Download FoundryOS

One ISO. Boots live, installs encrypted, and rolls back from the bootloader.

StableJuly 2026

FoundryOS 1.0.19

x86-64 · 2.7 GB · Debian 13 Trixie base · build 85b70da

Download ISO

Always verify the checksum before writing — see below.

Release channels

Stable

Recommended

The only channel. Every ISO is cut, soaked, and VM-validated before it lands here — what we'd put on a machine we depend on.

Between releases

Automatic

First-party fixes ship to installed systems as signed packages through the FoundryOS apt repository — no reinstall, no separate channel to opt into.

Verify your download

The SHA-256 for foundryos-1.0.19-amd64.iso is published here, on the site origin — independent of the download host:

c081ef420739ab38e014a34d39c8b01543799ac3da4c04e8aeb59ec790ae65fe

curl -fsSLO https://foundrylinux.com/downloads/SHA256SUMS
sha256sum --check SHA256SUMS --ignore-missing

Full GPG verification steps and the archive key fingerprint are on the Security page — verify the fingerprint before trusting the keyring.

Write it to a USB drive

Replace /dev/sdX with your USB device — this erases it.

sudo dd if=foundryos-1.0.19-amd64.iso \
  of=/dev/sdX bs=4M status=progress oflag=sync

Prefer a GUI? Etcher and GNOME Disks both work.

System requirements

CPU: 64-bit x86 (UEFI firmware required)
RAM: 4 GB minimum · 8 GB recommended
Disk: 30 GB free · SSD recommended
Firmware: UEFI · Secure Boot can stay on (signed shim → GRUB → kernel chain)
GPU: Intel / AMD out of the box · NVIDIA via the curated overlay

The installer sets up Btrfs + snapper, GRUB boot-rollback, and LUKS2 full-disk encryption (on by default, opt-out) automatically. Secure Boot works out of the box via the signed shim → GRUB → kernel chain; NVIDIA's DKMS module is MOK-signed so it loads with Secure Boot enforcing.

FoundryOS is free software — the full written offer of corresponding source (GPL) is at /source-offer.