Cisco Network Function Virtualization Infrastructure Software Configuration Guide, Release 26.2 and Later

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Cisco Network Function Virtualization Infrastructure Software Configuration Guide, Release 26.2 and Later

Configure Day-N CD-ROM attach-detach workflow

Updated: June 29, 2026

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Configure CD-ROM attach and detach functions for virtual machines using the NFVIS portal.

This task allows you to attach and detach CD-ROM images to virtual machines, enabling you to boot from recovery ISOs or remove existing disks as needed.

CD-ROM attach and detach operations require the VM to be in Shut Off State. The attachment process involves registering the Recovery ISO and then attaching it to the desired VM through the CD-ROM action.

Before you begin

The VM must be in Shut Off State to perform CD-ROM attach and detach functions. The attachment process consists of two steps: first, register the Recovery ISO using the existing image registration workflow; then, navigate to the CD-ROM action for the desired VM to attach the registered ISO.

Follow these steps to attach and detach CD-ROM images:

Procedure

1.

From the NFVIS portal, choose Configuration > Virtual Machine > Manage.
2.

Click the CD-ROM icon.

The Attach and Detach options are displayed.
3.

Select the Recovery ISO from the image dropdown.
4.

Click Submit.

Note

To use this Recovery ISO, you need to start the VM and then enter the Boot menu through the terminal Action button.

A pop-up notification will appear in the top-right corner confirming that the CD-ROM is attached.
5.

In the boot menu, select the CD-ROM option.

The system will then boot from the Recovery ISO.
6.

To detach a CD-ROM, select the disk you wish to detach from the Disks dropdown menu and click Submit.

The Detach option allows you to remove existing disks.

A confirmation alert will appear in the top-right corner upon successful detachment. You can confirm the detachment by checking the Disks drop-down menu.

You have successfully configured the CD-ROM attach-detach workflow. The VM can now boot from the attached Recovery ISO, or you have successfully detached the CD-ROM as needed.

Shut down a Virtual Machine

Use this procedure to shut down a Virtual Machine (VM) gracefully to ensure data integrity and proper system state management.

Procedure

1.

To perform a graceful shutdown when needed, navigate to Configuration > Virtual Machine > Manage.
2.

In the Action column, select Switch Power.
3.

Select the Graceful Shutdown checkbox to initiate the process.

The Graceful Shutdown process has a 20-minute timeout. If the VM does not shut down gracefully within this period, it will enter an Error state. If this occurs, you have the option to perform a Forceful Shutdown to power off the VM.

The VM initiates the graceful shutdown process. If successful, the VM powers off and its status updates to reflect that it is no longer active. If the shutdown does not complete within the 20-minute timeout period, the VM enters an Error state, at which point you must perform a Forceful Shutdown to power off the VM.