[ONOS-8117] Fix onos-check-components

- Catch "not found" when command isn't ready
- Catch UNKNOWN state output, which used to be UNSATISFIED
- Print output when failing so stc logs give useful information

Change-Id: Iae3f19bfc1ce81035604da89a0ce99ac9dcdc525
(cherry picked from commit 922cd04ebadd39cef7557243650a1d5d5d65ea03)
diff --git a/tools/test/bin/onos-check-components b/tools/test/bin/onos-check-components
index d8cc44c..205fa0a 100755
--- a/tools/test/bin/onos-check-components
+++ b/tools/test/bin/onos-check-components
@@ -1,24 +1,23 @@
 #!/bin/bash
 # -----------------------------------------------------------------------------
-# Checks whether all ONOS components are either ACTIVE or DISABLED.
+# Checks whether all ONOS components are either ACTIVE or SATISFIED.
 # -----------------------------------------------------------------------------
-
 aux=/tmp/stc/stc-$$.log
 trap "rm -f $aux 2>/dev/null" EXIT
 
 for attempt in {1..30}; do
-    onos ${1:-$OCI} onos:scr-list > $aux
+    onos ${1:-$OCI} onos:scr-list &> $aux
 
-    if grep -q UNSATISFIED $aux; then
+    if grep -q -E "UNKNOWN|not found" $aux; then
         sleep 1
     else
         if [ -n "$2" ]; then
             echo "Searching for ACTIVE $2"
             egrep "ACTIVE.*$2" $aux && exit 0 || sleep 1
         else
-            cat $aux &&  exit 0
+            cat $aux && exit 0
         fi
     fi
 done
 
-exit 1
+cat $aux && exit 1