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

Additional capabilities

Updated: June 29, 2026

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Explains the supplementary features and functionalities available beyond the core system capabilities to extend and enhance operational performance.

Recover a Cisco CUCM application using a recovery ISO

This task allows you to recover or repair a Cisco CUCM application when the virtual machine requires restoration from a corrupted or damaged state.

Use this procedure when a Cisco CUCM application needs recovery or repair. The process involves using recovery ISO media to restore the application to a functional state through the NFVIS portal interface.

Before you begin

Ensure you have access to the NFVIS portal and the appropriate recovery ISO file for your CUCM application version.

Follow these steps to recover a Cisco CUCM application using a recovery ISO:

Procedure

1.

From the NFVIS portal, click Configuration > Virtual Machine > Images > Image Repository.
2.

Upload the Recovery ISO.

If the Recovery ISO registration is not allowed, upload the respective VM OVA as well and register it.

Name the image descriptively. Example: CUCM-15-recovery-ISO.
3.

Shut down the VM.

  1. Click Configuration > Virtual Machine > Manage.

  2. Select the VM.

  3. Click Switch Power to shut down the VM.

    Wait for the VM state to move to a SHUTDOWN state.
4.

Attach the Recovery ISO to the CD-ROM.

  1. With the VM in the SHUTDOWN state, click the CD-ROM button.

  2. Click ATTACH.

  3. Select the Recovery ISO from the drop-down list.

  4. Click Submit.

    The Recovery ISO is now attached to the VM.
5.

Power on and boot from the Recovery ISO.

  1. Click Switch Power to start the VM.

  2. Click Terminal to access the console.

  3. Enter the Boot Menu by pressing the appropriate key during startup (typically F12 or ESC).

  4. Select the Recovery ISO device from the boot menu.

    The VM boots from the Recovery ISO.

  5. Follow the application-specific recovery procedure.

    This step involves interacting with the application's recovery prompts via the console.
6.

Detach the CD-ROM after recovery.

  1. Shut down the VM.

  2. Click the CD-ROM button.

  3. Select the DETACH action.

  4. Select the Recovery ISO disk.

  5. Click Submit.
7.

Power on the VM for normal operation.

The Cisco CUCM application is recovered and restored to a functional state. The VM boots normally and the application is ready for use.

Recover the password for a Cisco CUCM application

Use this procedure to reset the password for a Cisco CUCM application while the VM is in an active state.

Cisco NFVIS allows you to eject and insert ISO media, which is a required step in the password recovery process for CUCM applications. This procedure covers only the NFVIS media operations. For the complete application-specific password recovery procedure, refer to the Reset or Change CUCM OS Admin and Security Password guide in the official CUCM documentation.

Before you begin

Follow these steps to recover the password for a Cisco CUCM application:

Procedure

1.

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

Verify the VM state.

Ensure the VM is running and in an ACTIVE state as password recovery is performed on a running VM.
3.

Eject the current ISO.

  1. Select the VM.

  2. Click the CD-ROM button.

  3. Select Eject.

  4. Select the ISO image to eject.

  5. Click Submit.
4.

Insert the required ISO.

  1. Click the CD-ROM button.

  2. Select Insert.

  3. Select the required ISO from the drop-down list.

  4. Select the appropriate Device ID for the CD-ROM.

  5. Click Submit.
5.

Complete the password recovery.

  1. Access the VM console by clicking the Terminal button.

  2. Follow the application-specific password recovery steps provided in the CUCM documentation.

The ISO media is successfully swapped, and the application-specific password recovery process is initiated.

What to do next

Refer to the official CUCM documentation for any final application-specific configuration steps required after the password reset.