Arkyn OS

Arkyn OS 2.1.0 · private beta

Get Arkyn OS — and check it before you flash it.

The ISO is shared privately with testers while Arkyn is in beta. Ask for access, then verify the download against the checksum on this page.

Private beta

Request access

Email us with the machine you’ll install on. You’ll get a private download link — and, through a different channel, the checksum to compare it with.

Email Arkyn@datsov.com

Opens your mail app with a short template. We only use your email to reply and send the link.

Coming

Public download

A public ISO will appear here once the beta has run on more hardware. There is no public link yet — if you see one elsewhere, don’t trust it.

Step 1 — required

Verify the ISO

A mismatch means a corrupted or tampered download. Don’t flash it: delete it and download again.

File
ArkynOS-2.1.0-amd64.iso
Size
9,384,886,272 bytes (8.7 GiB)
Release
2.1.0 · Arkyn OS 26.04.1 · 2026-10-25

SHA-256

5c1034c8201bafb79b3695979ab3b60cc798f17cc49b4dfeb378e16532ee589a

Compare every character. Got the checksum from us by another channel too? It must match this page. That is the point: a swapped ISO would also need a swapped checksum in two places.

Linux
sha256sum ArkynOS-2.1.0-amd64.iso
# must print:
# 5c1034c8201bafb79b3695979ab3b60cc798f17cc49b4dfeb378e16532ee589a  ArkynOS-2.1.0-amd64.iso

Or put SHA256SUMS next to the ISO and run sha256sum -c SHA256SUMS — it must say OK.

macOS
shasum -a 256 ArkynOS-2.1.0-amd64.iso

The long string printed first must equal the checksum above.

Windows
certutil -hashfile ArkynOS-2.1.0-amd64.iso SHA256

Run it in PowerShell or Command Prompt in the folder with the ISO. The checksum it prints must match the one above (letter case doesn’t matter).

Step 2

Write the USB stick — safely

You need a USB stick of 16 GB or more whose contents you can lose. Write the image raw: never use a tool that “extracts” the ISO onto a FAT stick.

Windows or macOS: use a raw-image writer such as balenaEtcher, which verifies the stick after writing.

Linux with dd: dd writes to whatever device you name — naming the wrong one destroys that disk. Go slowly:

  1. Find the stick: lsblk -d -o NAME,SIZE,MODEL,SERIAL,TRAN,RM. It is the line with TRAN = usb and RM = 1. Unplug it and run the command again: the line that disappears is the stick. Never pick nvme0n1 or anything with RM = 0.
  2. Unmount it (replace sdX): for p in /dev/sdX?*; do sudo umount "$p" 2>/dev/null; done
  3. Write the whole device, not a partition:
    sudo dd if=ArkynOS-2.1.0-amd64.iso of=/dev/sdX bs=4M conv=fsync status=progress && sync
  4. Check what was written: sudo cmp -n "$(stat -c %s ArkynOS-2.1.0-amd64.iso)" ArkynOS-2.1.0-amd64.iso /dev/sdX && echo "stick OK"

Step 3

Boot and install

  1. Open the boot menu (F12 on ThinkPads; F11/F12/Esc on most PCs) and pick the UEFI entry for the stick. Keep Secure Boot on.
  2. Arkyn starts straight into a live desktop and opens the installer. Check Wi-Fi, keyboard, trackpad, sound and display first — what works live will work installed.
  3. Installing erases the whole target disk. Back up first.
  4. Keep Encrypt system ticked and choose a strong passphrase. It cannot be recovered if you lose it.

Full step-by-step guide in the docs →

Requirements

  • Processor64-bit PC (amd64)
  • Disk24 GB+
  • Memory2 GB minimum, 8 GB recommended
  • FirmwareUEFI with Secure Boot (recommended) or legacy BIOS
  • Tested onQEMU (UEFI + Secure Boot, UEFI, BIOS) and a ThinkPad L14 Gen 2 with a Pixel on GrapheneOS