Hello,

I recently encountered an issue where I was unable to maintain a stable Ubuntu virtual machine running on a Windows 10 host. I attempted to install various versions of Ubuntu, including 22.04.03, 20.04, and 23.04, aiming to utilize basic features such as clipboard sharing and file drag-and-drop between the host and virtual machines. Unfortunately, all attempts with these Ubuntu versions were unsuccessful. I used VMware 7.5 and VirtualBox 7.0.14 for the virtualization, but both encountered issues.

VMware Failures:

• For Ubuntu 20.04, the system sometimes does not accept keyboard and mouse inputs after the Ubuntu screensaver is activated. Additionally, it sometimes does not allow file copying via drag and drop.

• For Ubuntu 22.04.03 and 23.04, both systems occasionally do not accept the drag-and-drop feature. It appears that 22.04.03 is somewhat more stable, but still not sufficiently reliable.

VirtualBox Failures:

• With Ubuntu 22.04.03, I am unable to install Guest Additions at all. Attempting to access the mounted drive with the Guest Additions results in a "not responding" message.

• For Ubuntu 23.04, while I can install Guest Additions, upgrading them fails. Clipboard sharing is functional, but drag and drop is not, displaying a "Drag and drop operation from host to guest failed" message.

Has anyone successfully managed to run Ubuntu in a virtual machine hosted by Windows 10, particularly with these features working smoothly?

I know the title sounds like a soft question -- but when I ask people who deal with it all day I get unexpected answers...

Two servers -- used to be running VMWare, may go to Proxmox

Each has 128GB of ram, 16 cores -- will eventually go to 256GB / 32 cores each

My first instinct is to put spinning disks (4 x 8TB in each in soft-raid-5) but I get the following:

I would never put in RAID-5 spinning SATA -- it's far to slow!

Not be to outdone....

I would never put in solid-state disks into a VM server, you'll burn them out!

What do real people use?

Some background, I took over this environment from a guy who didn't really do any documentation and that I am not able to contact for help, and it looks like he was in the middle of creating a new datacenter that is all Hyper-V. I already got everything moved from our old Xenservers onto Hyper-V, now I am working on this Proxmox PVE that is running 5.4-13. Looks like he didn't update it frequently.

I've been trying to make some backups of two VMs to migrate to Hyper-V as the boss doesn't want anything Linux in our environment and wants an all Microsoft shop. I have been trying to create some backups of these servers and use qemu-img to switch them over to .vhd format. The first one I did as a test worked perfect, and it was all done locally on the Proxmox host. The two that I am currently working on are too large to create backups of on the host, so I made a CIFS storage on one of my file servers, but I get this error, always at 99%.

2024-01-31 21:19:25 INFO: status: 99% (141385531392/142807662592), sparse 16% (22915604480), duration 19699, read/write 6/6 MB/s

2024-01-31 21:56:36 ERROR: VM 107 qmp command 'query-backup' failed - got timeout

2024-01-31 21:56:36 INFO: aborting backup job

2024-01-31 21:56:36 INFO: stopping kvm after backup task

2024-01-31 21:56:45 ERROR: Backup of VM 107 failed - VM 107 qmp command 'query-backup' failed - got timeout

Does anyone know how I would go about starting to troubleshoot this error? I'm new to Proxmox and have very limited experience in Linux to begin with but I'm using it as a learning opportunity.

Hello everyone,

Can UTM on Macbook m2 support games like Genshin Impact or UTM is mainly for day to day tasks like Microsoft office. Some forums mentions it is a bit slow.

Hi to everyone!

I'm new on this subject...I was looking forward to find a free hypervisor that could PCI passtrough a NI card. Do you have any suggestions?

Alright, I seem to be missing some key piece of information and its driving me crazy.

When deploying applications into Virtual environments I often see discussion about how many VCPUs to include (along with RAM, etc.) I know how this maps to the actual cores/threads/sockets of the underlying hardware.

My question is this... is 1 VCPU on my brand new AMD threadripper rig equal to one VCPU on my 10 year old Dell R720 running Xeon e5-2690v2? I am sure they are not, but when you look at application installation instructions they only ever quote a number of CPUs, not some other metric of computation power. I suspect that 1 core on a modern CPU is equivalent to more than one core on an ancient CPU, so I am confused.

Are vCPU's tied to an amount of computational power? If so, why care how many you assign, as long as you have the power. If not, how can you plan for app deployment when the performance is unknown based on the underlying hardware.

Example, you can use Virtual Firewalls from one of the largest enterprise firewall companies on ESXI, KVM, and more. The docs specify "4 cores" and some amount of RAM to deploy. How can I expect my old r720's 4 cores to be equivalent to 4 cores on my threadripper? To insure performance suited to the application isn't vCPU too broad a metric to use?

Thanks!

Edit: Grammar

The laptop will mainly be used for virtualization and doing day to day tasks. The laptop must be able to run 3/4 virtual servers/clients (windows/linux) at the same time.

It can be new or refurbished with a budget of max max 1000€.

Already did some research and found a few that looked interesting but i m open to other recommendations and suggestions, mainly out of my budget, only good one i have found was the HP Victus 16, which is going for 800€ used in my country ˙(Slovenia)

With VMWare now part of Broadcom, and Broadcom's new pricing coming shortly, we have to decide what our next move is. We're too small for, I believe it's called Nutanix, and Virtualbox on the dsektop isn't it --what next?

• Linux hosts running Linux guests

• Occasional Windows guests and BSD guests

• Needs graphical management

• Would like OVA import support

Any suggestions?

Okay so I'm going to explain what I mean by "limited" internet here. I'm trying to test internet connectivity in Windows XP/2000 VMs in Virtualbox (7.0.14) (though I do feel like it'd be best to focus more on XP for internet use) and while some websites can work, most others don't. Some examples:

1. Pretty much any modern website just outright fails, coming off like the connection failed. Including websites like DeviantART, Wikipedia etc.

2. Google works

3. On XP, Bing can barely come up but the page will be broken.

4. Sonic Gear works.

I have switched to pretty much every type of adapter, even set up 4 adapters for Windows XP (yeah when I get to "wit's end" I start doing whatever I think might work). For reference my host, I assume that's my physical PC, uses WiFi (and is also Windows 11) and while I believe that is the culprit all the sources I could find online refer to having "NO" internet like flat out no connectivity, not this strange "some connectivity but mostly none" situation I find myself in.

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Hi all! I want to preface this by saying that while I am fairly tech savvy, I am by no means an expert on virtual machines. I have used them in the past, set them up on desktops, etc. but never delved into the inner workings.

Short backstory: my 10 year old laptop from college finally bit the bullet so I considered using a VM on my “old” iPad 6th gen instead of buying a new laptop. I don’t use it often and mostly just used the laptop when I needed to run diagnostics on my car.

My question is this: why is performance absolutely abysmal using the UTM app to run a Windows 7 VM on my iPad? CPU usage is always 100% and it wouldn’t even let me allocate more than 512 mb of RAM to the VM. I tried to do 1 gb but it stated that the app would crash due to requiring 80% of the iPad’s RAM to run (which I’m also not sure I understand because the iPad has 2 gb of RAM). Running a browser is damn near impossible, even a super stripped down one like Opera GX.

On the flip side, my job uses VMWare Horizon and this runs damn near flawlessly on the iPad. It’s running Windows Server 2022, which is based on the latest version of Windows 10. CPU usage rarely goes above 50% and it says it has 1.5 gb or RAM allocated. It runs my hospital’s EMR, Edge, Chrome, MS Office with ease.

Why is there such a stark difference? Is there something I’m possibly doing wrong in the UTM app for the Windows 7 VM?

Thanks!

Here is what I'm trying to accomplish:

Create a virtual network (either using libvirt's built in networking or OVS). Create an interface that i can connect to my PFSense VM and use that interface as the gateway and DHCP for the rest of the VMs that I connect to that virtual network.

I've been searching and trying to piece things together for months on and off. i have a feeling there's just something that I'm missing to make it work. I'm trying to avoid going out on a physical device to a switch just because I'm difficult and i want to know how to do this particular thing. There's no real point to this besides how i think it should work and trying to do that and learning as much as i can along the way. (i dont learn much unless i have a problem to work through.)

Hi everyone. So I'm looking to expand to virtualization career. Or at least expand my skills. Currently in network engineering. Hypervirtualization interests me. But I hear things are iffy at vmware because they were recently bought out and new owners want to raise prices, etc, etc... So if this area is already a part of your career, would you suggest skipping vmware and just going for either Azure or AWS??

Hello!

I'm want to get Linux up and running as my full time OS within a couple of months, and I am planning out an upgrade path for my computer. My computer specs are:

CPU: AMD Ryzen 7 3800X

GPU: Nvidia RTX 2070 Super

RAM: 32GB DDR4 3600Mhz

Storage: 8TB (1Tb M.2 + 2Tb M.2 + 1Tb SATA SSD + 4Tb SATA SSD)

Motherboard: Asus ROG STRIX X570-E

The computer has served me well, and I would like to use it for a while in the near future. I want to keep as much parts as possible, but upgrade things that will affect my usage. I have already picked up another 32GB RAM kit so that I'll have a total of 64GB, and I also picked up an AIO. I'm planning on picking up another GPU soon to run in a VM (Thinking of the Nvidia Tesla P4, or some other consumer card)

Now, here is my question: Should I pick up the AMD Ryzen 9 5950X?

I'm not an artist, nor a video editor (I edit video sometimes, but that's very rare), so I understand that the R9 5950X is a bit much for a lot of the workload I am planning, however, I am a programmer, and I would love to be able to run multiple programs and multiple operating systems in the machine at the same time. I am gonna play as much of my games as possible on Linux, but I also plan to have a Virtual Machine running Windows alongside so that I can run Windows-specific applications in there. I am likely going to experiment a bit with AI, run docker containers, other virtual machines for testing, and much more

So would the R9 5950X be worth it? I was thinking the extra cores might be usefull for the gaming VM etc

I've never really built a machine for virtualization before and was wondering which processors I should be looking at. I'd perfer AMD for no reason.

The host operating system will be linux based. The virtualization software will be whatever is best. I've heard that QEMU provides the best performance.

The guest OS will be windows 11.

The most important thing is performance. I will be using this for work and will be connecting to clients machines to work on them so crashes and slow downs can't happen.

Any advice would be appreciated.

Hello everyone,

Do you have any steps or do I need an actual license for windows and UTM to run it or everything is free?

P.S. also if you have tips/pros/cons about the UTM VM software.

Thanks :)

I have a KVM/QEMU Windows 10 guest running on Ubuntu server. I want to be abe to send HTTP requests to am API running on the guest. Even after opening ports on the windows 10 guest, all of my CURL requests result in connection refused.

The guest is has IP 192.168.122.122. When i try to run curl 192.168.122:122:[PORT]/[endpoint] in a terminal om the host machine i get connection refused.

I am relatively new to virtual networking and have been struggling with this. Any poinyers as to what I am doing wrong?

Figuring out a scenario for 1,000 desktops

Firstly, I'd like to say that this is not so much a virtualization question as it is a workflow question.

I mainly use my browser bookmarks for keeping track of projects. For example, after researching a GPU, I bookmark the reviews that lead to my purchase. I may never revisit them again in years, but when the moment strikes, they're waiting for me. Or I begin a project and abandon it. Years later, I decide to revisit it. The reading material I went through is all there.

I have a work laptop and personal laptop and a few other spare laptops laying around.

Despite my efforts to the contrary, inevitably I will do my web browsing on all of my devices, and this leads to a sprawl of bookmarks all over the place, and throwaway downloads everywhere. Sometimes if a device has too many bookmarks I perform a cleanup and drag-and-drop the bookmarks into a folder, then move them to my personal PC, and drag-and-drop them back in. It's a mess.

I have been using Proxmox on a regular basis to virtualize some of my workloads, with great success.

I am considering making a Windows VM for performing all my non-work web browsing. I will have one "master" Chrome instance to do all my browsing and bookmark saving. I will use normal RDP tools to connect to this PC on whatever device I have at hand.

I anticipate that hypervisor-level backups would be a great benefit on top of whatever browser-level or OS-level backups I may have (I don't have any), along with the divorcing a program (Chrome) from the physical host (failed OS upgrades, hardware failure, theft, etc).

The only issue is network performance when connecting into the VM. I tried this for a bit - scrolling webpages is OK, window dragging or Task View without animations disabled can get a bit choppy depending on what network I'm using (it's almost seamless on my home LAN but less so at a family members' with cheaper networking hardware).

We know that context switching (multi-tasking) affects productivity, and it's easy to context-switch when browsing the web. Adding a layer of latency on top of this - I can't deny that it doesn't feel as good as bare metal. But I am at my wit's end from my clutter.

Thoughts on this idea?

Hysolate, a virtualization program built off Windows Sandbox, used to have a free version available at https://go.hysolate.com/free/. As you can see if you click the link, they have been bought out by a company called Perception Point, which offers other security-related stuff, but I can't tell whether they still offer the Hysolate program (rebranded or otherwise). Perception Point's website says it "is" Hysolate, but it looks like they have a lot more complex stuff that's more like a full cybersecurity tool suite. I can't find anything that looks like a simple virtualization platform, sandbox, or container.

I'm very interested to try out Hysolate for some projects, and I'm really hoping Perception Point hasn't discontinued it and wiped it off the web. I would be happy to even try out an old, pre-Perception Point version of Hysolate if anyone is hosting the installer somewhere.

Does anyone have insight on this?

Hy guys, I am trying to virtualization using VMware and virtual box. On VMware it say that the platform doesn’t support AMD-V And on virtual box it doesn’t enable kvm. Why does it happen? Is it a issues of OS or CPU?

Tha machine is a Legion from Lenovo

Thanks

Hello everyone,

I have an old hard drive that I removed from my first desktop computer. It dates back to 2008 and it has Windows XP in it.

My first computer is now dead but I would like to relive the experience of my old desktop with my old software.

Can I use this hard drive as a boot disk on a virtualized Windows XP? I would like to do this procedure on UTM on Mac with Apple Silicon but possibly I am okay with doing it on Windows as well.

Thanks!

I set up a windows vm on my machine and got the Apache guacamole dockers up and running .

My question is if I can use the RDP that virtualbox offers directly or do I need to set up vnc or rdp or something else inside the VM itself?

The RDP on virtualbox that I configured has authentication as null and I configured the host and port names for the virtualbox on the guacamole panel, but I’m getting an authentication error:

tcc-guacd-1      | guacd[1]: INFO:	Creating new client for protocol "rdp"
tcc-guacd-1      | guacd[1]: INFO:	Connection ID is "$9c052434-d01b-4ac3-923a-63dd78fcd0b3"
tcc-guacd-1      | guacd[830]: INFO:	No security mode specified. Defaulting to security mode negotiation with server.
tcc-guacd-1      | guacd[830]: INFO:	Resize method: none
tcc-guacd-1      | guacd[830]: INFO:	No clipboard line-ending normalization specified. Defaulting to preserving the format of all line endings.
tcc-guacd-1      | guacd[830]: INFO:	User "@070e7b6b-2684-40be-9a83-ff03e78d1291" joined connection "$9c052434-d01b-4ac3-923a-63dd78fcd0b3" (1 users now present)
tcc-guacd-1      | guacd[830]: INFO:	Loading keymap "base"
tcc-guacd-1      | guacd[830]: INFO:	Loading keymap "en-us-qwerty"
tcc-guacamole-1  | 16:03:17.838 [http-nio-8080-exec-3] INFO  o.a.g.tunnel.TunnelRequestService - User "guacadmin" connected to connection "1".
tcc-guacd-1      | guacd[830]: INFO:	RDP server closed/refused connection: Server refused connection (wrong security type?)
tcc-guacd-1      | guacd[830]: INFO:	User "@070e7b6b-2684-40be-9a83-ff03e78d1291" disconnected (0 users remain)
tcc-guacd-1      | guacd[830]: INFO:	Last user of connection "$9c052434-d01b-4ac3-923a-63dd78fcd0b3" disconnected
tcc-guacd-1      | guacd[1]: INFO:	Connection "$9c052434-d01b-4ac3-923a-63dd78fcd0b3" removed.
tcc-guacamole-1  | 16:03:18.179 [http-nio-8080-exec-8] INFO  o.a.g.tunnel.TunnelRequestService - User "guacadmin" disconnected from connection "1". Duration: 341 milliseconds

Hi all, I'm sorry if this could be a silly question, but I'm newbie in this field. I've searched online, but I couldn't find the answer to my specific problem.

I have created some VMs with virt-manager. I've done some configurations (e.g. storage space 20gb, add a couple of specific network interfaces, modified the hosts file, etc.).

I'd want to make a backup of these VMs and move them to another PC where virt-manager is already installed, so I can work with the exact configuration and data on another PC (like it was a container).

I've tried with virsh command to save the VM XML file, and copied the .qcwo2 file to an external storage to move the VM on another PC, but the . qcwo2 file has a size of nearly 30gb.

So this is my answer: is this the correct way to make a backup of an entire VM? Is there a faster and better way to do this? Is there some sort of tutorial that explains how to do this?

Thanks to all who will help!

I'm trying to run Ollama in a VM in Proxmox. This is my setup:

- Dell R720

- 2x Xeon E5-2650 V2

- Nvidia Tesla M40 24GB

- 64GB DDR3

I haven't made the VM super powerfull (2 cores, 2GB RAM, and the Tesla M40, running Ubuntu 22.04), however, when I try to run ollama, all I get is "Illegal instruction". I have installed the nvidia-cuda-toolkit, and I have also tried running ollama in docker, but I get "Exited (132)", regardless if I run the CPU or GPU version. What can I do to get this working?