Step 2: Install the N-able N-central server upgrade

During the OS upgrade to AlmaLinux, you need to disable UEFI Secure Boot. After the upgrade, re-enable UEFI Secure Boot where possible (some cloud services do not currently support UEFI Secure Boot).

You can upgrade N-central by installing the upgrade file downloaded to your N-able N-central server or from N-ableMe. The upgrade method depends on the installed N-central version:

  • Version 2025.4 and later.

  • Versions earlier than 2025.4

Version 2025.4 and later

  1. Sign in using a Product Admin account.
  2. Go to System Settings > N-central Server > Version Management.
  3. In Notify this email address when complete, enter the email address to receive upgrade notifications.
  4. Choose one of the following options:
    • Select upgrade file on the server: Select a version from the available upgrade files on the server.
    • Upload upgrade file to the server: Upload a .nsp file from your local machine.
  5. Select Upgrade

Versions earlier than 2025.4

  1. Log into the N-able N-central Administration Console using one of the following URLs:
    • https://<Your Server Address>/admin
    • https://<Your Server Address>:10000/
  2. In the Administrator Console, under Setup, select Version Management.
  3. Choose one of the following options:
    • N-central Direct upgrade
      1. Select Install upgrade from local repository
      2. Select an upgrade version from the list.
    • Remote upgrade from download location
      1. Select Install upgrade remotely.
      2. Select Browse, and navigate to the .nsp file in N-ableMe.
  4. Enter an e-mail address in the Notify this email address when complete field.
  5. Select Install.
  6. Click Confirm to begin the installation.

The N-able N-central Web UI and services will be stopped and the upgrade applied.

If using a remote upgrade option, the .nsp file begins uploading to the N-centralserver.

To avoid upload timeouts on slow connections, upload the file from a machine on the same local network as the N-central server.

When installing from the local repository or after the upload completes, the upgrade file is extracted on the N-central server. This process can take several minutes.

You can monitor the progress of the N-able N-central upgrade from the server console.

Do not reboot the N-able N-central server during the upgrade process even if it appears unresponsive.

To continue, proceed to Step 3: Complete post-installation steps.