What do I do if the "failed to download migration install sh" error message appears? - Server Migration Center

This topic describes the cause of the "failed to download migration install sh" error message that is reported when you use Server Migration Center (SMC) to migrate a Linux operating system. This topic also describes how to resolve the error.

Problem description

The "failed to download migration install sh" error message is reported when a Linux operating system is being migrated by using SMC.

Cause

An error occurs during the download of the migration script used to migrate the source server.

Solution

Check whether wget is installed on the source server to be migrated. If wget is not installed, run one of the following commands to install wget based on the operating system to be migrated:
- CentOS: yum -y install wget
- Ubuntu: apt-get -y install wget
- Debian: apt-get -y install wget
- SUSE: zypper install wget
- Other Linux distributions: For more information, see installation documentation of the Linux distribution.
Run the following command to download the migration script from Alibaba Cloud software repository by using its internal domain name http://mirrors.cloud.aliyuncs.com:
```
wget http://mirrors.cloud.aliyuncs.com/alinux/migration/aliyuncs-install.sh -O /tmp/aliyuncs-install.sh
```
If the download fails, check whether the source server is properly connected to a network.
After the error is resolved, run the SMC client and retry the migration job. For more information, see Run the SMC client.