You can select a bootstrap image from the list of available bootstraps and activate it. The discovered nodes will be loaded with a new bootstrap after reboot.
To switch between bootstrap images:
Print the list of available bootstrap images:
# fuel-bootstrap list
System response
+--------------------------------------+--------------------------------------+--------+
| uuid                                 | label                                | status |
+--------------------------------------+--------------------------------------+--------+
| a778efad-88ca-41fe-b592-f02101c11d22 | bs1                                  |        |
| 244782c1-7343-43f7-9ee3-8989c252eb2e | bs2                                  | active |
| 2b7fe334-4ef7-4a9d-8fcb-e0d7cc009d0c | 2b7fe334-4ef7-4a9d-8fcb-e0d7cc009d0c |        |
| centos                               | deprecated                           |        |
+--------------------------------------+--------------------------------------+--------+
Activate a new bootstrap image:
# fuel-bootstrap activate a778efad-88ca-41fe-b592-f02101c11d22
Reboot the affected node:
# fuel nodes
System response
+-------------------------------------------------------------------------------------------------------------+
|id | status   | name             | cluster | ip         | mac               | roles | pending_roles | online |
|---|----------|------------------|---------|------------|-------------------|-------|---------------|--------|
|1  | discover | Untitled (29:bb) | None    | 10.109.0.3 | 64:26:37:0b:29:bb |       |               | True   |
+-------------------------------------------------------------------------------------------------------------+
# ssh 10.109.0.3 reboot