Upgrading Dual-Disk Partitions on NFX250 NextGen and NFX350 Devices

You can upgrade the disk partitions on NFX250 NextGen and NFX350 devices by using:

• The request vmhost software add package-name command.

• The request system software add clean-install package-name command.

• The request system zeroize command.

• The USB image installation method.

Upgrading Disk Partitions Using the request vmhost software add package-name Command on an NFX350 Device

When you upgrade the disks using this method, the device retains all the configuration and log information.

To upgrade the disk partitions using the request vmhost software add package-name command:

1. Verify the initial status of the disks.

2. Upgrade the device with the Junos OS image version that supports the dual disk upgrade.

   When prompted for a reboot, type Yes.

3. After the device reboots, verify the status of the disk partitions. The output shows that the image on the alternate partition of disk 1 is upgraded. The alternate partition is the active partition now.

4. Upgrade the device again to upgrade the primary partition of disk 1.

   When prompted for a reboot, type Yes.

5. After the device reboots, verify the status of the disk partitions. The output shows that the image on the primary partition of disk 1 is upgraded. Both the primary and alternate partitions on disk 1 are running the same image. Note that the primary partition is the active partition now.

6. To upgrade the secondary disk, switch to the primary partition of disk 2.

   Note:

   Before you switch from disk 1 to disk 2, ensure that the required basic configuration (such as management connectivity) is available on disk 2.

7. After the device reboots, verify the status of the disk partitions.

8. Upgrade the device with the Junos OS image version that supports the dual disk upgrade.

9. Verify the status of the disk partitions after the upgrade. The output shows that the image on the alternate partition of disk 2 is upgraded. The alternate partition of disk 2 is the active partition now.

10. Upgrade the primary partition on disk 2.

11. Verify the status of the disk partitions after the upgrade. The output shows that the image on the primary partition of disk 2 is upgraded. Both the primary and alternate partitions on disk 2 are running the same image. The primary partition on disk 2 is the active partition now.

Upgrading Disk Partitions Using the request vmhost software add package-name Command on an NFX250 NextGen Device

When you upgrade the disks using this method, the device retains all the configuration and log information.

To upgrade the disk partitions using the request vmhost software add package-name command:

1. Upgrade the device with the Junos OS image version which supports the dual disk upgrade using the request vmhost software add package-name command.

   When prompted for a reboot, type Yes.

2. Verify the status of the disks. The output shows that the image on the alternate partition is upgraded. The alternate partition is the active partition now.

3. Upgrade the device again to upgrade the primary partition.

   When prompted for a reboot, type Yes.

4. After the reboot, verify the status of the disk partitions. The output shows that the image on the primary partition is upgraded. The primary and alternate partitions are now running the same image, Note that the primary partition is the active partition now.

Upgrading Disk Partitions Using the clean-install Command

This upgrade method resets all the log and configuration information, and loads the specified image on all the disk partitions.

To upgrade the disk partitions using the clean-install command:

1. Verify the initial status of the disks.

2. Upgrade the device by using the clean-install command.

3. Verify the disk details after the upgrade. The output shows that the image on all the disk partitions is upgraded.

Upgrading Disk Partitions Using the request system zeroize Command

This upgrade method resets all the log and configuration information, and loads the image running on the current active partition on all the other disk partitions.

To upgrade the disk partitions:

1. Remove all configuration information on the Routing Engines and reset all key values.

2. Verify the disk details. The output shows that the image on all the disk partitions is upgraded.

Upgrading Disk Partitions Using a USB

For information about upgrading the disk partitions using a USB, see KB31834.