Black and white line drawing of a Casuarina nut.

Download

The latest ISO for x86_64 based computers is:

casuarina-linux-x86_64-LIVE-20260518-base.iso (SHA256 sums)

Note: this is an initial preview release. There’s still things to work on and improve, but it should be usable.

If you plan to install Casuarina on physical hardware it’s recommended that you are already experienced with Linux and are prepared to debug any issues you encounter. Using Casuarina today means participating in its development.

After booting from the ISO follow the installation guide to install Casuarina.

Verifying Downloads

SHA256 hashes of all downloads in a particular release are provided in the sha256sums.txt file. Additionally this file is signed with minisign in order to allow you to verify its authenticity. On Casuarina the minisign public keys are available in the casuarina-image-keys package, which also depends on minisign. The public keys are also published to the repo in /live/keys and should match the files in the casuarina-image-keys package. New keys are used for each new ISO release.

To verify downloads retrieve the SHA256 sums and signature. E.g.

fetch https://repo.casuarina.org/live/latest/sha256sums.txt
fetch https://repo.casuarina.org/live/latest/sha256sums.txt.minisig

Verify the signature. Note the release date (20260518 in the examples) is in the name of the ISO:

minisign -Vm sha256sums.txt -p /usr/share/casuarina-image-keys/20260518.pub

Successful output will confirm verification:

Signature and comment signature verified
Trusted comment: timestamp:1766262914	file:sha256sums.txt	hashed

Check the SHA256 hash:

sha256 --ignore-missing --check sha256sums.txt

The output should show something like:

casuarina-linux-x86_64-LIVE-20260518-base.iso: OK