Ubuntu 24.04 LTS on 64-bit Arm, a free long term support Linux base, hardened and patched for Arm cloud instances.
Ubuntu Server 24.04 LTS is the current long term support release of the Ubuntu Linux distribution, with a modern kernel, toolchain and package set and security maintenance to 2029. This is the native 64-bit Arm (AArch64) build, made to run on Arm virtual machines, where the same workloads often cost less to run than on x86 for the same performance. It gives you a stable, modern foundation for application hosting, container platforms and cloud native workloads on Arm.
This image is a clean, fully patched Ubuntu 24.04 LTS Arm foundation to build your own services on, with no subscription, no licence key and no default credential.
The cloudimg image is a hardened Ubuntu 24.04 LTS Arm base with every available security update applied at build time and unattended security updates armed, so instances keep patching themselves. No credential is baked in: access is by the SSH key you choose at launch, and the machine identity and SSH host keys are regenerated uniquely on every instance, so no two machines share a secret. Password login is disabled, root password login is off, and AppArmor stays enforcing. A paired deployment guide tested against the exact image is included, and every instance is backed by 24/7 cloudimg support.