UmVirt

About

UmVirt is private virtualization lab, software developer and GNU/Linux distribution maintainer.

Research projects

ULFS - Sample source code GNU/Linux distribution based on Linux From Scratch and Beyond Linux From Scratch books.
- ULFSVM - Virtual machines disk images based on ULFS.
- LFSAutoBuilder - Automatic Linux From Scratch (LFS) disk image builder.
- On-line Linux kernel configuration checker - Web-service to check Linux configuration files.
- Clusters - Building clusters with ULFS.
- Waydroid@ULFS - Research project aimed to port Waydroid to ULFS.
- ZoneMinder@ULFS - Research project aimed to port ZoneMinder to ULFS.
Autobuilds - Autonomous source code package bundles with automated build script for ULFS and other GNU/Linux distributions.

Web-services

bcoins - Cryptocurrency prices.
V86 - x86 (i686) emulator for browser. 32-bit raw ULFS disk images are supported (Console, LXDE, Mate, XFCE).
Snap - Alternative web-interface to Canonical Snapcraft.
Unicode map - Service to check Unicode support in browsers.

Video

ReactOS 0.4.15 installation automation with Umvirt VMexec

Source code

GitLab - Primary public source code repository, issues trackers.
GitHub - Secondary public source code repository, issues trackers.

News

2026-05-17
- Fixed demo disk images for ULFS 0.2.4 is now available. Reviews are welcome!
2026-05-15
- Warning: Another critical vulnerability has been found in Linux kernel!
  All ULFS releases affected. Please stop using ULFS. Fixed disk images will be released soon. Stay tuned!
2026-04-30
- Warning: Most critical vulnerability in history CVE-2026-31431 called "Copy Fail" has been found in Linux kernel!
  All ULFS releases affected. Please stop using ULFS. Fixed disk images will be released soon. Stay tuned!
2026-04-20
- New tool V86 emulator is available. Raw ULFS 32-bit images (i686) are supported.
2026-04-05
- New service "On-line Linux kernel configuration checker" is available. This service is allows to check Linux configuration files with browser.
2026-03-06
- Demo Live DVD/USB ULFS 0.2.4 alpha is available. No build is needed, just download and run.
2026-02-22
- ULFS Build Environment Live DVD/USB to build Linux From Scratch 12.4 has been updated to support TWIN and some fun stuff.
2026-01-01
- 2025 annual report is published for our users and followers.
2025-09-19
- ULFS Build Environment Live DVD/USB to build Linux From Scratch 12.4 is now available. Now with VTM and SysV support.
2025-08-20
- It's possible to use ULFS to build clusters.
2025-08-05
- Updated autobuilds for ELKS and ReactOS.
2025-06-11
- Demo Live DVD/USB ULFS 0.2.3 alpha is updated. Now with a lot of KDE 6 applications and games.
2025-05-29
- ULFS 0.2.3 and ZoneMinder can be used to convert a computer or virtual machine to NVR (Network Video Recorder).
2025-05-23
- Demo Live DVD/USB ULFS 0.2.3 alpha is available. No build is needed, just download and run.
2025-05-15
- ULFS 0.2.3 is can be used to build KDE and then LXQT. It's take a lot of time but allows to build various KDE applications like Falkon browser.
2025-05-06
- Research "Waydroid porting to ULFS" is done. Now it's possible to run Android in ULFS 0.2.3 with Waydroid.
2025-04-18
- ULFS 0.2.3 can be used to build HTML-documentation of Linux From Scratch books (LFS, BLFS, MLFS, GLFS) from source code.
2025-03-10
- ULFS Build Environment Live DVD/USB to build Linux From Scratch 12.3 is now available.
2025-03-08
- LFSAutobuilder was upgraded. Now it can be used to build LFS 12.3-systemd bootable disk images.
2025-02-25
- Experimental Webchat was launched.
2025-01-01
- 15th anniversary report is published for our users and followers.
2024-08-27
- New service "Snap" to download .snap-files from Canonical Snapcraft.

Support us

If you appreciate our achievements you can support us indirectly:

Use, install, promote ULFS, LFS, GNU/Linux, open-source software.
Create an autobuilds bundles.
Develop an open-source software.
Rewrite to C or C++ languages software written particularly or entirely on other languages (especially Rust, Java, Go).
Fork and improve abandoned critical open-source software written on C or C++ (like libxml2, librsvg).
Contribute to:

Also you can support us directly by making donation in crypto:

Monero (XMR): 4A5MN33XcoT2YkqGj1JeM4Ws1baG7J1Du9yvjqLZGnX77HKkb5XRwuPQTFVCH9njNxdCAT2zWwDQLFBndmLEfk4oGP1mDUw
Etherium, ERC20-tokens(ETH): 0x7E7d46dF3C2b204adeaf1927Db48647e93a42248

If you don't have a crypto, you can earn it with your CPUs using ULFS and xmrig package.

Contacts

Webchat <- Leave your messages there.

Thanks to

Thanks to our motivators that motivates us to resume off-line GNU/Linux distribution development:

NASA for Artemis II Mission. It was very intresting to watch space Journey.
Dreamdance music compilation for trance & techno music that keep us running.
Kontor music video channel for music videos that inspire us.
Lada for Lada Niva Legend a car with World-Wide fan-club community.