GUI-based Installation of Guest OS Failed on KVM

Symptom

The message "X startup failed, falling back to text mode" is displayed when the guest OS is installed on the KVM based on the GUI.

Key Process and Cause Analysis

Currently, a VM running on AArch64 supports only VirtIO graphics cards. To support graphics, you need to add a VirtIO video device, VNC graphics device, VirtIO keyboard, VirtIO tablet, and generic USB keyboard to the VM.

Conclusion and Solution

1. Select Customize configuration before install when creating a VM.

   

2. In the displayed window, click Add Hardware.

   

3. In the displayed window, select Input, select Generic USB Keyboard from the drop-down list, and click Finish.

   

4. Select Input, select Virtio Keyboard from the drop-down list, and click Finish.

   

5. Select Input, select Virtio Tablet from the drop-down list, and click Finish.

   

6. Select Graphics, select VNC server from the Type drop-down list, and click Finish.

   

7. Select Video, select Virtio from the Model drop-down list, and click Finish.

   

8. Click Begin Installation.