Preparing an Image File
You need to prepare an image file that meets the platform requirements.
- You are advised to complete the network, tool, and driver configurations in Table 1 on the source VM and then export the image file. You can also complete the configurations on the created ECSs. For details, see What Do I Do If a Windows Image File Is Not Pre-Configured When I Use It to Register a Private Image?
- Currently, a large image file (maximum: 1 TB) can be imported only in RAW or ZVHD2 format. In addition to the requirements described in Table 1, a bitmap file needs to be generated for each RAW image file. The bitmap file is uploaded together with the image file. For details, see Quickly Importing an Image File.
Image File Property |
Requirement |
---|---|
OS |
For details about the supported OS versions, see External Image File Formats and Supported OSs. These OSs support automatic configuration. For details, see What Will the System Do to an Image File When I Use the File to Register a Private Image? For other OSs, check and install the Guest OS driver. On the image registration page, select Other Windows. After the image is imported, whether the system is started depends on the driver integrity. |
Image format |
VMDK, VHD, QCOW2, RAW, VHDX, QED, VDI, QCOW, ZVHD2, and ZVHD |
Image size |
Maximum file size: 128 GB
If the image size is between 128 GB and 1 TB, convert the image file into the RAW or ZVHD2 format and import the image using fast import.
|
Network |
The NIC must be set to DHCP. Otherwise, the ECS startup or network capability will be abnormal. For details, see: The following value-added operations are optional:
|
Tool |
You are advised to install Cloudbase-Init. Cloudbase-Init is an open-source tool for cloud instance initialization. When creating ECSs from an image with Cloudbase-Init, you can use user data injection to inject customized initialization details (for example, an ECS login password) to the ECSs. You can also configure and manage a running ECS by querying and using metadata. If Cloudbase-Init is not installed, you cannot apply custom configurations to the ECSs. You will have to use the original password in the image file to log in to the ECSs. For details, see Installing and Configuring Cloudbase-Init. |
Driver |
|
Other requirements |
|
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