fuel-docs/userdocs/fuel-user-guide/maintain-environment/reinstall-virtual-role.rst

Reinstall a virtual role

If you have the Reduced Footprint feature enabled, you may need to reinstall the virtual role.

To reinstall a virtual role:

1. Log in to the Fuel Master node CLI.

2. Download the information about disks:

   fuel node --node-id <NODE_ID> --disk --download

   where <NODE_ID> points to the node with virt role identified by its ID (a number) that you can get by issuing the fuel nodes command.

   Example:

   fuel node --node-id 1 --disk --download

3. Open the /root/node_1/disks.yaml file for editing.

4. Enable the partition preservation of the volume with vm name by setting its keep_data flag to true. All partitions with the same name need to have the same flag value.

   Example:

   - extra:
     - disk/by-id/wwn-0x5000c5007a287855
     - disk/by-id/scsi-SATA_ST2000DM001-1ER_Z4Z1WH2V
     - disk/by-id/ata-ST2000DM001-1ER164_Z4Z1WH2V
     id: disk/by-path/pci-0000:00:1f.2-scsi-0:0:0:0
     name: sda
     size: 1907037
     volumes:
     - keep_data: false
       name: os
       size: 67584
     - keep_data: false
       name: cinder
       size: 919726
     - keep_data: true
       name: vm
       size: 919727
   
   where <NODE_ID> points to a specific node identified by its ID (a number)
   that you can get by issuing the ``fuel nodes`` command.

5. Upload the modified file:

   fuel node --node-id <NODE_ID> --disk --upload

   Example:

   fuel node --node-id 1 --disk --upload

6. Reprovision the node:

   fuel node --node-id <NODE_ID> --provision

   Example:

   fuel node --node-id 1 --provision

7. Provision the bare-metal node with the virtual role and spawn virtual machines:

   fuel2 env spawn-vms <CLUSTER_ID>

   Example:

   fuel2 env spawn-vms 1

8. Redeploy the spawned node:

   fuel node --node-id <NODE_ID> --deploy