How to change a boot disk for a VM instance running on GCP

Question

I want to detach the existing boot disk and attach a new boot disk to my VM instance. How to do this?

Answer 1

In the GCP Console only, you can update the boot disk for a VM in one step.

This feature is only available in the console and is not available using the gcloud tool or through the API.

1. Go to the VM instances page.

2. If prompted, select your project and click Continue.

3. Click on the instance for which you want to attach the boot disk.

4. If the VM instance is not already stopped, click Stop at the top of the page.

5. Next, click the Edit button at the top of the page.

6. Scroll down to the Boot Disk section.

7. Click X next to the current boot disk.

8. Click Add item.

9. Select a boot disk from the dropdown menu.

10. Save your changes.

The console will proceed to detach your existing booth disk and attach the new boot disk that you specified.

Restart the instance once the process is complete.