Alibaba Cloud Linux 3 is the third edition of the Linux operating system developed by Alibaba Cloud. It is built on top of the Anolis OS that was released by the OpenAnolis community and is fully compatible with the CentOS 8 and Red Hat Enterprise Linux (RHEL) ecosystems. In addition to all the proprietary features inherited from Alibaba Cloud Linux 2, Alibaba Cloud Linux 3 provides improved security, stability, and runtime performance. You can create Elastic Compute Service (ECS) instances from Alibaba Cloud Linux 3 images. Alibaba Cloud Linux 3 images are free to use, and Alibaba Cloud provides services for them.

Use scenarios

Alibaba Cloud Linux 3 is suitable for the following scenarios:
  • Various workloads in cloud environments, such as databases, cloud native containers, data analytics, web applications, and other workloads in the production environment.
  • Various instance families, including ECS Bare Metal Instance families. For more information, see Instance family.
    • Alibaba Cloud Linux 3 supports instance types that have up to 768 vCPUs.
    • Alibaba Cloud Linux 3 supports instance types that have 0.5 GiB to 12,288 GiB of memory.
    • Alibaba Cloud Linux 3 does not support non-I/O optimized instances.

Benefits

Alibaba Cloud Linux 3 inherits all the benefits of Alibaba Cloud Linux 2. Compared with other Linux distributions, Alibaba Cloud Linux 3 has the following advantages:
  • Alibaba Cloud provides free software maintenance and technical support for Alibaba Cloud Linux 3 until April 30, 2031.
  • Alibaba Cloud Linux 3 uses Linux Kernel 5.10 LTS as the kernel to provide the latest enhanced operating system features from the Linux community to improve cloud-based application environments.
  • Alibaba Cloud Linux 3 uses GCC 10.2, binutils 2.35, and glibc 2.32 to enhance stability and improve compatibility with other software.
  • Alibaba Cloud Linux 3 is compatible with the CentOS 8 and RHEL 8 software ecosystems.
  • Alibaba Cloud Linux 3 is optimized for integration with the Alibaba Cloud infrastructure and provides faster system startup and higher runtime performance.
  • Alibaba Cloud Linux 3 provides feature adaptation, performance tuning, and stability hardening for Intel, AMD, and ARM processors to ensure that the operating system can keep running in a stable and reliable manner.

Images

Image ID of the latest version Description
Alibaba Cloud Linux 3.2104 64-bit aliyun_3_x64_20G_alibase_20210910.vhd The default standard image version of Alibaba Cloud Linux 3.
Alibaba Cloud Linux 3.2104 64-bit (Quick Start) aliyun_3_x64_20G_qboot_alibase_20211214.vhd
This image version is a customized image based on the Alibaba Cloud kernel. It supports quick boot (Qboot) and starts instances from the kernel. Instances created from images of this version start faster than those created from other images, and share the same default runtime as those created from images of standard versions. This image version has the following characteristics:
  • The initial startup of instances is accelerated. Subsequently startup of instances occurs at normal speed.
  • The memory initialization process is optimized and accelerated, devices that take time to start such as mice are modularized, and the kernel boot is sped up.
  • The cloud-init service is replaced with the latest AliyunInit service to reduce the amount of time required to initialize the operating system.
  • The kernel startup parameter of the Quick Start version cannot be modified.
  • The following instance families are not supported: GPU-accelerated compute-optimized instance families, vGPU-accelerated instance families, FPGA-accelerated compute-optimized instance families, NPU-accelerated compute-optimized instance families, heterogeneous instance families, Super Computing Cluster (SCC) instance families, and security-enhanced instance families.

Billing

Alibaba Cloud Linux 3 images are provided for free. However, you must pay for other resources such as vCPUs, memory, storage, public bandwidth, and snapshots. For more information, see Billing overview.

Obtain Alibaba Cloud Linux 3 images

You can use one of the following methods to obtain and use Alibaba Cloud Linux 3 images:

Update history

Technical support

Alibaba Cloud provides the following technical support for Alibaba Cloud Linux 3:
  • Eight years of long-term technical support (LTS) is guaranteed in the form of security updates and vulnerability fixes until the release lifecycle ends on April 30, 2031. You can use one of the following methods to obtain free LTS:
  • Images are updated every four months. Updates cover new features, security updates, and vulnerability fixes.
  • Security updates are provided from YUM repositories. You can run the yum update command to update an image to the latest version.