if the salt-minion service isnt running when the state is rendered, dont try to apply schedule - https://github.com/Security-Onion-Solutions/securityonion/issues/1333

salt/patch/os/schedule.sls

@@ -1,4 +1,4 @@
-{% if salt['pillar.get']('patch:os:schedule_name') %}
+{% if salt['pillar.get']('patch:os:schedule_name') and salt['service.status']('salt-minion', True) %}
   {% set patch_os_pillar = salt['pillar.get']('patch:os') %}
   {% set schedule_name = patch_os_pillar.schedule_name %}
   {% set splay = patch_os_pillar.get('splay', 300) %}

salt/salt/minion-check.sls

@@ -1,6 +1,7 @@
 include:
   - salt.minion-state-apply-test
 
+{% if salt['service.status']('salt-minion', True) %}
 state-apply-test:
   schedule.present:
     - name: salt-minion-state-apply-test
@@ -17,3 +18,4 @@ state-apply-test:
     - identifier: so-salt-minion-check
     - user: root
     - minute: '*/5'
+{% endif %}

salt/schedule.sls

@@ -1,5 +1,7 @@
+{% if salt['service.status']('salt-minion', True) %}
 schedule:
   schedule.present:
     - function: state.highstate
     - minutes: 15
     - maxrunning: 1
+{% endif %}