Help Center/ Cloud Server Backup Service/ Troubleshooting/ Failed to Download or Install the Agent Required by Application-Consistent
Updated on 2022-02-22 GMT+08:00

Failed to Download or Install the Agent Required by Application-Consistent

Symptom

The system displays a message indicating that the script cannot be downloaded or the Agent fails to be installed in Linux mode 2.

Possible Causes

  • Cause 1: The DNS cannot resolve the obs.myhuaweicloud.com domain name.
  • Cause 2: The OpenSSL version of the target ECS is too early.

Solution for Cause 1

Cause 1: The DNS cannot resolve the obs.myhuaweicloud.com domain name.

Manually change the DNS server address to a HUAWEI CLOUD private DNS server address. If the problem persists, try later or use the Linux mode 1 to install it.

Procedure (Linux)

  1. Log in to the ECS as user root.
  2. Run the vi /etc/resolv.conf command to edit the /etc/resolv.conf file. Add the DNS server IP address above the existing name server information, as shown in Figure 1.

    Figure 1 Configuring DNS

    The format is as follows:

  3. Press Esc, input :wq, and press Enter to save the changes and exit the vi editor.
  4. Run the following command to check whether the IP address is successfully added. If yes, the operation is complete.

    cat /etc/resolv.conf

Procedure (Windows)

  1. Go to the ECS page and log in to the ECS running Windows Server 2012.
  2. Click This PC in the lower left corner.
  3. On the page that is displayed, right-click Network and choose Properties from the drop-down list. The Network and Sharing Center page is displayed, as shown in Figure 2. Click Local Area Connection.

    Figure 2 Network and Sharing Center

  4. In the Activity area, select Properties. See Figure 3.

    Figure 3 Local area connection

  5. In the Local Area Connection Properties dialog box that is displayed, select Internet Protocol Version 4 (TCP/IPv4) and click Properties. See Figure 4.

    Figure 4 Local area connection properties

  6. In the dialog box that is displayed, select Use the following DNS server addresses: and configure DNS, as shown in Figure 5. After the configuration, click OK.

    Figure 5 Configuring DNS

Solution for Cause 2

Cause 2: The OpenSSL version of the target server is too early.

  1. Use a remote management tool (such as PuTTY or Xshell) to connect to your ECS through the elastic IP address.
  2. Select the Agent version based on your needs, copy the command of installation mode 2 to the server, and change https to http in wget. Run the changed command as the root user: