diff -uNar ubiquity.orig/scripts/install.py ubiquity.mod/scripts/install.py
--- ubiquity.orig/scripts/plugininstall.py	2017-05-08 16:36:59.450617559 +0200
+++ ubiquity.mod/scripts/plugininstall.py	2017-05-08 16:36:52.034735633 +0200
@@ -115,6 +115,13 @@
                 for line in langpacks:
                     self.langpacks.append(line.strip())
 
+        # Lliurex Packages
+        self.lliurex_pkgs = []
+        if os.path.exists('/var/lib/ubiquity/lliurex-extra-packages'):
+            with open('/var/lib/ubiquity/lliurex-extra-packages') as llx_pkg:
+                for line in llx_pkg:
+                    self.lliurex_pkgs.append(line.strip())
+
         # Load plugins
         modules = plugin_manager.load_plugins()
         modules = plugin_manager.order_plugins(modules)
@@ -213,6 +220,16 @@
         except install_misc.InstallStepError:
             pass
         except IOError:
+            pass
+        except SystemError:
+            pass
+
+        # Ignore failures from lliurex packages installation.
+        try:
+            self.do_install(self.lliurex_pkgs)
+        except install_misc.InstallStepError:
+            pass
+        except IOError:
             pass
         except SystemError:
             pass