Huawei Cloud EulerOS
Huawei Cloud EulerOS
- Product Bulletin
- Service Overview
-
User Guide
- Usage Overview
- Selecting HCE as the Public Image When Creating an ECS
- Changing an OS to HCE
- Migrating an OS
- Upgrading HCE and RPM Packages
- Security Updates for HCE
- Obtaining the openEuler Extended Software Packages
- Creating a Docker Image and Starting a Container
- Tools
- Kernel Functions and Interfaces
- xGPU
- Configuring the Repositories and Installing Software for HCE
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FAQs
- What Do I Do If CentOS Linux Is No Longer Maintained?
- Does Huawei Cloud Have a Migration Solution for CentOS?
- How Do I Install the MLNX Driver?
- How Do I Enable SELinux on an ECS Running HCE?
- How Do I Change the OS Name on the Console After the OS Is Migrated?
- How Are Huawei Cloud EulerOS, EulerOS, and openEuler Different from One Another?
- How Do I Enable WireGuard in Kernel and Install wireguard-tools?
- How Do I Save the User Credential Information for Logging In to Docker Like What Docker CE Does?
- What Is OOM? Why Does OOM Occur?
- How Do I Handle IPVS Errors?
- Why Can't HCE Obtain an IPv6 Address After IPv6 Is Enabled for an ECS?
- How Do I Set Auto Log Using TMOUT?
- Best Practices
- General Reference
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Help Center/
Huawei Cloud EulerOS/
User Guide/
Migrating an OS/
Migrating an OS to HCE 2.0/
Constraints
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Constraints
- Migration is only supported for public images for ECSs listed in the Supported Instance Types.
- During the OS migration, RPM packages need to be uninstalled, installed, and updated. As a result, the OS may restart unexpectedly. Back up the system disk before the OS migration. For details, see Creating a Cloud Server Backup.
- The remaining OS memory should be greater than 128 MB, the remaining system disk space (required for running the migration tool) be greater than 5 GB, and the available space of the boot partition be greater than 200 MB.
- The name of a customized RPM package must be different from that of the OS RPM package. Otherwise, the custom RPM package will be deleted by the migration tool during the migration.
- After the OS migration, the system disk type cannot be changed.
- During OS migration, certain conflicting packages are generated in the system to be migrated. They will be automatically deleted after the OS migration. For details about the conflicting packages, see Conflicting Packages.
- DNF is used during system migration. If the version of the original DNF is too early, the upgrade will be affected. You can uninstall DNF from the original OS.
Parent topic: Migrating an OS to HCE 2.0
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