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- What's New
- Function Overview
- Service Overview
- Getting Started
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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
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Native OpenStack APIs
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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)
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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
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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
What Do I Do If a Windows Image File Is Not Pre-Configured When I Use It to Register a Private Image?
If an image file is not configured as instructed in Preparing an Image File (Windows) before it is exported from the original platform, you can use it to create an ECS, configure the ECS, and use the ECS to create a private image. Figure 1 shows the process.
An ECS can run properly only after Xen Guest OS drivers (PV drivers) and KVM Guest OS drivers (VirtIO drivers) are installed on it. Without these drivers, the performance of this ECS will be affected and some functions will be unavailable. Ensure that the drivers have been installed for the image file before it is exported from the original platform. Otherwise, the ECSs created from the image will fail to start.
- To install PV drivers, see Installing PV Drivers.
- To install VirtIO drivers, see Installing VirtIO Drivers.
Step 1: Upload the Image File
Upload the external image file to an OBS bucket. For details, see Uploading an Image File (Windows).
Step 2 Register the Image File as a Private Image
On the management console, select the uploaded image file and register it as a private image. For details, see Registering an External Image File as a Private Image (Windows).
Step 3: Create an ECS
- Access the IMS console.
- Log in to the management console.
- Under Compute, click Image Management Service.
The IMS console is displayed.
- Click the Private Images tab.
- Locate the row that contains the private image and click Apply for Server in the Operation column.
- Set parameters as promoted to create an ECS. Note that:
- You are advised to select Pay-per-use for Billing Mode because the ECS will be deleted when you are finished with it.
- Bind an EIP to the ECS so that you can upload installation packages to the ECS or download them from the ECS.
- You must add inbound rules for the ECS security groups to ensure that the ECS can be accessed.
- If the image file has Cloudbase-Init installed, set a password and log in to the ECS using the password when prompted. If Cloudbase-Init is not installed, use the password or certificate contained in the image file to log in the ECS.
For details, see Purchasing an ECS.
- Check the ECS to see if the private image used to create the ECS has been pre-configured.
- Check whether the ECS can be successfully started. If it can, Guest OS drivers have been installed for the image file on the original platform or the drivers have been automatically installed for the private image on the cloud platform. If the ECS cannot start up, install Guest OS drivers for the image file on the original platform and go back to Step 1: Upload the Image File.
- Check whether you can log in to the ECS using your configured password or key. If you can, Cloudbase-Init has been installed. If you cannot, use the password or key contained in the image file to log in to the ECS and install Cloudbase-Init as instructed in Installing and Configuring Cloudbase-Init.
- Check whether DHCP is configured by referring to 2 in Step 4: Configure the ECS.
- Use MSTSC to log in to the ECS. If the login fails, enable remote desktop connection by referring to 3 in Step 4: Configure the ECS.
If the ECS meets the preceding requirements, the private image has been pre-configured. Skip Step 4: Configure the ECS and Step 5: Create a Private Image from the ECS.
Step 4: Configure the ECS
Remotely log in to the ECS created in Step 3: Create an ECS to configure it.
- Log in to the ECS.
- Check whether DHCP is configured. If the ECS is configured with a static IP address, change its IP address assignment mode to DHCP as instructed in Configuring DHCP.
- Enable remote desktop connection for the ECS as needed. For details about how to enable this function, see Enabling Remote Desktop Connection.
- (Optional) Configure value-added functions.
- Install and configure Cloudbase-Init. For details, see Installing and Configuring Cloudbase-Init.
- Enable NIC multi-queue. For details, see How Do I Enable NIC Multi-Queue for an Image?
- Configure an IPv6 address. For details, see How Do I Configure an ECS to Use DHCPv6?
Step 5: Create a Private Image from the ECS
For details, see Creating a System Disk Image from a Windows ECS.
(Optional) Clear the Environment
After the image registration is complete, delete the image file as well as the intermediate private image and ECS to avoid generating any additional charges.
- Delete the image registered in Step 2 Register the Image File as a Private Image.
- Delete the ECS created in Step 3: Create an ECS.
- Delete the image file from the OBS bucket.
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