diff --git a/tests/mb2hal/mb2hal.1a/checkresult b/tests/mb2hal/mb2hal.1a/checkresult
new file mode 100755
index 00000000000..9d2035bb19a
--- /dev/null
+++ b/tests/mb2hal/mb2hal.1a/checkresult
@@ -0,0 +1,13 @@
+#!/bin/bash
+set -e
+
+TESTDIR=$(dirname $1)
+cd "${TESTDIR}"
+
+# HAL assigns each component a unique component ID at load-time.
+# The RTAI and uspace HAL implementations assign different component IDs,
+# so remove all mentions of specific component IDs from the result file,
+# so that a single `expected` file works for both.
+sed --in-place --regexp-extended --expression='s/^(.*unloading HAL module \[)[0-9]+(.*)$/\1(ignored comp id)\2/' result
+
+diff -u expected result
diff --git a/tests/mb2hal/mb2hal.1a/expected b/tests/mb2hal/mb2hal.1a/expected
index 70e6114a6e9..9f4a3327011 100644
--- a/tests/mb2hal/mb2hal.1a/expected
+++ b/tests/mb2hal/mb2hal.1a/expected
@@ -126,6 +126,6 @@ mb2hal main OK: Link thread loop and logic 0 created OK
 mb2hal main OK: mb2hal is running
 mb2hal quit_signal DEBUG: signal [15] received
 mb2hal quit_cleanup DEBUG: started
-mb2hal quit_cleanup DEBUG: unloading HAL module [4] ret[0]
+mb2hal quit_cleanup DEBUG: unloading HAL module [(ignored comp id)] ret[0]
 mb2hal quit_cleanup DEBUG: done OK
 mb2hal main OK: going to exit!
diff --git a/tests/mb2hal/mb2hal.1b/checkresult b/tests/mb2hal/mb2hal.1b/checkresult
new file mode 100755
index 00000000000..4d5cba97b00
--- /dev/null
+++ b/tests/mb2hal/mb2hal.1b/checkresult
@@ -0,0 +1,13 @@
+#!/bin/bash
+set -e
+
+TESTDIR=$(dirname $1)
+cd "${TESTDIR}"
+
+# HAL assigns each component a unique component ID at load-time.
+# The RTAI and uspace HAL implementations assign different component IDs,
+# so remove all mentions of specific component IDs from the result file,
+# so that a single `expected` file works for both.
+sed --in-place --regexp-extended --expression='s/^( *)[0-9]+(.*mb2hal.Modbus_fnct_.*)$/\1(ignored comp id)\2/' result
+
+diff -u expected result
diff --git a/tests/mb2hal/mb2hal.1b/expected b/tests/mb2hal/mb2hal.1b/expected
index 2a2d05bad03..fd48d38f658 100644
--- a/tests/mb2hal/mb2hal.1b/expected
+++ b/tests/mb2hal/mb2hal.1b/expected
@@ -1,39 +1,39 @@
 Component Pins:
 Owner   Type  Dir         Value  Name
-     4  bit   OUT         FALSE  mb2hal.Modbus_fnct_02.00
-     4  bit   OUT         FALSE  mb2hal.Modbus_fnct_02.01
-     4  bit   OUT         FALSE  mb2hal.Modbus_fnct_02.02
-     4  bit   OUT         FALSE  mb2hal.Modbus_fnct_02.03
+     (ignored comp id)  bit   OUT         FALSE  mb2hal.Modbus_fnct_02.00
+     (ignored comp id)  bit   OUT         FALSE  mb2hal.Modbus_fnct_02.01
+     (ignored comp id)  bit   OUT         FALSE  mb2hal.Modbus_fnct_02.02
+     (ignored comp id)  bit   OUT         FALSE  mb2hal.Modbus_fnct_02.03
 
 Component Pins:
 Owner   Type  Dir         Value  Name
-     4  float OUT             0  mb2hal.Modbus_fnct_03.00.float
-     4  s32   OUT             0  mb2hal.Modbus_fnct_03.00.int
-     4  float OUT             0  mb2hal.Modbus_fnct_03.01.float
-     4  s32   OUT             0  mb2hal.Modbus_fnct_03.01.int
-     4  float OUT             0  mb2hal.Modbus_fnct_03.02.float
-     4  s32   OUT             0  mb2hal.Modbus_fnct_03.02.int
-     4  float OUT             0  mb2hal.Modbus_fnct_03.03.float
-     4  s32   OUT             0  mb2hal.Modbus_fnct_03.03.int
+     (ignored comp id)  float OUT             0  mb2hal.Modbus_fnct_03.00.float
+     (ignored comp id)  s32   OUT             0  mb2hal.Modbus_fnct_03.00.int
+     (ignored comp id)  float OUT             0  mb2hal.Modbus_fnct_03.01.float
+     (ignored comp id)  s32   OUT             0  mb2hal.Modbus_fnct_03.01.int
+     (ignored comp id)  float OUT             0  mb2hal.Modbus_fnct_03.02.float
+     (ignored comp id)  s32   OUT             0  mb2hal.Modbus_fnct_03.02.int
+     (ignored comp id)  float OUT             0  mb2hal.Modbus_fnct_03.03.float
+     (ignored comp id)  s32   OUT             0  mb2hal.Modbus_fnct_03.03.int
 
 Component Pins:
 Owner   Type  Dir         Value  Name
-     4  float IN              0  mb2hal.Modbus_fnct_06.00
-     4  float IN              0  mb2hal.Modbus_fnct_06.01
-     4  float IN              0  mb2hal.Modbus_fnct_06.02
-     4  float IN              0  mb2hal.Modbus_fnct_06.03
+     (ignored comp id)  float IN              0  mb2hal.Modbus_fnct_06.00
+     (ignored comp id)  float IN              0  mb2hal.Modbus_fnct_06.01
+     (ignored comp id)  float IN              0  mb2hal.Modbus_fnct_06.02
+     (ignored comp id)  float IN              0  mb2hal.Modbus_fnct_06.03
 
 Component Pins:
 Owner   Type  Dir         Value  Name
-     4  bit   IN          FALSE  mb2hal.Modbus_fnct_15.00
-     4  bit   IN          FALSE  mb2hal.Modbus_fnct_15.01
-     4  bit   IN          FALSE  mb2hal.Modbus_fnct_15.02
-     4  bit   IN          FALSE  mb2hal.Modbus_fnct_15.03
+     (ignored comp id)  bit   IN          FALSE  mb2hal.Modbus_fnct_15.00
+     (ignored comp id)  bit   IN          FALSE  mb2hal.Modbus_fnct_15.01
+     (ignored comp id)  bit   IN          FALSE  mb2hal.Modbus_fnct_15.02
+     (ignored comp id)  bit   IN          FALSE  mb2hal.Modbus_fnct_15.03
 
 Component Pins:
 Owner   Type  Dir         Value  Name
-     4  float IN              0  mb2hal.Modbus_fnct_16.00
-     4  float IN              0  mb2hal.Modbus_fnct_16.01
-     4  float IN              0  mb2hal.Modbus_fnct_16.02
-     4  float IN              0  mb2hal.Modbus_fnct_16.03
+     (ignored comp id)  float IN              0  mb2hal.Modbus_fnct_16.00
+     (ignored comp id)  float IN              0  mb2hal.Modbus_fnct_16.01
+     (ignored comp id)  float IN              0  mb2hal.Modbus_fnct_16.02
+     (ignored comp id)  float IN              0  mb2hal.Modbus_fnct_16.03