Removing a Previous Deployment

You can remove the existing virtual machines (VMs) and perform a completely new installation. This approach makes sense if the architecture of the VMs on the Contrail Service Orchestration node or server has changed significantly between releases.

1. Remove VMs on the physical server.
   1. Log in to the CSO node or server as root.
   2. View the list of VMs.

      For example:

      root@host:~/# virsh list --all

      This command lists the existing VMs.
   3. Remove each VM and its contents.

      For example:

      root@host:~/# virsh destroy csp-ui-vm

      root@host:~/# virsh undefine csp-ui-vm

      Where, csp-ui-vm is the name of VM you want to delete.

   4. Delete the Ubuntu source directories and VM.

      For example:

      root@host:~/# rm -rf /root/disks

      root@host:~/# rm -rf /root/disks_can

      root@host:~/# cd /root/ubuntu_vm

      root@host:~/# rm -rf
2. Delete the Salt server keys.

   For example:

   root@host:~/# salt-key -D