Knowledge BaseTroubleshootingPassword cannot be changed online for an Ubuntu VM instance because qemu-guest-agent is outdated

Password cannot be changed online for an Ubuntu VM instance because qemu-guest-agent is outdated

TroubleshootingZCF · CloudVersions3.x-5.5.30Article IDKB-100195Updated2026-08-19

Issue/Introduction

This article describes how to troubleshoot an Ubuntu VM instance whose password cannot be changed online because qemu-guest-agent is outdated. It applies to the initial diagnosis and resolution of similar issues in ZStack Cloud.

Environment

  • Product: ZCF
  • Component: Cloud
  • Version: 3.x-5.5.30

Resolution

  1. Download the qemu-ga 2.5 offline DEB package.

To obtain the qemu-ga 2.5 offline DEB package, contact official technical support.

  1. Upload the package to /root on the VM instance.

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Password cannot be changed online for an Ubuntu VM instance because qemu-guest-agent is outdated | KB-100195 | ZStack Resource Center