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Debian
What it is
Debian is a free operating system from the Debian Project for personal computers and cloud virtual machines. It can be installed on a physical computer, started as a live system from CD, DVD, or USB, or deployed using cloud images. Debian systems use the Linux or FreeBSD kernel, and its APT package manager handles a collection of more than 70,000 packages. Installation choices include a live system with Calamares and an installer with options such as automated network installation. Debian supports architectures including amd64, i386, ARM variants, POWER, IBM System Z, and RISC-V. Along with stable, it offers testing and unstable releases for users who want newer software; upgrades can cover a full release or individual packages. Security features include coordinated advisories, CVE-compatible notices, OVAL information, and unattended upgrades. Free Long Term Support extends stable releases to at least five years. Debian also runs in virtual machines and containers, with help available through documentation, mailing lists, IRC, or consultants. Debian notes that hardware from companies that do not publish specifications may not work with GNU/Linux.
For and against
For
- Free to use and redistribute.
- Includes more than 70,000 packages managed by APT.
- Supports stable, testing, and unstable releases.
- Free Long Term Support extends stable releases to at least five years.
- Available as cloud images and for virtual machines or containers.
Against
- Undocumented hardware specifications may prevent GNU/Linux compatibility.
- Commercial Extended LTS covers only a limited set of packages beyond five years.
The verdict
Debian combines a large package collection with multiple installation and release choices, plus long-term support for stable releases. Check hardware compatibility first, particularly when manufacturers do not publish specifications.
Who it suits
Debian suits people choosing a free operating system for personal computers or cloud virtual machines, including those who want to manage packages with APT. Its listed uses span laptops, scientific and academic settings, public-sector work, supercomputers, stock exchanges, and automotive contexts.
Plans and prices
Debian
Free operating system · official distribution packages are free to use and redistribute
Read 30 Sep 2026 · debian.org
On the record
- Automatic updates
- The unattended-upgrades package can keep a computer current with security and other updates automatically.debian.org · read 30 Sep 2026
- Cloud and virtualization
- Official cloud images are available for major cloud platforms, and Debian can also run in desktop virtual machines or containers.debian.org · read 30 Sep 2026
- Installer
- Debian offers a live system with the Calamares installer and an installer with options including automated network installation.debian.org · read 30 Sep 2026
- Intended users
- Debian describes its uses across laptops, supercomputers, stock exchanges, automotive, academic, scientific, and public-sector settings.debian.org · read 30 Sep 2026
- Kernel support
- Debian systems currently use the Linux kernel or the FreeBSD kernel.debian.org · read 30 Sep 2026
- Long-term support
- Debian's free Long Term Support extends stable releases to at least five years; commercial Extended LTS covers a limited set of packages beyond five years.debian.org · read 30 Sep 2026
- Notable limitation
- Debian says hardware from companies that do not publish specifications may not work with GNU/Linux.debian.org · read 30 Sep 2026
- Release choices
- Alongside stable, Debian offers testing and unstable releases for users seeking newer software versions.debian.org · read 30 Sep 2026
- Security
- Debian coordinates security advisories with other free software vendors, and many advisories are published the same day a vulnerability becomes public.debian.org · read 30 Sep 2026
- Security formats
- Debian Security Advisories are CVE-compatible, and Debian publishes security information using OVAL.debian.org · read 30 Sep 2026
- Software collection
- Debian comes with over 70,000 packages, the APT package manager, and utilities for managing packages across computers.debian.org · read 30 Sep 2026
- Support channels
- Users can get help from Debian documentation, mailing lists, IRC, or hired consultants.debian.org · read 30 Sep 2026
- Supported architectures
- Debian supports architectures including amd64, i386, ARM variants, POWER, IBM System Z, and RISC-V.debian.org · read 30 Sep 2026
- Upgrade support
- Debian supports upgrades to a new release and updates to individual packages.debian.org · read 30 Sep 2026
- What it is
- Debian is a free operating system created by the Debian Project, an association of individuals.debian.org · read 30 Sep 2026
