> ## Documentation Index
> Fetch the complete documentation index at: https://docs.phala.com/llms.txt
> Use this file to discover all available pages before exploring further.

> View CVM boot and QEMU logs from the Phala Cloud dashboard.

# Serial Logs

VM logs show the CVM boot process and host-side QEMU output. Use them to diagnose startup failures, image download problems, and system initialization errors.

## View VM logs

The log viewer opens from the **Logs** button in the upper-right corner of the CVM detail-page header.

<Frame caption="Logs in the CVM detail-page header">
  <img src="https://mintcdn.com/phalanetwork-1606097b/BV6eYrfe2po64O93/images/cloud-log-entry.png?fit=max&auto=format&n=BV6eYrfe2po64O93&q=85&s=b4c90f7ac380c1bb5af8bee6ef7dbb64" alt="CVM detail-page header with the Logs button highlighted in the upper-right corner" width="820" height="105" data-path="images/cloud-log-entry.png" />
</Frame>

1. Open your app in the [Phala Cloud dashboard](https://cloud.phala.com), then open the CVM instance.
2. Click **Logs** in the CVM detail-page header.
3. Under **VM Logs**, select a log source:

   * **Kernel serial output** shows the CVM boot and system console output.
   * **qemu output** shows standard output from the QEMU process.
   * **qemu stderr** shows errors written by the QEMU process.

The log drawer switches to the selected source. Use **Auto-scroll** to follow new output or open the toolbar menu and click **Retry Connection** if the stream disconnects.

<Frame caption="Kernel serial output in the CVM log drawer">
  <img src="https://mintcdn.com/phalanetwork-1606097b/BV6eYrfe2po64O93/images/cloud-cvm-log.png?fit=max&auto=format&n=BV6eYrfe2po64O93&q=85&s=ef0ec3f60b89a1c79908b9becce36c99" alt="CVM log drawer with VM Logs expanded, Kernel serial selected, and boot output streaming" width="820" height="403" data-path="images/cloud-cvm-log.png" />
</Frame>

## View application logs

VM logs describe the CVM and its boot process. To inspect output written by your application, select a container under **Docker Containers** instead. See [View and share Docker container logs](/phala-cloud/monitoring/public-logs) for the complete procedure and visibility controls.