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Server Migration Center

Migration Source tuning

Migrating Alibaba Cloud CentOS 6.x operating system instances to VolcanoEngine

Because the Alibaba Cloud CentOS 6.x operating system has a low rsync version, and the source server may have a static IP address configured, this will cause the migrated instance to fail to be pinged or logged into. Therefore, to migrate this specific type of Alibaba Cloud instances, additional configurations are required.

Prerequisites

Your VolcanoEngine platform account and migration source must meet the requirements in the Limits.

You have completed preparations.

Procedure

Step 1: Update rsync

Execute the following command to view the rsync version.

rsync --version

If the tool version is lower than 3.1.0, update rsync to 3.1.1 by following the steps below.

wget https://smc-beijing.tos-cn-beijing.volces.com/packages/linux/rsync-3.1.1-6cnt6.x86_64.rpm
rpm -ivh rsync-3.1.1-6cnt6.x86_64.rpm --replacefiles

If the version is 3.1.0 or higher, proceed with the subsequent steps.

Step 2: Migrate data

Select a migration method as needed and complete data migration by referring to Migration process overview.

Step 3: Adjust network configurations

If your source server is configured with a static IP address, follow the guide in this section to adjust the network configurations of the target instance (migration destination) after migration completes. This prevents the target instance from being unable to be pinged or logged in to.

After migration succeeds, use VNC to log in to the migration target instance. For operation details, see Logging in to Linux instances.

Execute the following command in the instance to obtain the HWaddr information (hardware address, which is the MAC address) of eth0.

ifconfig eth0

Sample output

Record the HWaddr value here.

Modify the eth0 network interface configuration.

Execute the following command to open the eth0 configuration file.

vim /etc/sysconfig/network-scripts/ifcfg-eth0

Press the i key to enter edit mode, and replace the HWADDR parameter value with the HWaddr value obtained in step 2.

Press the esc key, enter :wq, and press Enter to save and exit the file.

Modify the network file.

Execute the following command to open the eth0 configuration file.

vim /etc/sysconfig/network

Press the i key to enter edit mode, and delete GATEWAY and its value from the file.

Press the esc key, enter :wq, and press Enter to save and exit the file.

Execute the following command to restart the instance for the configuration to take effect.

reboot

Last updated: 2026.01.07 15:11:32