diff --git a/lib/utils.pm b/lib/utils.pm
index 1b9653e73cd1..4b62341806c1 100644
--- a/lib/utils.pm
+++ b/lib/utils.pm
@@ -1016,7 +1016,12 @@ sub zypper_install_available {
     my $packlist = join(' ', @_);
     my $result = zypper_search("-t package --match-exact $packlist");
 
-    return zypper_call('-t in ' . join(' ', map { $_->{name} } @$result));
+    if (is_transactional) {
+        return transactional::trup_call("-c pkg install " . join(' ', map { $_->{name} } @$result));
+    }
+    else {
+        return zypper_call('-t in ' . join(' ', map { $_->{name} } @$result));
+    }
 }
 
 =head2 set_zypper_lock_timeout
diff --git a/tests/kernel/install_ltp.pm b/tests/kernel/install_ltp.pm
index ba7da8e7e599..15120f1e89f1 100644
--- a/tests/kernel/install_ltp.pm
+++ b/tests/kernel/install_ltp.pm
@@ -294,6 +294,17 @@ sub setup_network {
     }
 }
 
+sub install_ltp_extra_dep_package {
+    if (is_transactional) {
+        if ((get_var('FLAVOR', '') =~ /Base-RT-Updates|Base-RT|Base-RT-encrypted/)) {
+            zypper_install_available("kernel-rt-devel");
+        }
+        else {
+            zypper_install_available("kernel-default-devel");
+        }
+    }
+}
+
 sub run {
     my $self = shift;
     my $inst_ltp = get_var 'INSTALL_LTP';
@@ -363,6 +374,8 @@ sub run {
         }
     }
 
+    install_ltp_extra_dep_package();
+
     log_versions 1;
 
     zypper_call('in efivar') if is_sle('12+') || is_opensuse;
@@ -387,6 +400,9 @@ sub run {
         reboot_on_changes;
     }
 
+    # The default LTP linux directory is /usr/src/linux
+    script_run("[ -d /usr/src/linux-rt ] && mv /usr/src/linux-rt /usr/src/linux");
+
     setup_network;
 
     # we don't run LVM tests in 32bit, thus not generating the runtest file