- What's New
- Function Overview
- Service Overview
- Getting Started
-
User Guide
- Managing Public Images
-
Creating a Private Image
- Introduction
- Creating a System Disk Image from a Windows ECS
- Creating a System Disk Image from a Linux ECS
- Creating a Windows System Disk Image from an External Image File
- Creating a Linux System Disk Image from an External Image File
- Creating a BMS System Disk Image
- Creating a Data Disk Image from an ECS
- Creating a Data Disk Image from an External Image File
- Creating a Full-ECS Image from an ECS
- Creating a Full-ECS Image from a CSBS Backup
- Creating a Full-ECS Image from a CBR Backup
- Creating a Windows System Disk Image from an ISO File
- Creating a Linux System Disk Image from an ISO File
- Importing an Image
- Fast Import of an Image File
-
Managing Private Images
- Modifying an Image
- Exporting Image List
- Checking the Disk Capacity of an Image
- Creating an ECS from an Image
- Deleting Images
- Sharing Images
- Exporting an Image
- Optimizing a Windows Private Image
-
Optimizing a Linux Private Image
- Optimization Process
- Checking Whether a Private Image Needs to be Optimized
- Uninstalling PV Drivers from a Linux ECS
- Changing the Disk Identifier in the GRUB Configuration File to UUID
- Changing the Disk Identifier in the fstab File to UUID
- Installing Native Xen and KVM Drivers
- Installing Native KVM Drivers
- Clearing System Logs
- Encrypting Images
- Replicating Images Within a Region
- Replicating Images Across Regions
- Tagging an Image
- Auditing Key Operations
- Windows Operations
- Linux Operations
- Permissions Management
-
Best Practices
- Overview
- Creating a Linux Image Using VirtualBox and an ISO File
- Cleaning Up the Disk Space of a Windows ECS
- Converting the Image Format
- Creating a Private Image Using Packer
- Configuring an ISO File as a Local Image Source
- Migrating Service Data Across Accounts (Data Disks)
-
API Reference
- Before You Start
- API Overview
- Calling APIs
- Getting Started
- IMS APIs
-
Native OpenStack APIs
-
Image (Native OpenStack APIs)
- Querying Images (Native OpenStack API)
- Querying Image Details (Native OpenStack API)
- Updating Image Information (Native OpenStack API)
- Uploading an Image (Native OpenStack API)
- Deleting an Image (Native OpenStack API)
- Creating Image Metadata (Native OpenStack API)
- Deleting an Image (Native OpenStack API v1.1 - Abandoned and Not Recommended)
- Querying Image Metadata (Native OpenStack API v1 - Abandoned and Not Recommended)
- Querying Image Details (Native OpenStack API v1.1 - Abandoned and Not Recommended)
- Image Tagging (Native OpenStack APIs)
- Image Schema (Native OpenStack APIs)
- Image Sharing (Native OpenStack APIs)
- API Version Query (Native OpenStack API)
-
Image (Native OpenStack APIs)
- Examples
- Permission Policies and Supported Actions
- Common Parameters
- Status Codes
- Error Codes
- SDK Reference
-
FAQs
-
Image Consulting
- Basic Concepts
- How Do I Select an Image?
- Are There Any Public Images Already Containing Certain Applications, Such as OpenVPN or PyTorch?
- How Do I Increase the Image Quota?
- What Are the Differences Between Images and Backups?
- Can I Tailor an Image?
- How Can I Back Up the Current Status of an ECS for Restoration in the Case of a System Fault?
- How Can I Apply a Private Image to an Existing ECS?
- Can I Import Data from a Data Disk Image to a Data Disk?
- Can I Use Private Images of Other Accounts?
- End-of-Support for OSs
-
Image Creation
- General Creation FAQs
- Full-ECS Image FAQs
- How Can I Use a Backup to Create an EVS Disk or ECS?
- Is There Any Difference Between the Image Created from a CSBS/CBR Backup and That Created from an ECS?
- Why Can't I Find an ISO Image When I Want to Use It to Create an ECS or Change the OS of an ECS?
- How Do I Create a Full-ECS Image Using an ECS That Has a Spanned Volume?
- Why Is Sysprep Required for Creating a Private Image from a Windows ECS?
- How Do I Handle the Startup Failure of a Windows ECS Created from a Windows Image Generalized by Sysprep?
- What Do I Do If I Cannot Create an Image in ZVHD2 Format Using an API?
- Image Sharing
- OS
-
Image Import
- Can I Use Images in Formats not Described in This Document?
- What Are the Impacts If I Do Not Pre-configure an ECS Used to Create a Private Image?
- How Do I Import an OVF or OVA File to the Cloud Platform?
- What Do I Do If I Chose the Wrong OS or System Disk Capacity When Registering a Private Image?
- Why Did My VHD Upload Fail? Why Does the System Say the System Disk in the VHD Image File Is Larger Than What I Specified on the Management Console?
-
Image Export
- Can I Download My Private Images to a Local PC?
- Can I Use the System Disk Image of an ECS on a BMS After I Export It from the Cloud Platform?
- Why Is the Image Size in an OBS Bucket Different from That Displayed in IMS?
- Can I Download a Public Image to My PC?
- What Are the Differences Between Import/Export and Fast Import/Export?
- Why the Export Option Is Unavailable for My Image?
-
Image Optimization
- Must I Install Guest OS Drivers on an ECS?
- Why Do I Need to Install and Update VirtIO Drivers for Windows?
- What Will the System Do to an Image File When I Use the File to Register a Private Image?
- How Do I Configure an ECS, a BMS, or an Image File Before I Use It to Create an Image?
- What Do I Do If a Windows Image File Is Not Pre-Configured When I Use It to Register a Private Image?
- What Do I Do If a Linux Image File Is Not Pre-Configured When I Use It to Register a Private Image?
- How Do I Enable NIC Multi-Queue for an Image?
- How Do I Configure an ECS to Use DHCPv6?
- How Do I Clean Up the Disk Space of a Windows ECS?
- How Do I Make a System Disk Image Support Fast ECS Creation?
- Why Did I Fail to Install Guest OS Drivers on a Windows ECS?
- How Do I Install Native Xen and KVM Drivers?
- Image Replication
- Image Deletion
- Image Encryption
- Accounts and Permissions
- Cloud-Init
-
ECS Creation
- Can I Change the Image of a Purchased ECS?
- Can I Change the Specifications Defined by a Private Image When I Use the Image to Create an ECS?
- Can I Specify the System Disk Capacity When I Create an ECS Using an Image?
- What Do I Do If a Partition Is Not Found During the Startup of an ECS Created from an Imported Private Image?
- What Do I Do If the Disks of a CentOS ECS Created from an Image Cannot Be Found?
- What Do I Do If I Enabled Automatic Configuration During Image Registration for an ECS Created from a Windows Image and Now It Won't Start?
- What Do I Do If an Exception Occurs When I Start an ECS Created from an Image Using UEFI Boot?
- Billing
-
Image Consulting
- Videos
Overview
Public images provided by Huawei Cloud can be used with ECSs or BMSs and come with a set of basic plug-ins preinstalled. These images are available to all users and cover most mainstream OSs. This section describes the types and characteristics of public images.
Public Image Types
Public images include Huawei-developed Huawei Cloud EulerOS and EulerOS images and third-party commercial images. Choose whichever public image best meeting your needs. If you have any OS issues, you can contact the OS vendor or go to the open-source community for technical support, but Huawei Cloud also provides technical assistance.
For more information, see Differences Between openEuler, EulerOS, and Huawei Cloud EulerOS.
Image Type |
Description |
---|---|
Huawei Cloud EulerOS |
is an openEuler-based cloud operating system. offers cloud native, high-performing, secure, and easy-to-migrate capabilities. This accelerates service migration to the cloud and promotes application innovation. You can use to replace operating systems such as CentOS and EulerOS. |
EulerOS |
EulerOS is an enterprise-class commercial Linux distribution. It features high security, scalability, and performance, meeting customers' requirements for IT infrastructure and cloud computing services. EulerOS is internally used by Huawei and is not open source. |
Third-party commercial image |
Huawei Cloud rigorously tests, creates, and releases licensed third-party images that are highly secure and stable. Third-party public images include: Ubuntu and CentOS |
The available image OSs vary depending on server flavors:
Public Image Characteristics
- OS types: Linux OSs that are updated and maintained periodically
- Supported software: Public images contain some plug-ins on which server networks and basic functions depend.
NOTE:
The plug-ins that come with public images are necessary for ECSs or BMSs to run properly. Do not delete or modify any of them. Otherwise, basic functions of your ECSs or BMSs will be affected.
Table 2 Supported software Software
Description
Cloud-Init or Cloudbase-Init
Cloud-Init is an open-source cloud initialization tool. It is essentially a series of Python scripts and components. When creating a cloud server using an image that has Cloud-Init installed, you can inject custom details (such as the login password for the cloud server). You can also query and use metadata to configure and manage cloud servers.
By default, Cloud-Init is installed for Linux public images.
One-click password reset plugin
ECS and BMS provide a one-click password reset function. If you forget the password of your ECS or BMS, or the password expires, you can set a new password from the management console using the one-click password reset plug-in.
This plug-in is installed for public images by default.
NIC multi-queue plug-in
NIC multi-queue enables multiple vCPUs to process NIC interrupts, thereby improving network PPS and I/O performance.
For details about the public images that support NIC multi-queue, see How Do I Set NIC Multi-Queue for an Image?
- Compatibility: Public images are compatible with different server hardware.
- Security: Public images are stable and licensed.
Differences Between openEuler, EulerOS, and Huawei Cloud EulerOS
- openEuler was initially developed by Huawei, but it was donated to the OpenAtom Foundation on November 9, 2021. Now, it is an open-source, free OS.
- EulerOS is a free enterprise-class Linux OS developed by Huawei. It will be replaced by Huawei Cloud EulerOS.
- Huawei Cloud EulerOS is developed based on openEuler. It was commercially released in 2022 and will replace CentOS and EulerOS. Currently, Huawei Cloud EulerOS images are free of charge.
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