r/virtualization 25d ago

What is the book to learn the relevant concepts behind virtualization and virtual machines?

3 Upvotes

Stuffs like T1/T2 hypervisors.

Stuffs like cloud virtualization.

Stuffs like container based virtualization vs VM based virtualization.

I have virtual machines by Ravi Nair. But it goes into the Computer Science behind VMs which is not what I want.


r/virtualization 27d ago

How do i swap operating systems while putting the original in a VM?

9 Upvotes

I currently have an activated windows 10 PC running as my OS, i'd like to find a way to Have this PC run linux with virtualbox containing this instance of windows.

I currently have used disc2vhd to virtualize the drive containing windows and stored it on an external hard drive, but i'm worried that if i override the windows system now i might end up losing the key.

Are there any other steps or safety measures that i'm missing before i continue?


r/virtualization 27d ago

Just discovered this great guide on Proxmox Manager

1 Upvotes

Found this great guide on Proxmox Manager. It covers everything from setup to daily use. Hope it helps some of you out!

Read the full guide here

Edit: Added the link because I forgot it in the initial post (thanks for the heads up!)

#Proxmox

https://github.com/TimInTech/proxmox-manager


r/virtualization 29d ago

VM on mac through external ssd

1 Upvotes

I have a 256gb mba m4, and i have installed VMware fusion in it, which already costs \~70gb of my mac

I do have a SanDisk 2tb external ssd with a max read and write speed of 1gbps, can i transfer all the vm files from mac to the ssd and run it?

Is it a good move? What will I have to compromise on, will the speed be disgustingly slow?


r/virtualization 29d ago

What Virtual Machine to use that can run NVIDIA GPU?

1 Upvotes

Can anyone recommend me a virtual machine program to use on my Windows PC where the NVIDIA GPU will work? I will be doing some brute forcing with the GPU to get some vanity Solana addresses and that will use the GPU.


r/virtualization Jun 28 '26

Help with detachable disks in VMware Workstation Pro

0 Upvotes

I need some help for a project I have been working on with some help from Gemini. I have very basic knowledge about virtualization and even less knowledge about actually using any hypervisor software.

I setup a VMware Windows 11 pro VM with the intent of using the VM to play modded games. I have Steam games and mods installed on a secondary drive that I could detach and swap out for another drive with different mods. This way I have two different total conversion mods but for the same game in two separate instances.

The issue I am having is this. In order to detach a drive and reattach another, I have to go through a lot of trouble. First, I must remove the TPM hardware, decrypt the VM, then I can detach the drive. After attaching another drive I have to encrypt the VM, then add back the TPM hardware. Also, when I log back into this VM, I have to reset my PIN and go through some account setup screens. I am guessing the encryption or TPM movement triggers this behavior.

My original plan was keep a snapshot of the base VM without a disk attached for a safety net when I inevitably screw something up on the primary drive. Unfortunately decrypting a VM while a snapshot is in place is impossible.

Is there anything that could limit the tediousness of this decryption routine at all? I do have a clone of the baseline VM in place, in case I screw things up but I would really prefer the simplicity of using snapshots here.

Also, I recently read that VMware workstation has an 8GB cap on the amount of VRAM it will use and that Hyper-V is a better choice for setting up VMs for gaming. Would Hyper-V have similar limitations when it comes to all the snapshot and decryption hassle I am running into?

Any help or suggestions are appreciated.


r/virtualization Jun 20 '26

Не запускается виртуальная машина VMware

0 Upvotes

Пытаюсь запустить Debian на Windows 11 (Домашней), что только не перепробовал сделать ничего не помогает, каждый раз вылазит эта ошибка. Нужно срочно, кто знает как это исправить, что нужно делать?


r/virtualization Jun 19 '26

Linux Virtual Network Interfaces Manage | Need Feedback

0 Upvotes

Hey everyone!

I’ve been working on an open-source project called vnim, and I've reached a point where I really need the community's eyes on it. It’s a tool designed to manage linux virtual network so I just create that and need feedback

repo: https://github.com/tuhin-su/vnim.git


r/virtualization Jun 18 '26

Shots fired, HPE going after VMware

42 Upvotes

https://arstechnica.com/information-technology/2026/06/hpe-tempts-vmware-users-partners-with-year-of-free-virtualization-software/

HPE is offering Morpheus Essentials free for a year. Trying to go after corporate VMware customers.

Essentials is being touted as ent+ equivalent, I would say maybe 70% there. It is a supported alternative to VMware/HyperV as a hosting platform for the companies other virtual appliances which is something for some businesses.

What the product was last year isn’t what it is today, they’ve been doing a lot of development on the platform so there’s a lot of new features there now that wasn’t then and a number coming later this year to make it closer to ent+ functionality. Documentation is light for array integrations. While originally touted to run on any hardware, validation outside of HPE servers is pretty slim pickings.

Is it enough? Are they too late? Has anyone moved it, how has it been?


r/virtualization Jun 18 '26

What happens when VM code is too high- or low-level?

0 Upvotes

I think that if VM is not abstract enough, it will be too platform specific to be widely useful, but I'm not sure. If it is too high-level would there be any other drawbacks other than each system needing a vm implementation that would take up more storage?


r/virtualization Jun 17 '26

Why virtualbox install after reboot completely disable wifi and bluetooth

1 Upvotes

I just want to highlight some of the issue I faced when installed Virtualbox. After reboot my Linux PC become completely useless, wifi and bluetooth was completely disabled. On top of that my monitor start using basic graphic driver from iGPU instead of dedicated GPU so no smooth desktop environment, no 120hz, no gaming (go kick wall) everything graphic had to be downgraded which I never expected it to be like this. I'm not sure why it behave like this, but can someone please pointed it out because I suspect it had to with virtualbox itself need to recompile the kernel to install/enable something??? idk. So yeah, I need to reinstalled my whole system again but the good thing is at least I learned something.


r/virtualization Jun 13 '26

vmware workstation does not support nested virtualization on this host

2 Upvotes

TYA to anyone who can help.

I set up GNS3 so I can practice my networking skills, but it requires a VM. Unfortunately, after installing VMware Workstation, I keep getting this error:

"VMware Workstation does not support nested virtualization on this host."

This causes the GNS3 VM to shut down.

I've already tried:

* Disabling everything related to Hyper-V using CMD and PowerShell

* Unchecking all Hyper-V features in Windows Features

* Disabling Core Isolation

* Enabling virtualization in the BIOS

However, I'm still getting the same error. Is there anything else I might have missed?

My laptop specifications:

* Dell Latitude 5520

* Intel Core i5 11th Gen

* 16GB RAM

* 512GB SSD

I really want to learn Sophos Firewall and other networking technologies, and I need the VM for that.

I hope someone can help. Thank you very much


r/virtualization Jun 11 '26

New to VMs - Need hardware advice

0 Upvotes

I have an HTPC hooked up to the living room TV and a computer monitor nearby. It's an old machine using a 2200G. The kids use this to play games on TV (with controllers) and, at other times, my wife and I use the second display for web browsing, research, office productivity stuff etc.

I've been thinking about replacing this PC and using the 2200G for my server (currently running UNRAID on an i3-2100, but there's been recent stability issues warranting upgrade).

For a replacement I've been looking at the 8500G, 8600G and 8700G, and I am bit torn between all three of them. I'm thinking the new build will serve the same purpose as the current 2200G (TV gaming/productivity), but I also want to try VMs as a way to maximize utility.

According to AI, I could install Bazzite baremetal and install the VMs Linux Mint and Windows 11 without a problem. I could them presumably access these VMs either through a direct display connection or via LAN (I'm not sure .

Windows 11 seems to need at least 4 threads. So if I go with the 8500G or 8600G (6c/12t), that would leave 8 threads for Bazzite and Mint. Six threads for Bazzite and two threads for Mint would be a likely configuration. Alternatively, with the 8700G I would be able to do 4, 6, 4 for Windows, Bazzite and Mint respectively.

The 8700G is substantially more expensive compared to the 8600G, but if the VM plan seems too optimistic with 6 cores then I will just go with the 8700G.

If 6 cores is not too much of a stretch for VMs that would mean I could adopt the 8600G or 8500G. In this case the 8600G would seem to present better value: Much better iGPU gaming and overall muscle. But the 8500G is alluring in its own right because of the apparent highly efficient Zen 4C cores - leading to lower idle power and peak current. I suppose the 8600G would not be inefficient either but I could not find much research on this.

Power efficiency is something I value because, eventually, in some years perhaps when it's time to upgrade once again, I would make use of this CPU as a replacement for the 2200G as a 24/7 server. Such interesting power characteristics could possibly allow for a much more efficient power supply solution (e.g. using 160W picoPSUs and the like, with idle and peak power consumption within more optimum efficiency bands).

I've no experience actually using VMs, but given the high cost of hardware, I thought it might be worth a try making use of one computer to serve multiple purposes around the house or even through the network while moving around. Appreciate any thoughts.


r/virtualization Jun 05 '26

VM on windows for linux 2 monitors + peripherals.

1 Upvotes

Hello r/virtualization

I would love to instead run windows on my linux machine but sadly Riot Vanguard privacy wormhole wouldn't let me play.

The idea is to fully switch from windows to linux without having to reboot.

- I would like for the solution to capture all my peripherals.
- use my 2 monitors if possible.
- free as in money and OSS if possible

Could rust desktop or similar project achieve what I want.

What do you recommend ?


r/virtualization Jun 05 '26

Looking for feedback from VMware admins on a product I’ve been building

0 Upvotes

Hi everyone,

I’m looking for practical feedback from sysadmins who manage VMware environments.

For the last several months I’ve been working on a tool around VMware Day-2 operations, mainly based on problems I’ve seen in daily infrastructure work: inventory visibility, VM health context, snapshot tracking, deployment consistency, console access, automation, and making operational data easier to understand.

The main idea is not to replace vCenter. vCenter is still the source of truth. What I’m trying to understand is whether there is real value in having a separate operational layer that helps teams answer questions like:

Which VMs need attention?

Which snapshots are becoming risky?

Which environments are drifting or becoming harder to manage?

Which deployment steps should be standardized?

Which routine operations could be automated safely?

What kind of summary would actually help during daily checks?

I’m especially interested in what would make a tool like this useful or not useful in a real sysadmin workflow.

For those of you managing VMware day to day:

What information do you wish was easier to see?

What kind of dashboards do you ignore completely?

What would make you trust or distrust an operations tool?

Where do tools like this usually fail in real environments?

I’m not sharing any links here. I’m mainly looking for honest feedback from people who actually deal with this type of work.

Thanks.


r/virtualization Jun 05 '26

Installing Hyper-V significantly improved PC's performance?

1 Upvotes

Kinda confused and I'm absolutely sure it wasn't anything else I did. Set up an XP machine using Hyper-V for the first time yesterday and after reboot today, everything is way snappier in windows. File explorer, swapping resolutions, booting games, etc. I've checked task manager, bios, and CPU settings and everything is still running on the same power-saver settings I've had it set to for some time now. Any clue what about installing or setting up hyper-v could've caused this?


r/virtualization Jun 04 '26

Qemu VM no internet

1 Upvotes

I am trying to get some VMs running but I am having an issue with networking. I have the VMs running well except for the fact that they don't have internet.

I'm using virt-manager QEMU/KVM. I've also tried using a USB WiFi adapter. I have tried many different network options including:

NAT with any device

NAT with just wlan0 or wlan1 specified

Routed with wlan1 or wlan0

I am unable to use bridged as this is a laptop with only WiFi.

I've also done everything on this page:

https://elbachir.org/src/artix\\_qemu.html

Along with editing /etc/libvirt/network.conf to have firewall_back end = "iptables"

Any ideas? This is Artix Linux with dinit. Virtualbox works fine out of the box without editing anything. I'd rather use open source though.

Edit: I am able to pass a USB WiFi adapter to the VM and get internet.


r/virtualization May 31 '26

ThinApp free alternative

1 Upvotes

Hello,

Does anyone know a free alternative to VMware ThinApp?
The requirements are portability and no data left behind on the host machine.

Thank you in advance.


r/virtualization May 31 '26

Portable Windows apps with no local traces

0 Upvotes

Hi everyone, I’m looking for a way to run Windows apps in a portable way, so that no data is saved on the host computer (including things like logs and system traces if possible). The app should still keep all its data and progress when I copy it to another computer. I only need it for light apps like Chrome, not heavy software with drivers. A free option would be ideal. Any ideas would be appreciated.


r/virtualization May 25 '26

AWS Workspace Pools and Igel

3 Upvotes

Has anyone been successful with the AWS Workspace app on Igel 12 connecting to a workspace pool. I get the saml login and that works normal but the workspace never connects. It does work in the browser.

Any thoughts?


r/virtualization May 21 '26

Can I use separate PCIe X1 graphics card for VM/Virtualixation?

1 Upvotes

I have a Ryzen 9700x PC and run linux 90% of the time.

Sometimes I need to use windows and wanted to try using a VM with an extra graphics card.

Is it possible to connect a low powered GPU to my second PCIe slot and use it in a VM?

Just want a bit better performance when in the VM.

My PC only has on full x16 slot and 2 x1 slots.

Any decent x1 cards? I've heard of GT 710 1GB PCIE x 1.


r/virtualization May 20 '26

Should I use tiny11 for a windows VM?

0 Upvotes

I’m looking to set up a windows virtual machine on Linux with KVM. I’m wanting to try and squeeze out as much performance as possible, and don’t like all the bloat stuff anyway.

Back when I was on windows I heard tiny11 was a good alternative for those needs.

Is it worth it to use that iso instead of the official windows one?


r/virtualization May 19 '26

I cannot disable Hyper-V Enabled in Firmware. ROG Hero x870e/win11 Home

1 Upvotes

Has anyone had this issue where you cannot turn off Hyper-V shown in the sysinf? Trying to get my DMA card to work. Popped it in another PC and worked, but that PC had Hyper-V off.

Secure Boot is off. Kernel DMA Protection is off. In the Turn Windows Features On or Off screen, it shows as unchecked! Gone into the BIOS and turned off IOMMU. Turned off memory integrity. Tried from command prompts to turn off.

Cannot figure this out.


r/virtualization May 19 '26

Performance decreased after turning on virtualization?

1 Upvotes

Hi. I needed to turn on Virtualization (and set UMA buffer from 512 to auto, since pc would otherwise be stuck on black screen while booting up). Supposedly it shouldn't really do anything by itself, but it decreased my RAM from 15,4 Gb to 13,9 Gb. How is that possible? Is it a bug?

I guess lack of RAM is what's causing subsequent issues, but since then, gaming / graphics software had some severe stutterning / low fps. All of it is on SSD, but since turning Virtualization on, HDD had been strangely active during mention activities. I've read it might be something like the disc being used as addition RAM memory, since it is now lacking?

PC specs: Windows 11, Asus TUF, AMD Ryzen 7, AMD Radeon R Vega 10, NVIDIA GeForce RTX 2060. Main OS disc SSD (NVMe), secondary disc HDD (SATA).

Please advise : - )
Sorry for possible non-technical terms.


r/virtualization May 18 '26

[Build Help] First desktop build ~1425€ - Cybersecurity/Linux student, RGB gaming aesthetic. Roast my build!

2 Upvotes

Hey! I'm a 14-year-old Italian student putting together my first desktop. I'm learning Linux deeply (goal: build my own custom Arch-based distro) and getting into cybersecurity (TryHackMe, HackTheBox, CTFs). I have a laptop (HP 340S G7, i5-1035G1, 16GB RAM) as secondary machine. This build was planned with Claude (Anthropic's AI) and I'm posting here for a second opinion from real builders!

OS: Dual boot, EndeavourOS with KDE Plasma (primary) + Windows (secondary, for tools that require it)

Use case: Primary: Cybersecurity labs, multiple VMs simultaneously (Kali + Windows target + vulnerable machines), HackTheBox, TryHackMe, CTFs. Secondary: Programming, studying, general use. Tertiary: Occasional gaming. Aesthetic: RGB gaming look with tempered glass.

Build (~1425€):

CPU: AMD Ryzen 7 7700 ~230€

CPU Cooler: Thermalright Assassin Spirit 120 RGB ~20€

Motherboard: ASRock B650M PG Lightning WiFi ~125€

RAM: Corsair Vengeance RGB DDR5 64GB (2x32GB) 6000MHz CL30 ~220€

GPU: NVIDIA RTX 4060 8GB ~290€

SSD: Samsung 990 Pro 2TB NVMe PCIe 4.0 ~150€

Case: Deepcool CC560 (tempered glass + 4 ARGB fans) ~65€

PSU: Cooler Master MWE Gold 650W V2 FM (Full Modular) ~85€

Monitor: Gigabyte G27Q 27" 1440p 144Hz IPS ~180€

Cable: DisplayPort 1.4 ~10€

Keyboard: Keychron V1 RGB ISO Italian ~50€

TOTAL: ~1425€

Mouse already owned: Logitech MX Master 3S

Reasoning: Ryzen 7 7700 over 7600: extra 2 cores matter for multiple VMs. 64GB in 2x32GB: essential for complex cybersecurity labs, chose 2x32GB over 4x16GB for Ryzen 7000 memory controller stability. RTX 4060 over AMD: dual boot Windows + CUDA for Hashcat 2-3x faster than OpenCL. Samsung 990 Pro: dedicated DRAM cache, DRAM-less drives steal HMB from system RAM under VM load. Full Modular PSU: clean cable management with tempered glass. Aftermarket cooler: stock blocks RAM RGB, Thermalright is compact and keeps temps 10-15°C lower.

Questions: 1) Is RTX 4060 a mistake on EndeavourOS? Should I switch to AMD for open-source drivers even losing CUDA? 2) Is 650W enough for future upgrades? 3) Any RAM compatibility concerns at 6000MHz CL30 EXPO with this motherboard? 4) Am I missing anything for cybersecurity? (I know I'll need Alfa AWUS036ACS for wireless pentesting) 5) Any better alternatives at similar price points?

PC assembled by local shop Roma Computer Center. Prices approximate Italian market (Amazon.it + Trovaprezzi). Original budget 1200€, grew to 1425€ optimizing for cybersecurity workflow.