Check failing elemental-setup stages does not prevent boot and report…

…s a degraded systemd status

Signed-off-by: David Cassany <[email protected]>

tests/assets/boot_checker_failure.yaml

@@ -7,7 +7,14 @@ stages:
       content: |
         #!/bin/bash
         
-        exit 1
+        systemctl is-failed --quiet && exit 1
       permissions: 0755
       owner: 0
       group: 0
+  network:
+  - name: "A command that just fails"
+    commands:
+    - exit 1
+  - name: "To verify this is still executed"
+    commands:
+    - touch /run/elemental/persistent/network-stage.sentinel

tests/fallback/fallback_test.go

@@ -101,6 +101,9 @@ var _ = Describe("Elemental booting fallback tests", func() {
 			Expect(err).ShouldNot(HaveOccurred())
 			Expect(cmdline).To(ContainSubstring("1"))
 
+			cmdline, err = s.Command("sudo test -f /run/elemental/persistent/network-stage.sentinel")
+			Expect(err).ShouldNot(HaveOccurred())
+
 			By("Waiting for the failed health checker to trigger a reboot")
 			s.EventuallyDisconnects(300)