- 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
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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
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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
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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
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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?
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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?
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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
Scenario 1: Creating a System Disk Image from a Windows ECS
If you have created and configured an ECS based on your service requirements (such as installing software and deploying an application environment), you can create a system disk image from the configured ECS. Then, any new ECSs created from this image will come with all the same software and other details preconfigured.
This guide describes how to create a system disk image from a Windows ECS.
Step 1: Preparations
- Log in to the management console. In the service list, choose Compute > Elastic Cloud Server.
- Locate the target ECS and click Remote Login.
- Perform the following operations on the ECS:
- Delete sensitive data from the ECS to prevent data leaks.
- Check the network configuration of the ECS and ensure that DHCP is configured for the ECS NICs. Enable remote desktop connection if needed. For details, see Setting the NIC to DHCP and Enabling Remote Desktop Connection.
- Check whether Cloudbase-Init has been installed in the ECS. After Cloudbase-Init is installed, user data can be injected into the new ECSs created from the image of this ECS. For example, you can use data injection to set the password of a new ECS. For details, see Installing and Configuring Cloudbase-Init.
- Check and install PV and VirtIO drivers in the ECS so that the new ECSs created from the image of this ECS support both KVM and XEN virtualization and that the network performance will be improved. For details, see Installing PV Drivers and Installing VirtIO Drivers.
- Run Sysprep on the ECS so that each of the new ECSs created from the image of this ECS has a unique SID in a domain. In a cluster, each ECS must have a unique SID. For details, see Running Sysprep.
Step 2: Create a Windows System Disk Image
- Select the ECS and in the Operation column choose More > Manage Image > Create Image.
- In the Image Type and Source area, select Create Image for Type and System disk image for Image Type.
- In the Image Information area, enter basic information about the image, such as the image name, enterprise project, and any tags you want to add.
- Read and agree to the image disclaimer. Click Next.
- Confirm the parameter settings and click Submit.
- Go back to the private image list and view the image status.
NOTE:
The time required for creating an image depends on the image file size, network status, and number of concurrent tasks. When the image status changes to Normal, the image is created successfully.
Follow-up Procedure
After a system disk image is created, you can use it to create an ECS or change the OS of an existing ECS. This way, you can migrate data from a server to another. For details, see:
For more information, see Creating a System Disk Image from a Windows ECS.
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