Getting an ISO

First, we have two ways to obtain an ISO file.

• If you want the convenience of saving time on building, you can choose to download the ISO from hosting services.
• If you want your ISO to always be up-to-date, you can choose to build it from source code.

Obtain an ISO

Caution

Each edition you select and download corresponds to installing that edition on your system.

RengeOS ISO (Minimal Edition)

Last time the ISO was built: 2026-03-20

SourceForge (Latest)

Obtain an ISO here: Download

Github Release (Latest)

Obtain an ISO here: Download

How to combine ISO: Instruction

RengeOS ISO (NiriWM Edition)

Last time the ISO was built: 2026-03-20

SourceForge (Latest)

Obtain an ISO here: Download

Github Release (Latest)

Obtain an ISO here: Download

How to combine ISO: Instruction

Download from Github and combine each ISO part

Note

• I did this on Linux, but it should work on other operating systems as well because I used cat to merge the parts into a complete ISO.

• First, you need to know which files we need to download to combine them into a complete ISO.
• We need to download the parts with the extension .iso.part001, .iso.part002, etc.

• After downloading, I’ve saved them in the ~/Downloads/ folder, and we’ll combine them into a complete ISO.

# I need to move to the location where the downloaded parts are stored.
cd ~/Downloads/
# Now let's combine them.
cat rengeos-niriwm-2026.03.20-x86_64.iso.part* > rengeos-niriwm-2026.03.20-x86_64.iso

Build it from source code (Arch-based)

Caution

Sometimes, constant updates by the maintainer can make the ISO file unstable.

Let’s get started!

With RengeOS ISO (Minimal Edition)

• First, you need to git clone this folder to your HOME directory.

# You can replace ~ with $HOME if you want.
cd ~ && git clone --branch minimal-iso https://github.com/RengeOS/Source-ISO && cd ~/Source-ISO/

• Then run the build_iso script.

./build_iso

• After the build process is complete, we will have the ISO file located in the out folder.
• Inside the out folder, you will find the ISO file and the SHA256 checksum file.

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With RengeOS ISO (NiriWM Edition)

• First, you need to git clone this folder to your HOME directory.

# You can replace ~ with $HOME if you want.
cd ~ && git clone --branch niriwm-iso https://github.com/RengeOS/Source-ISO && cd ~/Source-ISO/

• Then run the build_iso script.

./build_iso

• After the build process is complete, we will have the ISO file located in the out folder.
• Inside the out folder, you will find the ISO file and the SHA256 checksum file.

Checksum ISO file (Recommend)

Caution

Please ensure you have the sha256sum package on your distribution before proceeding.

• You might be wondering how to ensure the integrity of an ISO file when it’s downloaded.
• Therefore, we will perform an additional step to verify the integrity of the ISO by comparing the ISO with the SHA256 hash following the steps below:

• First, make sure you have downloaded the ISO file and the SHA256 ISO file to the same folder before testing!

[test@rengeos ~]$ ls test/
rengeos-2026.03.20-x86_64.iso  rengeos-2026.03.20-x86_64.iso.sha256

• Now we will proceed to checksum the files.
• Replace it with the SHA256 file of the ISO you downloaded earlier, and here is an example:

[test@rengeos ~]$ cd test/ && sha256sum -c rengeos-2026.03.20-x86_64.iso.sha256
rengeos-2026.03.20-x86_64.iso: OK

• If it says OK as above, then your ISO is definitely fine; otherwise, I recommend you download a new ISO.

After the ISO download process

• After the ISO download process is complete, you’ll probably want to create a bootable USB drive.

Create Bootable USB