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Slackware Linux 15.0

Official Linux ISO download for 64-bit systems.
desktopserveradvanced

Available downloads

Choose the image that matches your architecture and use case.

58
Total downloads
38
Desktop downloads
20
Server downloads
Slackware 15.0 — KDE Plasma desktop
Slackware 15.0 — KDE Plasma desktop
Reference screenshot; point releases may differ. The Slackware Linux Project; screenshot credited to DistroWatch by source · Source · GNU GPL (see source)

Description

Slackware Linux is an independent distribution known for traditional Unix-like administration, conservative integration and a straightforward package format. Slackware 15.0 remains the current stable release, while the separate current branch contains ongoing development toward a future release.

Who is Slackware Linux for?

Slackware Linux is primarily suited to daily desktop use, study, web browsing and productivity; servers, virtual machines and self-hosted services; experienced Linux users who want detailed control over the system. Before choosing it, compare the current release lifecycle with the length of support required for the machine. This distribution is based on independent, which influences package formats, repositories and much of the available documentation. The listed desktop environment is KDE Plasma, Xfce and user selected; confirm its memory, graphics and accessibility requirements on the official project site. The best choice depends on hardware support, preferred software, update policy and the amount of system administration the user wants to perform.

Before installing

Read the release notes and installation guide before downloading. Select an image that matches the processor architecture and intended use: desktop, server, live media, virtual machine or another published edition. Test Wi-Fi, graphics, audio, storage and suspend from live media when that option is available. Back up important files before repartitioning, encryption changes or dual-boot installation. For production deployment, verify application compatibility, upgrade paths, backup restoration and the project security-support policy in a non-production environment first. Download from an official project page or mirror, compare the published SHA-256 checksum, and verify a signed checksum when the project provides one. After installation, apply updates before adding third-party repositories or drivers.

Advantages

  • Offers installation or deployment options intended for server and infrastructure workloads.

Limitations

  • Installation or administration may require more Linux knowledge than beginner-focused systems.
  • Its independent package ecosystem can have fewer third-party instructions than Debian-, Ubuntu- or Arch-based systems.

Distribution details

System type
linux_distribution
Based on
independent
Desktop
KDE Plasma, Xfce and user selected
Updates
Stable releases
Categories
desktop, server, advanced

Installation requirements

Architectures
x86_64x86arm
Memory
Not yet verified
Storage
Not yet verified
Firmware
Consult the installation guide

Memory and storage depend strongly on enabled services, workload, redundancy and retention. Size production systems from the official deployment documentation.

Review official requirements

Safe download

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After installing Slackware

Six post-installation checks based on project documentation. Commands are examples for your own system, not an automatic installation script. Review your edition and current release notices first.

Applies to: Slackware 15.0 installed systems; not Slackware-current · Reviewed: 2026-09-07

  1. Create a normal user

    If installation left only root, use Slackware’s interactive account setup from a root shell, then use the new account for everyday tasks.

    Before you continue: Do not recreate an existing account. Read each group and password prompt.

    adduser
    Read project documentation: Create a normal user
  2. Choose one release-matched mirror

    In /etc/slackpkg/mirrors enable a single mirror for your release and architecture, not a -current mirror.

    Before you continue: Mixing release branches can turn a routine update into a distribution upgrade.

    Read project documentation: Choose one release-matched mirror
  3. Initialize package metadata

    After choosing the mirror, initialize the signing keys and package index in a root shell.

    Before you continue: Investigate signature errors rather than disabling verification.

    slackpkg update gpg && slackpkg update
    Read project documentation: Initialize package metadata
  4. Review package updates

    Follow the slackpkg guide to review and apply available patches. Read package and kernel notes before restarting.

    Before you continue: Back up local configuration first; updates need administrator supervision.

    Read project documentation: Review package updates
  5. Do not blindly clean third-party packages

    The clean-system operation can select third-party packages for removal. It is not a mandatory fresh-installation cleanup step.

    Optional step

    Before you continue: Review the blacklist and every removal candidate before using cleanup.

    Read project documentation: Do not blindly clean third-party packages
  6. Configure desktop and language deliberately

    Use the beginner guide to choose a desktop and localization. Keep the normal user account separate from root maintenance sessions.

    Read project documentation: Configure desktop and language deliberately

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