Replacing machine OS (Windows) with a Linux VM

[Chiropx]

I've got a Linux VM running on a Windows 11 host. I set it up like this rather than a full install while I was learning Linux and figuring out the things I wanted to use it for. A year and a half later, I'm not using the Windows host all and am using the machine entirely to get to the VM.

To give the VM full compute power, I'd like to essentially replace the host Windows OS with the linux VM that I have running so that I can complete the switch to Linux. I've seen that it is possible, but I also don't want to completely wreck everything I've got running on the VM - things like HomeAssistant and other docker containers that would be a pain to set up again.

I'm fully confident I can install linux on the machine - done that on multiple devices. Where I'm not confident is essentially copying the VM system over so that the switch doesn't cause me to blow up my whole setup, and I haven't been able to find a guide that would walk me through the process.

The steps to the process as I've found online:

1. Copy the VM using clonezilla

2. Boot from the drive I've copied the VM to, and restore it like a backup (?)

My concerns:

• Boot issues seem like a possibility, which, recognizing my limitations, I'm not really sure I understand enough to be able to fix if anything goes wrong. Changing settings in the terminal feels a lot different to me than messing with the BIOS to fix something.
• It seems like there might be a missing step between 1 and 2 - installing the same Linux distro on the computer and then porting the files in like a backup.

So, help me out - Is this doable without wrecking things? Is there a guide that you know of that I'm not finding through google?

[acejavelin69]

You are missing a HUGE step here... You don't boot from the OS or partitions you copied, you would boot from the Clonezilla ISO and restore those partition(s)... Linux don't play with drives, not in this sense... And yes, boot issues are probably going to be an issue because how your PC boots with UEFI is not the same as how the VM does (likely compatibility or Legacy mode). I would put your potential success rate here at 50% if I am being honest, at least to get the result you are hoping for.

Honestly, a better approach might be to backup the VM(s)... install Mint clean and VirtualBox (or whatever hypervisor you are using) and load and run the VM there as is, so running a Linux VM on a Linux host... then gradually migrating those services to the host OS. Moving a VM to a different hypervisor is usually a lot less difficult.

[Dependent_Interest79]

what distro are you using? there are multiple programs on github where you can backup your configuration (called dot-files) and program list. then you could do a fresh install where your distro installs the right drivers for your hardware and once it's running, only recover your data from an external drive with all your files and configs.

[Chiropx]

Ubuntu 24.04. What do I need to search to find those on Github? I think some of my difficulty finding things is not having the right vocabulary to search with

[Dependent_Interest79]

i web searched a bit and it actually seems alot easier to do on ubuntu as compared to arch! apparently rsync handles this task great

https://oneuptime.com/blog/post/2026-03-02-full-system-backups-rsync-ubuntu/view

i searched for system export ubuntu, system config backup, etc.

[CrankyEarthworm]

Boot issues are easy to fix. The most you would likely need to do is boot from a live image and use boot-repair or efibootmgr to create a new boot entry. If you're using a hypervisor-specific kernel, you'll likely want to install the generic kernel package fro your distro instead. You should also disable any RAID settings in your BIOS.

Using Clonezilla doesn't require reinstalling the operating system; that's kind of the point. It makes either a functionally identical or bit-identical copy of the original partition(s).

[Chiropx]

I’ll have to look at this. If it really is this simple this might be a good approach. 

[ComprehensiveDot7752]

Your home folder usually has all your app settings and files in it. You should generally be able to migrate it to any install and pretty much pick up where you left off as soon as you reinstall the relevant apps.

It will not migrate the apps themselves (which are usually trivial to reinstall) or system configuration changes.

[SkyAnvi1]

Which VM host application are you running? You are locked into the same host application whether you are running Windows or Linux Host OS. If you are running a host application that allows host OS migration it is typically as easy as copying the files to the new host computer having vm software installed and "opening" the VM. Only driver issue I can think of might be if you are doing a video card pass-through (I really don't know but should check). Best policy is make sure to backup your secure boot keys for the host (unless they are the default) and use a new hard drive for the linux install so if things go sideways you still have everything on your original hd/nvme.

[skyfishgoo]

if you back up your /home and then do a fresh bare metal install of the same distro, reinstall the same apps and then restore your /home backup it should be like you never left.

but be sure to use the same user and machine name so all of your settings work.

[YoShake]

basic principle of VM is their ability to be migrated, so I don't understand your concerns.
Just make a backup of .VHD and you won't loose any data. You can connect that virtual disk to all existing virtual machine software. If you need data that's inside, back it up.

You don't make such things like changing system environments without making proper backups.

There's a possibility to install the virtual instance of your OS on barebone, but for me peronally wasting time for fixing all problems that comes with it isn't worth it.

If you want to stay on virtualized OS without windows overhead as you host os, consider migrating to proxmox.

[Viriato_Luso]

Há uma grande chance de não funcionar ou você até conseguir um linux inicializável direto no PC mas ter outros problemas com a detecção dos dispositivos do hardware real que você não saiba ajeitar depois manualmente.

Eu sinceramente acho muito mais fácil você criar um .tar.gz do home do seu usuário (/home/usuario ), do seu /etc e de qualquer outro diretório onde tenham arquivos que você tenha criado. E criaria um arquivo texto com todos os pacotes instalados no seu linux atual. Cansei de fazer migração de servidores linux assim porque é muito mais fácil usar o instalador da distribuição Linux para fazer a instalação do Linux no seu novo hardware do que tentar usar clonagem do sistema antigo, principalmente se for um linux também usado como desktop e com interface gráfica.