or etlegacy, the mouse becomes hyper sensitive, means extreme accelerated on every move, hence makes it unusable. In Virtualbox I have the same problem, but it is fixable with disabling Mouse Integration in the VM gui of Virtualbox. How to fix this in qemu? Here is my command: "qemu-system-x86_64 -m 3G -smp 2 -soundhw hda -drive if=virtio,format=raw,aio=threads,file=Debian11.img -enable-kvm -machine type=pc,accel=kvm -cpu host -vga qxl -k de -boot once=c,menu=off -nic user,model=virtio-net-pci -usb -device usb-tablet" Spice, qemu, virt-goodies, libvirt all are installed in host as well as in guest. Any ideas?
Just to clarify, right, for those who may be new: there we have selected the number of CPUs to be "2" (seems to be default), or: "Model: core2duo" in that "Configuration" drop-down menu, right below the CPUs "Current allocation" and "Maximum allocation" settings - from the available "Logical host CPUs: 16" - and that's how it will be emulating our virtual machine - as though we've got two CPUs, or cores (and you can set the numbers higher, but we're not playing Crysis on it, hehe). :)
I can't belive the improvement, before this tweaks my VM was running worse than virtualbox, now Im running a win 10 faster than the one on my girlfriend laptop.
Just btw., the Oracle VM VirtualBox _is_ perhaps a little bit simpler to use (and certainly another viable option, for emulation), here's the download page: www.oracle.com/virtualization/technologies/vm/downloads/virtualbox-downloads.html EDIT: Oic., other comments are talking about this being some kind of a common-issue with QEMU, btw. That sucks, meh. :)
Hey! Thanks for the video... quick question... My version of virt-manager doesn't have the ligthbulb so I could change the config... what did I did wrong? I'm using ubuntu 19
Lucas this usually deals with group ownership. Try the following commands: (fill in your username) $ sudo adduser username libvirt $ sudo adduser username libvirt-qemu
@@ChrisTitusTech Hey... Thanks for the tip. the second command added my user to the libvirt-qemu, but nothing changed....the first one already had my username in its list. Should I unnistall my virt-manager? If doing so, would I loose my win10 kvm?
Bridged networking is so that you get a real IP address on the machine so you can remote in, etc..
*which is absolutely unnecessary for a single-machine instance, btw. && 100% you won't use it, if you don't know what it is; for example, it's also present in Oracle VM VirtualBox setup options and these are components you can skip from installing!.. not only to save space, but they won't add to your Network Adapters in Windows @Control Panel\Network and Internet\Network Connections (and make a confusing mess. :))
@@ностромов i mean i have done that and now it is always visible virtualbox ethernet adapter
@@ностромов You can always remove network interfaces via the "sudo ip link delete" command or have your Network Manager software remove it and NAT isn't always practical, Bridged connections are 100% necessary for security and functionality. Try setting up your own VPS cloud solution and tell me that NAT is practical, NAT config for 10 VMs and I bet there will be all sorts of conflicts.
In case you need to setup bridge, run these 3 commands:
nmcli connection add type bridge ifname virbr0 stp no
nmcli connection add type bridge-slave ifname enp88s0 master virbr0
nmcli connection up bridge-virbr0
And change the enp88s0 and virbr0 accordingly.
nice comment! can you explain it a bit more?
This will even manage Gnome-boxes created VMs. Between the two, Linux gets most of the features of VirtualBox. Once you have your machine configured, Boxes will run it.
Interesting; good to know.
need to see the bridged mode in virt-manager, waiting for this video, please.
th-cam.com/video/rI-7rgfB5iI/w-d-xo.html
It's pretty straight-forward.
Very nice!! I'd like to see how to import a "physical" windows install to KVM/QEMU VM.
its easy to do actually just clone the hard drive of windows to other hard drive then just actually you can just boot to it
You will need to install Windows virtio drivers from Fedora and setup VM to use virtio for better io performance.
docs.fedoraproject.org/en-US/quick-docs/creating-windows-virtual-machines-using-virtio-drivers/
here's a way to change it from IDE to VirtIO after the OS is already installed: setdosa.blogspot.com/2013/09/moving-your-windows-guest-from-ide-to.html
@@LegoOfMe Your host OS must be Linux for virtio to work. Since you are on windows 8.1 vm on qemu windows host, install spice-guest-tools for drivers. www.spice-space.org/download.html
Dear Chris, could you explain why 3D acceleration was not used for better graphics?
Hi Titus is there a way to edit the machine definition? i mean is there a file that represents the machine you just created in the video?
I'm running virt-manager on Ubuntu 20.04 and when I attempted to launch Win 8.1, I had the no bootable device error as well 03:26. I'm attempting to go back over your video to see exactly what it was that you did to remediate.
NIce! checkmate 83 hour problem >> kiloTanx^2
Thank you very much,Chris!Very informative video!Could you record a video with installing and using Qemu on Windows 10?
Sergey Khablov why on windows?
bettafish he has windows and so do I
Bruh it is not on windows. Some things are linux specific
Love Your video, but how can i make alias for this? Do You have the link for the tutorial's video? Thanks.
"No bootable device"....
My iso (windows 7 only) works with virtualbox, but not with virt-manager. Any help plz ?
What's the difference between QEMU, Gnome Box, VirtualBox, VMware?
There are too many options that make me so confused.
QEMU & KVM are free and open source virtualization programs that are only available on Linux and FreeBSD. You don't necessarily need to understand the difference between QEMU & KVM to use them. There are many UI's for it. GnomeBoxes is one of them witch aims to be simple. Virtmanager is another. You would not even necessarily need a GUI to run VMs. But you probably want one. If you're running Linux that's also probably what you wanna use. Because it's really god damn good and free!
VmWare is great as well. Made by.. well VmWare. It mostly costs money and KVM while being free can actually stand it's ground against it. But VmWare is used a lot in big organisations. Especially on Servers. But they could also use something like ovirt on their servers. Then they would be using KVM. That does not necessarily mean it's free for them either. They mostly will willingly pay for support, Red Hat Enterprise Linux and so forth.
VirtualBox is a virtualization software mostly only used on Windows (because there is no KVM on Windows). It gets beat by both of the above in performance and features. But it's easy to use and works fine on Windows. Works on Linux too. But for why would you use it when you have better free options available to you. And from my experience it can break pretty easiely compared to KVM by linux kernel updates.
@@shioli3927 My experience is completely different. Virtualbox is by far preferable, it is somewhat slower with respect to disk IO, but not very much. It will allow you to activate Windows, if you install the VM on the original PC with the sticker. In this way I moved e.g. my Windows XP VM, installed in 2011 on a Pentium 4 Host to Phenom II Host and again to a Ryzen Host. To compensate for the somewhat slower disk IO, I run Virtualbox on top of ZFS, which means that my VMs run almost completely from the ZFS memory cache, resulting in instantaneous response times. I can play many Linux games, like Extreme Tux Racer in Virtualbox using its 3D acceleration. Currently I run my VMs from a NVME SSD and the Linux VMs boot in ~10 seconds, like my Host OS. I use Virtualbox now for 10 years and I never had any problem with update and release upgrades on Ubuntu. Virtualbox has been all those years extremely reliable, only since 6.0.14 in the last 3 month. I had some problems with 3D acceleration for Ubuntu (Gnome) VMs, but if I switch it off, everything works fine.
For me QEMU/KVM is an unfinished project for the desktop, lacking any sophistication and some options will not work. A major problem is the lack of driver compatibility with older Windows OSes. It has been clearly optimized for running on servers. I almost never can select the correct CPU using QEMU/KVM, for a Phenom II CPU, I always ended up with an Opteron Server CPU and the CPU count of the CPU selected is often wrong. Virtualbox selects the CPU of the Hosts system and allows you to change e.g. the CPU count assigned to the VM. If I want to have an activated Windows on QEMU/KVM, I move that Windows Virtualbox file from Virtualbox to QEMU/KVM. 3D acceleration of the KVM display never worked for me,
VMware is reliable also, but the free version only allows you to start ONE VM, but you can circumvent it by starting VMware more times and run another VM from that seconds VMware instance.
@@bertnijhof5413 Maybe, my experience was a different one that yours. Since, I use Fedora on my Desktop they update the kernel all the time and it broke rather quickly after I had installed it (it worked again when selecting an older kernel). Most things don't really break with kernel updates so that sure was awkward. I can't tell you anymore what version it was. I have no idea it was a long time ago. It might have been a one time sample size thing. Either way I did not have such issues with KVM. Since then I used KVM on the desktop and now I actually use nothing on the desktop (mostly). Proxmox on a Server as I'm not about to play games in VMs (maybe would with a Windows VM, but then I would need a second physical GPU for passthrew or the performance would not really be what I want it to be for games). But for other things it is much more convinient for me to use proxmox now as I can use the same VM on multiple PCs with multiple OS's seemlessly. I used to use ovirt, just because I have used a lot of redhat stuff. But it's a hassle to get up and running on a single Server setup. Proxmox in comparison is really simple, easy to setup and maintain so far. It's based on debian, also uses kvm.
Being only able to select "Server CPUs" is really not a big deal. They are pretty much the same damn thing anyways, just lower clock (witch does not apply for the VM it just runs on whatever clock your host CPU runs on), potentially more cores, often times no iGPU etc, sometimes they have more features than the desktop one, like being able to use ECC ram and sometimes other extra stuff. There was a time people bought server CPUs for gaming, because they where cheaper than the desktop equivalent (just without an iGPU). So there is that. Either way, CPU performance is mostly almost equivilant to running bare medal now. It's just graphics card performance that kinda s*cks since they don't really support virtualization the way modern CPUs do. So... you can passthrew an entier one, but otherwise you WILL get far worse performance in your VMs for anything that needs a GPU. With a Windows VM on Linux when you have a spare GPU that you can completely give up to your VM you can get almost equivalent performance to running Windows on bare metal in every game. Most people I have seen doing that are doing that with KVM. I'm not aware of anyone doing that with virtualbox. It may be possible. Checking the "3D Acceleration" box in virtual box isn't doing that. You get like Intel integrated graphics performance, even if you have a 2080ti. If you passthrew the entier 2080ti you get 2080ti performance with your 2080ti, but your host can no longer use the graphics card.
@@shioli3927 What is awkward, that you tried to use Virtualbox with kernels that had not been tested with that Vbox release! Of course it will almost always break! Virtualbox and KVM are tightly integrated with the kernels. Of course KVM is part of the kernel, so no problem. It will have been tested as part of that kernel release. However Vbox is not part of the kernel and with each kernel release Oracle has to retest, adapt it and if needed release a new point version of Vbox for that Linux kernel.
Of course the performance of 3D acceleration has nothing to do with any integrated graphics, but everything with the overhead created by the interface between Vbox and the home OS Nvidia/AMD drivers. So using 3D graphics you will be punished by a certain percentage degradation of performance. I don't know how much, but I might check it some day. Anyhow I still could play some standard Linux games using 3D acceleration and without it has been unworkable. I'm not a gamer, so I will never buy a second video card, despite that there is support for pass through of PCI and PCIe cards in Virtualbox.
Those differences of CPU is important in two cases. The selected QEMU CPU (Opteron or Phenom) will have a slightly different set of instructions compared to my Phenom II CPU, so performance will be sub-optimal. The only good solution is to default for the VM to the Host CPU. The second issue is that you can't activate Windows using another CPU. On my off-lease computers I activated the Win Vista VM and the Win 7 VM on the original PC and later I moved it to my newer desktop and kept Windows up to date till it reached end-of life. That ECC RAM of a server is of course completely useless in a VM.
I installed Proxmox some time ago in Vbox and it looked interesting. I abandoned it, because Virtualbox did not support nested VMs at that time, so a real test was impossible without completely changing my desktop. Now Virtualbox supports nested virtualization and I could simulate a possible future setup of Proxmox and its clients in Virtualbox. Proxmox also supports ZFS like Ubuntu, so another reason to have another look at Proxmox.
You have type 1 and type 2 hypervisors qemu kvm is type 1 same as hyper v in windows
Can the GPU memory be upped from 16mib
is really gemu kvm faster than vmware and virtualbox for linux hosts?
great video thanks man !!
can you help me load my nvnvme drive with windows on it into Virt-manager
I followed all the way through, confirmed the connection, but I cannot get the shared drive to shown in my vm Computer no matter how long I wait. I have gone into services and there is a SPICE VDagent running. I restarted it and still nothing happened. I am running Manjaro.
Ugh, Manjaro is Arch - and that's one of the "more difficult" distros... Maybe not the best choice to begin with? ;D:D
This runs virtual machines way better than Virtualbox!
Hi Chris great video. How best to setup QEMU, virt-manager,KVM with GPU passthrough? Thanks
I was scrolling comments waiting for the first person to ask this one, the beast is out of the box. It is a painful process, but once you get it down and working you can say good bye to Billy Gates NT kernel for good and in all irony it is FREE with Qemu, ALL options I know of charge or a trial software that have GPU passthrough in the mix for a virtual machine.
when im creating a vm it complains that it doest have search permissions when i try to add custom storage location for the vm. i cannot use the default location since windows takes so much space in that drive
can we use virt-install, can't find any tutorial about that, the tutorial install with no graphics support.
How to make the network bridge connection?
Great video. But what if I wanted to script and automate the process rather than doing it in the virt manager gui.
unable to complete install: cannot access storage file '/media/mike/savehere/machine/ubuntu.qcow2
that's the error i'm getting when creating a new vm. do you know what can be done?
everything works pretty well but I can't seem to be able to connect to my vms from another computer using virt-viewer could you do a video about that?
Yeah, that is bridged networking and is required for samba shares and accessing them from other PC's in the network. I'll do a separate video going of bridged networking.
@@ChrisTitusTech Hello Chris I watch all your video's to help setting up my stuff. I downloaded the kvm and qemu and set it up just like you showed but I haven't downloaded the windows 10 on it as yet. But I have downloaded a few Linux distros I need your help on how to install the linux spice guest tools for the distros
@@ChrisTitusTech i need that video, on virtualbox is easy but virtual manager i don't get it
From the Files (Ubuntu) just drag file(s) or folder in virtual machine, whenever you want (Desktop, File explorer,...). Drag and drop.
Move existing Windows 7 to virt manager
virt-p2v, copy physical pc to linux server over ssh connection
Start by watching this: youtube video "2DrHDtdpmcQ"
On Debian 10:
see: libguestfs org
sudo apt-get install libguestfs-tools
First make a link:
sudo ln -s /usr/share/ /share
Make p2v usb key with linux libguestfs for moving physical pc to linux server:
Usb 16gb fat32 format:
sudo virt-p2v-make-disk -o /dev/sda
Or iso file:
sudo virt-p2v-make-disk -o /home/boot.iso
-
sorry youtube comments socks can't write links.
Unusable. Something about permissions denied for a disk image I just created. This program doesn't make any sense. What's wrong with just choosing an ISO, running it and making it write to a disk image? Why do I have to make volumes and fiddle around with file permission?
Thank you!
Hello Chris! Very nice video I want to create a qcow2 qemu image to run in on PNETLab. Would this work for me or do I need to create it differently? So basically I have a Windows 10 lite version and I have everything setup as usual so I tried making my own qcow file out of this installation but I get no boot device error :(
What's windows 10 lite?
@@roguegenesis7020 a modded ISO (I used ghost Spectre) ik we shouldn't use ISOs modded by someone else but I wanted a quick option just for testing not as daily driver or anything.
I already figured it out tho 😆
It was just a matter of time to learn how to use KVM, I had forgotten about this comment.
Now what I'm trying to do is making my own lite version out of an official ISO or Windows installation
Can you update the content of the video because of a lot of updates on the systems. Thanks Chris
What servies should I check if it doesn't pop up?
Windows doesn't boot I tried Linux distros and they all work I can't get windows to work
Uh-huh, it can happen if you're using UEFI vs. MBR/BIOS (right?!??) and I don't use QEMU (so, not a clue!..:)); but, like I've answered another comment, there's the Oracle VM VirtualBox that's a breeze to use: www.oracle.com/virtualization/technologies/vm/downloads/virtualbox-downloads.html (OR, you know, you just need another /different Windows 10 ISO) && come to think of it, if you've installed it and it just doesn't boot, have you enabled HARDWARE VIRTUALIZATION in your computer BIOS - because, that's a thing. :))
linda voz querido! parabéns!
02:27 Ok so it seems that the boot order/configuration has to be checked. I'll try that
Hey. Thanks for the Video. I habe a big problem: All the time I start win10, it runs but after a few minutes working on it, the complete VM gets stucked and I have to force shutdown. It's super annoying. I am using Manjaro KDE Plasma
the shared folder never poped up...
mine is just sitting at the start up thing that looks like a terminal
Hello, is there any other way, besides this and Samba, to share a folder from linux host to windows guest? thanks!
Hello Chris, I always wonder how to I keep windows licenses on a virtual machine, do I keep the windows license on this machine if I need to reinstall it as long I keep the same virtual HDD?
I did everything you said up until 10:12. I did not have the "Channel spice" there automatically - so i added it, then continued with your tutorial by adding WebDAV. I shut it down and it added it - so far so good. Then I tried to use virt-viewer with your terminal command - this is where I am stuck: "Failed to connect: No running virtual machine found". but it is actually running... I have no idea how to fix this
Does anyone get the pausing issue when trying to start the vm?
I have not enough space on my Fedora HD. I can't figure out how to run virt-manager from a second HD like I do with VirtualBox (that keeps on breaking after Kernel updates)..
Virtualization means tight integration with the kernel. KVM is part of the kernel, so on the day of the kernel release it has been tested. Oracle has to test Virtualbox against each kernel and as user of Virtualbox you will have to wait to upgrade the kernel, till a tested supporting Virtualbox release is available. For the last release of Ubuntu 19.10 I had to wait a few days after Ubuntu 19.10- rc1, before I had a Virtualbox release available, that supported Linux 5.3 of Ubuntu 19.10.
Hello, how can you help me? I have a problem with the virt-manager environment, this legend appears every time I run it. I don't know if you can help me solve it?
Unable to init server: Could not connect: Conexión rehusada
Unable to init server: Could not connect: Conexión rehusada
Unable to init server: Could not connect: Conexión rehusada
(virt-manager:2215): Gtk-WARNING **: 11:52:06.778: cannot open display:
what distribution is this ?
I currently run OSX Mojave under VMware Workstation and Linux MX 17.1, Linux Mint 19 and Win10 Pro under Virtualbox. All virtualization software runs on my PC under Win 7 Ultimate... :-)
how to install virt-manager?
Thank you very much for the video on this topic. I know absolutely nothing about virtualization. I just learned of KVM about an hour ago. I can't afford to buy VMware. I do not need to do virtualization. But it seems like a better way to test distros than my current method, which is to buy a $ 20 SSD and load a distro on it. So what distro makes the best host ? Tumbleweed is fine with me ? But wouldn't something more stable be better ? Leap or Debian ? I want to build a new computer using Linux as a the host ? Should I go with Threadripper for the CPU ? Any other hardware recommendations you can offer ?
Virtualbox is free
@@Aiden-vj2tg VMWare is too, till an extent.
How many virtual machines can I run with KVM at the same time? Of course with a corresponding powerful PC. Is there a maximum limit?
You are only limited by system resources
Can do a video with a gpu headless if someone only has a laptop? Someone on TH-cam showed his laptop running looking-glass on a single screen playing RE2 remake? Is it possible?
Could you do a macOS qemu tutorial. I’ve read the pass through post website but seeing it from a actual person doing a tutorial versus just reading it would be a lot better;)
Yes! I need some clearer instructions for if I can't use a usb controller card (since I'm using a nuc) and get maximum performance so I don't have to go back to tonymac. I have a rx570 sitting on a r43sg nvme to pcie adapter so pass through for my system would be really really nice.
Can I make my own Linux distro.
Anyone can, however you probably should just do arch and pick each package you want to use from sound / display / networking.
you can try AnarchyLinux (arch-everywhere) to build your own arch based distro
excellent
Can I run a virtual system inside it and make it work on an NVIDIA card only?
I did not find anything about it!
Yes, but this means the Nvidia card CAN NOT be shared with Linux. You must blacklist it in the kernel and then pass the card to the VM on launch. Its not a trivial thing to do, but it can be done.
Damn windows performance is terrible for me. I see under qxl that there's a ram setting. I don't have that.
how do i install qemu? i have via software manager but i can't find it after installation
You need to install Virtual Machine Manager. It's amazing how many additional steps are left hanging without explanation out there. It's also an apt-get package. virt-manager.org/
There was a prior video, that I'm now just finding, because it seemed to me like he was skipping some steps. haha th-cam.com/video/ozYKkaVK0_A/w-d-xo.html
I prefer VMWare any day. Virt Manager is too complicated. Too many things to install and do. And there's also this highlighting bug that really annoys me, making it almost useless.
When you click the mouse within the virtual machine, it highlights the machine and you cannot move the mouse outside it. If that bug wasn't there, it'd probably be a good program.
02:39 no bootable device
will it be faster than gnomeboxes ? and how to change vm directory of gnomeboxes
It is actually how you make a gaming vm. Yes, gaming vm is made with qemu. So it would be definitely fastee
@@alkaupadhyay7650 yes try qemu now it definitely is consuming less ram
@@alkaupadhyay7650 yep kvm is certainly faster
Is it possible to run windows games inside qemu without installing and using Windows? Just avoid whole Windows 7/10 interface and see only the running game? But at the same screen? Using the whole OS without using interface and without installing. Just mounting already installed OS(or OS necessary components only to run the game) every single time only for gaming purpose, but not using the whole interface at all? Just like using shadow OS. Everything will be executed from Linux level not even touch physically Windows OS. No running of KVM, No booting, no clicking app to run, no desktop just run the game from shortcut from Linux level or by calling it from console, without any prompt to accept, any unnecessary windows opened? That would be nice.
Snack3rS7 yeah i think that would be nice too, there actually is qubes os, it only supports it on a win 7 vm but it works
wine has also gotten better
@@froge8121 This isnt solution i am talking about.
Snack3rS7 why?
qubes os handles launching windows 7 applications like opening a new window
you dont see the interface at all
@@froge8121Maybe I should try.
Snack3rS7 just a little thing:
you have to use your linux programs also in a vm and changing the DE is a bit difficult, but if you‘re ok with that, go for it
google pixel 7 with kvm accepts windows 11.
"Core Du 2uo" @ 9:15 XDXXDXDXDXDXDXDDSXDXDXDX JAJAJAJJAJAJAAJAJ
Anyone else getting ip address: unknown?
All nice. But I get permission alerts all the time with this setup! Avoid it!
NO BOOTABLE DEVICE
:( Why this is in my results under Terraform topic... :)
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: www.debian.org/security/
Warum ist der Titel deutsch du Lachs.
Your tutorials are as always unhelpful
face too close
You do realize that Windows 10 spies on you. Msft knows everything that is on your computer. Therefore, the choice to use ONLY linux is a no-brainer. Just say NO to Msft.
There are a few apps that are only well-supported under proprietary OSs. Such as Adobe PhotoShop.
I believe you, but I would like you to tell me more. Please
i have the same desktop wallpaper))
Problem: I can run qemu or aqemu under Debian testing fine, mouse works. But as soon I start a game like chromium-bsu or etlegacy, the mouse becomes hyper sensitive, means extreme accelerated on every move, hence makes it unusable. In Virtualbox I have the same problem, but it is fixable with disabling Mouse Integration in the VM gui of Virtualbox. How to fix this in qemu? Here is my command:
"qemu-system-x86_64 -m 3G -smp 2 -soundhw hda -drive if=virtio,format=raw,aio=threads,file=Debian11.img -enable-kvm -machine type=pc,accel=kvm -cpu host -vga qxl -k de -boot once=c,menu=off -nic user,model=virtio-net-pci -usb -device usb-tablet"
Spice, qemu, virt-goodies, libvirt all are installed in host as well as in guest. Any ideas?
I like your videos but I have one gripe. Could you put your camera at eye level?
9:12 I love me some of that CoreDew2o. lol.
Just to clarify, right, for those who may be new: there we have selected the number of CPUs to be "2" (seems to be default), or: "Model: core2duo" in that "Configuration" drop-down menu, right below the CPUs "Current allocation" and "Maximum allocation" settings - from the available "Logical host CPUs: 16" - and that's how it will be emulating our virtual machine - as though we've got two CPUs, or cores (and you can set the numbers higher, but we're not playing Crysis on it, hehe). :)
I think Microsoft are getting rid of webdav or something I read recently? That might mean the Samba share is the only way in the future.
I have an i5-4460 (can get I5-4790K if needed) with 16Gb ram. Can I run 1 or 2 virtual machines on ubuntu? Would KVM be a viable option? Thanks
bruh i have i3 and 4gb of ram and im runnning a virtual machine on that so it must be easy for you
@@anasal-muslim_alkurdi I've since upgraded to a ryzen 5 3600 and 16gb ram but haven't tried vm's yet
@@MichaelAMalone try it then (but dotn forget to turn the virtualization technology on in the bios)
what does mean 'shareable' option on disk and cdrom ?
umm bring back filming room
I can't belive the improvement, before this tweaks my VM was running worse than virtualbox, now Im running a win 10 faster than the one on my girlfriend laptop.
9:13 “Core Du Two-Oh”. 🤣
As soon as I boot into the virtual machine my usb devices disconnect
Just btw., the Oracle VM VirtualBox _is_ perhaps a little bit simpler to use (and certainly another viable option, for emulation), here's the download page: www.oracle.com/virtualization/technologies/vm/downloads/virtualbox-downloads.html
EDIT: Oic., other comments are talking about this being some kind of a common-issue with QEMU, btw. That sucks, meh. :)
Hey! Thanks for the video... quick question...
My version of virt-manager doesn't have the ligthbulb so I could change the config... what did I did wrong? I'm using ubuntu 19
Lucas this usually deals with group ownership. Try the following commands: (fill in your username)
$ sudo adduser username libvirt
$ sudo adduser username libvirt-qemu
@@ChrisTitusTech Hey... Thanks for the tip.
the second command added my user to the libvirt-qemu, but nothing changed....the first one already had my username in its list.
Should I unnistall my virt-manager? If doing so, would I loose my win10 kvm?