docs/doc/source/deploy_install_guides/r5_release/bare_metal/reinstalling-a-system-using-an-exported-host-configuration-file.rst

Reinstall a System Using an Exported Host Configuration File

You can reinstall a system using the host configuration file that is generated using the host-bulk-export command.

For the following procedure, controller-0 must be the active controller.

1. Create a host configuration file using the system host-bulk-export command, as described in Exporting Host Configurations <exporting-host-configurations>.
2. Copy the host configuration file to a USB drive or somewhere off the controller hard disk.
3. Edit the host configuration file as needed, for example to specify power-on or information.
4. Delete all the hosts except controller-0 from the inventory.
5. Reinstall the software on controller-0, which must be the active controller.
6. Run Ansible Bootstrap playbook.
7. Follow the instructions for using the system host-bulk-add command, as detailed in Adding Hosts in Bulk <adding-hosts-in-bulk>.

After adding the host, you must provision it according to the requirements of the personality.