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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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I'm looking for virtualization-based desktop Linux setup (piefed.social)

submitted 1 week ago by zimno@piefed.social to c/linux@lemmy.ml

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I love virtualization in Linux and I would like to have operating system which will work only as minimal, air-gapped as much is possible host for my guest operating systems. Qubes OS project really interested me but it's based on Xen hypervisor so it might cause troubles with GPU Passthrough which is really important for me also I'm more interested in KVM. In my case it's not only about security and privacy but also about fun and learning. What can you recommend? I think that good choice might be Gentoo Linux because it allows for minimal installation and remove unnecessary software like CUPS, Bluetooth entirely with flags which will be great option for host only OS. But I had experience with Gentoo and it's not easiest way 😅 Debian might be easier option but I will have less control over my system. Maybe you have other interesting options?

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[–] Neptr@lemmy.blahaj.zone 5 points 1 week ago (2 children)

If all you want is KVM, than any Linux distro + virt-manager will work perfect. My general recommendations for Linux distros are Fedora and openSUSE, because they are usually pretty up-to-date. Arch is also a good option, though not as stable. Choose KDE Plasma or GNOME when using GPU passthrough (because most guides will be made for either of these DEs).

[–] zimno@piefed.social 0 points 1 week ago (1 children)

That's what I'm thinking about but I think that OpenSUSE or Fedora might be too much bloated. Someone recommended AlmaLinux and I think that might be a great solution.

[–] Neptr@lemmy.blahaj.zone 1 points 1 week ago

Alma is an LTS enterprise distro so gets pretty out of date after some time, and I don't think it is significantly more bloated than Fedora because AlmaLinux is downstream of Fedora. Just uninstall the apps you don't want on install. Even better is openSUSE Tumbleweed because the YaST installer allows for you to pick and choose every package (or group of packages) that makes it onto your final system.

[–] mpramann@discuss.tchncs.de -1 points 1 week ago (2 children)

That seems far from minimal. A bare metal virtualisation manager like promox should fit the job much better with no actual overhead.

[–] Neptr@lemmy.blahaj.zone 4 points 1 week ago

They specifically asked for a desktop operating system, so I recommended systems with a GUI. Proxmox comes with its own bloat, Arch would be far more minimal without the need for a bunch of dependencies.

[–] moonpiedumplings@programming.dev 1 points 1 week ago* (last edited 1 week ago)

Proxmox is based on debian, with it's own virtualization packages and system services that do something very similar to what libvirt does.

Libvirr + virt manager also uses qemu kvm as it's underlying virtual machine software, meaning performance will be identical.

Although perhaps there will be a tiny difference due to libvirt's use of the more performant spice for graphics vs proxmox's novnc but it doesn't really matter.

The true minimal setup is to just use qemu kvm directly, but the virtual machine performance will be the same as libvirt, in exchange for a very small reduction in overhead.