In addition to creating custom images, Tencent Cloud also allows you to import images. You can import an image file in the system disk of the local server or a server on another platform into CVM custom images. After an image is imported, you can use it to create a CVM or reinstall the operating system (OS) for an existing CVM.
Prepare an image file that meets import requirements in advance.
|File system||GPT partition is not supported|
|Kernel||The native kernel is preferred for an image. Any modifications on the kernel may cause a failure in importing the image into the CVM.|
|File system type|
|Driver||The Virtio driver of the visualization platform KVM must be installed for the image. The Virtio driver is not installed in the Windows OS by default. You can install the Virtio driver for Windows and then export the local image.|
|Others||Imported Windows images do not provide the Windows license activation service.|
You will be notified whether the import is successful through internal messages.
Ensure that the entered COS file URL is correct.
Images may fail to be imported in the console. If the import fails, troubleshoot as follows:
Before troubleshooting, ensure that you have subscribed to product service notifications on the message subscription page. This ensures that you can receive internal messages, SMS messages, and emails about the causes of the failure.
If you do not subscribe to product service notifications, you will not receive messages about the import result.
For more information on error messages and descriptions, see [Error Codes](# errorcode).
The InvalidUrl error indicates that an incorrect COS URL is entered on the import page. The possible causes include:
A COS file URL with the signature can be accessed only once.
The image import service accesses the COS server in the local region through a VPC instance.
The InvalidFormatSize error indicates that the format or size of the image to be imported does not meet the following requirements of the Tencent Cloud's image import feature:
After you receive an error message stating that the format or size is invalid:
The VirtioNotInstall error indicates that the image to be imported does not have the Virtio driver installed. Tencent Cloud uses the KVM virtualization technology and requires users to install the Virtio driver on the image to be imported. Except for a few customized Linux OSs, most Linux OSs have the Virtio driver installed. In Windows OSs, users need to manually install the Virtio driver:
The CloudInitNotInstalled error indicates that the image to be imported does not have the cloud-init program installed. Tencent Cloud uses the open-source cloud-init program to initialize the CVM. If the cloud-init program is not installed, the CVM will fail to be initialized.
The PartitionNotPresent error indicates that the imported image is incomplete. In this case, check whether the boot partition was included when the image was created.
The RootPartitionNotFound error indicates that the root partition cannot be detected in the image to be imported. In this case, check the image file. The possible causes include:
The InternalError error indicates that the image import service does not record the cause of the error. In this case, contact our customer service. Our technical personnel will help you resolve the issue as soon as possible.
|Error Code||Reason||Recommended Solution|
|InvalidUrl||The COS link is invalid.||Check whether the COS URL is the same as the imported image URL.|
|InvalidFormatSize||The format or size does not meet requirements.||Images need to meet the
|VirtioNotInstall||The Virtio driver is not installed.||Install the Virtio driver in the image by referring to the
|PartitionNotPresent||Partition information is not found.||The image is corrupted possibly due to an incorrect image creation method.|
|CloudInitNotInstalled||The cloud-init program is not installed.||Install cloud-init in the Linux image by referring to the
|RootPartitionNotFound||The root partition is not found.||The image is corrupted possibly due to an incorrect image creation method.|
|InternalError||An internal error other than the preceding ones occurs.||Contact our customer service.|