Remove a Previous CSO Deployment

You can remove a previous deployment and install a new version of CSO.

If you do not have previous deployment, proceed with Provision VMs on Contrail Service Orchestration Servers.

1. Remove the VMs on the physical server.
   1. Log in to the CSO server as a root user.
   2. View the list of VMs.
      root@host:~/# virsh list --all

      Output:
   3. Remove each VM and its contents.
      root@host:~/# virsh destroy <vm-name>

      root@host:~/# virsh undefine <vm-name>
   4. Delete the Ubuntu source directories and the Ubuntu VM.
      root@host:~/# rm -rf /root/disks

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

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

      root@host:~/# rm -rf <vm-name>
2. Delete the old Salt minion keys.
   root@host:~/# salt-key -D
3. Clear the Ubuntu cache.
   root@host:~/# clear ubuntu cache $ sync && echo 1 | sudo tee /proc/sys/vm/drop_caches