# Download WolOS

> Download WolOS 0.12.0 with its SHA-256 checksum and release.json, write it to a USB stick, try WolOS without installing, or start it in a VirtualBox machine.

Source: https://wolos.org/download

**This is a test ISO, not a stable release.** Use a virtual machine or a spare disk.

| | |
|---|---|
| Version | 0.12.0 |
| Image | https://cdn.wolos.org/v0.12.0/wolos-2026.11.03-x86_64.iso |
| Checksum file | https://cdn.wolos.org/v0.12.0/wolos-2026.11.03-x86_64.iso.sha256 |
| Signed manifest | https://cdn.wolos.org/v0.12.0/release.json and https://cdn.wolos.org/v0.12.0/release.json.sig |
| Size | 2128435200 bytes (1.98 GiB) |
| SHA-256 | `0847e23229cc1cca743d8bef96f45e860471c331a90bb27a945f76c2d67dab11` |
| Arch snapshot | 2026/10/31 |
| Kernel | 1:1.0+7.3-6 |
| Mirror | https://github.com/wonderlandos/wolos-packages/releases/tag/v0.12.0 |
| Every release | https://wolos.org/releases.md |

Check: `curl -LO https://cdn.wolos.org/v0.12.0/wolos-2026.11.03-x86_64.iso -LO https://cdn.wolos.org/v0.12.0/wolos-2026.11.03-x86_64.iso.sha256 && sha256sum -c wolos-2026.11.03-x86_64.iso.sha256` (prints `wolos-2026.11.03-x86_64.iso: OK`), or `echo "0847e23229cc1cca743d8bef96f45e860471c331a90bb27a945f76c2d67dab11  wolos-2026.11.03-x86_64.iso" | sha256sum -c`

## Start it

1. Write the ISO to a USB stick of 4 GB or more (balenaEtcher, Fedora Media Writer, Rufus in DD mode, or dd).
2. Start from the stick's UEFI entry. With Secure Boot on, the stick shows a blue key screen once: Enroll key from disk, ENROL_THIS_KEY_FOR_WOLOS.cer, Continue, Yes, Reboot.
3. Choose Try WolOS (changes nothing) or Install WolOS (shows a summary before writing).

## Secure Boot key screen (first start after installing, only if you turned Secure Boot on in the installer)

1. Press a key.
2. Choose Enroll MOK, then Continue, then Yes.
3. Password: `boot` (nothing shows while typing).
4. Choose Reboot. Missed it? Run `wol boot enroll` and restart.

## VirtualBox

Linux / Arch Linux (64-bit), EFI on, Secure Boot off (or the stick's key enrolled), 6 GB and 4 CPUs (the test machine), VMSVGA with 128 MB or more, 32 GB disk, ISO on the optical drive. Older images (0.11.3): the installed desktop could stay black under VMSVGA; fixed in 0.11.5 and 0.12.