diff --git a/xCAT-test/bats/postscripts_otherpkgs.bats b/xCAT-test/bats/postscripts_otherpkgs.bats
new file mode 100644
index 000000000..1a1d3a6f2
--- /dev/null
+++ b/xCAT-test/bats/postscripts_otherpkgs.bats
@@ -0,0 +1,155 @@
+#!/usr/bin/env bats
+
+load 'helpers/shell_source'
+
+setup()
+{
+    OTHERPKGS="$(repo_path 'xCAT/postscripts/otherpkgs')"
+    [ -r "$OTHERPKGS" ] || skip "$OTHERPKGS is required"
+    LOGGER_LOG="${BATS_TEST_TMPDIR}/logger.log"
+    CMD_LOG="${BATS_TEST_TMPDIR}/cmd.log"
+    : >"$LOGGER_LOG"
+    : >"$CMD_LOG"
+    export OTHERPKGS LOGGER_LOG CMD_LOG
+}
+
+# logger writes one line per message it sends. A message that carries newlines stays on one
+# line, with the newlines shown as "\n", so the line count is the message count.
+shadow_logger()
+{
+    logger()
+    {
+        local msg=""
+        while [ $# -gt 0 ]; do
+            case "$1" in
+            -p | -t) shift 2 ;;
+            *)
+                msg="$*"
+                break
+                ;;
+            esac
+        done
+        if [ -n "$msg" ]; then
+            printf '%s\n' "${msg//$'\n'/\\n}" >>"$LOGGER_LOG"
+        else
+            local line
+            while IFS= read -r line; do
+                printf '%s\n' "$line" >>"$LOGGER_LOG"
+            done
+        fi
+    }
+}
+
+logger_call()
+{
+    sed -n "${1}p" "$LOGGER_LOG"
+}
+
+logger_calls()
+{
+    wc -l <"$LOGGER_LOG" | tr -d ' '
+}
+
+cmd_call()
+{
+    sed -n "${1}p" "$CMD_LOG"
+}
+
+# A package manager that answers with PKG_STATUS and prints a three line transaction.
+shadow_pkg_manager()
+{
+    fake_pkg()
+    {
+        printf '%s\n' "$*" >>"$CMD_LOG"
+        printf -- '--> Running transaction check\n'
+        printf 'Installed: foo-1.0\n'
+        printf 'Error: nothing provides bar\n'
+        return "${PKG_STATUS:-0}"
+    }
+    zypper() { fake_pkg "$@"; }
+    apt-get() { fake_pkg "$@"; }
+    xcat_apt_get() { fake_pkg "$@"; }
+    apt_get_update_if_repos_changed() { :; }
+}
+
+# Answers with the shell if-block that starts at the first line after the anchor.
+otherpkgs_block()
+{
+    local tail="${BATS_TEST_TMPDIR}/tail-$$"
+    awk -v anchor="$1" 'index($0, anchor) { copy = 1 } copy { print }' "$OTHERPKGS" >"$tail"
+    extract_shell_if_block "$tail" "$2"
+}
+
+run_upgrade_block()
+{
+    local block
+    block="$(otherpkgs_block '#now update the existing rpms' 'if [ $hasyum -eq 1 ]; then')" || return 99
+    local hasyum=0 haszypper=0 hasapt=0
+    eval "$1=1"
+    local envlist="" yumcmd=fake_pkg VERBOSE= log_label=otherpkgs RETURNVAL=0 REPOFILE=/dev/null result=""
+    shadow_logger
+    shadow_pkg_manager
+    eval "$block"
+    printf 'RETURNVAL=%s\n' "$RETURNVAL"
+}
+
+run_repo_preremove_block()
+{
+    local block
+    block="$(otherpkgs_block '#Now we have parsed the input' 'if [ "$repo_pkgs_preremove" != "" ]; then')" || return 99
+    local hasyum=0 haszypper=0 hasapt=0
+    eval "$1=1"
+    local envlist="" yumcmd=fake_pkg VERBOSE= log_label=otherpkgs RETURNVAL=0 REPOFILE=/dev/null result=""
+    local repo_pkgs_preremove="oldfoo"
+    shadow_logger
+    shadow_pkg_manager
+    eval "$block"
+    printf 'RETURNVAL=%s\n' "$RETURNVAL"
+}
+
+run_plain_preremove_block()
+{
+    local block
+    block="$(otherpkgs_block '#Now we have parsed the input' 'if [ "$plain_pkgs_preremove" != "" ]; then')" || return 99
+    local envlist="" VERBOSE= log_label=otherpkgs RETURNVAL=0 result=""
+    local sremovecommand=fake_pkg plain_pkgs_preremove="oldfoo"
+    shadow_logger
+    shadow_pkg_manager
+    eval "$block"
+    printf 'RETURNVAL=%s\n' "$RETURNVAL"
+}
+
+@test "otherpkgs sends the package manager transaction to syslog one line per message" {
+    run run_upgrade_block hasyum
+    [ "$status" -eq 0 ]
+    [ "$(logger_calls)" -eq 3 ]
+    [ "$(logger_call 1)" = "--> Running transaction check" ]
+    [ "$(logger_call 2)" = "Installed: foo-1.0" ]
+    [ "$(logger_call 3)" = "Error: nothing provides bar" ]
+}
+
+@test "the zypper and apt upgrade paths also send one message per output line" {
+    run run_upgrade_block haszypper
+    [ "$status" -eq 0 ]
+    [ "$(logger_calls)" -eq 3 ]
+
+    : >"$LOGGER_LOG"
+    run run_upgrade_block hasapt
+    [ "$status" -eq 0 ]
+    [ "$(logger_calls)" -eq 3 ]
+}
+
+@test "the remove paths also send one message per output line" {
+    local manager
+    for manager in hasyum haszypper hasapt; do
+        : >"$LOGGER_LOG"
+        run run_repo_preremove_block "$manager"
+        [ "$status" -eq 0 ]
+        [ "$(logger_calls)" -eq 3 ]
+    done
+
+    : >"$LOGGER_LOG"
+    run run_plain_preremove_block
+    [ "$status" -eq 0 ]
+    [ "$(logger_calls)" -eq 3 ]
+}
diff --git a/xCAT/postscripts/otherpkgs b/xCAT/postscripts/otherpkgs
index c89256e86..7e8549357 100755
--- a/xCAT/postscripts/otherpkgs
+++ b/xCAT/postscripts/otherpkgs
@@ -884,7 +884,7 @@ EOF`
         if [ $R -ne 0 ]; then
               RETURNVAL=$R
         fi
-        logger -p local4.info -t $log_label "$result"
+        printf '%s\n' "$result" | logger -p local4.info -t $log_label
         if [ $VERBOSE  ]; then
           echo "$result"
         fi
@@ -898,7 +898,7 @@ EOF`
         if [ $R -ne 0 ]; then
               RETURNVAL=$R
         fi
-        logger -p local4.info -t $log_label "$result"
+        printf '%s\n' "$result" | logger -p local4.info -t $log_label
         if [ $VERBOSE  ]; then
           echo "$result"
         fi
@@ -912,7 +912,7 @@ EOF`
         if [ $R -ne 0 ]; then
               RETURNVAL=$R
         fi
-	logger -p local4.info -t $log_label "$result"
+	printf '%s\n' "$result" | logger -p local4.info -t $log_label
         if [ $VERBOSE  ]; then
 	  echo "$result"
         fi
@@ -933,7 +933,7 @@ EOF`
             if [ $R -ne 0 ]; then
               RETURNVAL=$R
             fi
-            logger -p local4.info -t $log_label "$result"
+            printf '%s\n' "$result" | logger -p local4.info -t $log_label
             if [ $VERBOSE  ]; then
               echo "$result"
             fi
@@ -946,7 +946,7 @@ EOF`
             if [ $R -ne 0 ]; then
               RETURNVAL=$R
             fi
-            logger -p local4.info -t $log_label "$result"
+            printf '%s\n' "$result" | logger -p local4.info -t $log_label
             if [ $VERBOSE  ]; then
               echo "$result"
             fi
@@ -960,7 +960,7 @@ EOF`
             if [ $R -ne 0 ]; then
               RETURNVAL=$R
             fi
-            logger -p local4.info -t $log_label "$result"
+            printf '%s\n' "$result" | logger -p local4.info -t $log_label
             if [ $VERBOSE  ]; then
               echo "$result"
             fi
@@ -976,7 +976,7 @@ EOF`
         if [ $R -ne 0 ]; then
               RETURNVAL=$R
         fi
-        logger -p local4.info -t $log_label "$result"
+        printf '%s\n' "$result" | logger -p local4.info -t $log_label
         if [ $VERBOSE  ]; then
           echo "$result"
         fi