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How Do I Configure an ECS, a BMS, or an Image File Before I Use It to Create an Image?

ECS or Image File Configurations

Table 1 ECS configurations

OS	Configuration	Reference
Windows	Configure DHCP. Enable remote desktop connection. (Optional) Install special Windows drivers. (Optional) Install Cloudbase-Init. Install Guest OS drivers (VirtIO drivers). Run Sysprep.	Creating a System Disk Image from a Windows ECS
Linux	Configure DHCP. (Optional) Install special Linux drivers. (Optional) Install Cloud-Init. Delete files from the network rule directory. Change disk identifiers in the GRUB file to UUID. Change disk identifiers in the fstab file to UUID. Install native KVM drivers. Detach data disks from the ECS. Configure console logging.	Creating a System Disk Image from a Linux ECS

Table 2 Image file configurations

OS	Configuration	Reference
Windows	Configure DHCP. Enable remote desktop connection. Install Guest OS drivers (VirtIO drivers). (Optional) Install Cloudbase-Init. (Optional) Enable NIC multi-queue.	Preparing an Image File
Linux	Delete files from the network rule directory. Configure DHCP. Install native KVM drivers. Change disk identifiers in the GRUB file to UUID. Change disk identifiers in the fstab file to UUID. Delete the automatic mount configuration of non-system disks from the /etc/fstab file. (Optional) Install Cloud-Init. (Optional) Enable NIC multi-queue.	Preparing an Image File

• When registering an external image file as a private image, you are advised to perform the preceding operations on the VM where the external image file is located.
• When registering a Windows external image file as a private image, if the Guest OS drivers are installed, the cloud platform will check the image file after you select Enable automatic configuration. If the GuestOS drivers are not installed, the cloud platform will try to install them.

BMS or Image File Configurations

Table 3 BMS configurations

OS	Configuration	Reference
Windows	Install the bms-network-config package. Install Cloudbase-Init. Delete residual files from the OS.	"Creating a Private Image from a BMS" in Bare Metal Server User Guide
Linux	Install software in the bms-network-config package. Install Cloud-Init. Delete residual files from the OS.	"Creating a Private Image from a BMS" in Bare Metal Server User Guide

Table 4 Image file configurations

OS	Configuration	Reference
Windows	Install drivers for x86 V5 BMSs. Install Cloudbase-Init. Install software in the bms-network-config package. (Optional) Install the SDI iNIC driver. Set the Windows time zone. Set the virtual memory. (Optional) Configure automatic Windows update. Configure SID.	Bare Metal Server Image Creation Guide
Linux	Install and configure Cloud-Init. Modify the hardware device driver that boots the OS. Install software in the bms-network-config package. (Optional) Install the SDI iNIC driver. (Optional) Install the Hi1822 NIC driver. (Optional) Install the IB driver. (Optional) Install drivers for x86 V5 BMSs. (Optional) Install the UltraPath software. Perform security configuration. Configure remote login to the BMS. Configure automatic root partition expansion.	Bare Metal Server Image Creation Guide

Parent topic: Image Optimization