(1) testcase at http://testcases.qa.ubuntu.com/Install/AlternateEncryptedLvm has an order issue; the installer prompts for username/pw/home dir encryption *before* doing disk partitioning, but the instructions have the order reversed; items 16-20 probably need to be moved to before item 8.
(2) update-manager outputs some theme related warnings which should probably be fixed:
(update-manager:1812): Gtk-WARNING **: Theme parsing error: gtk-buttons.css:159:10: Expected valid border (update-manager:1812): Gtk-WARNING **: Theme parsing error: gtk-bars.css:102:16: Themeing engine 'adwaita' not found (update-manager:1812): Gtk-WARNING **: Theme parsing error: gtk-bars.css:117:16: Themeing engine 'adwaita' not found (update-manager:1812): Gtk-WARNING **: Theme parsing error: gtk-bars.css:134:16: Themeing engine 'adwaita' not found (update-manager:1812): Gtk-WARNING **: Theme parsing error: gtk-bars.css:153:16: Themeing engine 'adwaita' not found (update-manager:1812): Gtk-WARNING **: Theme parsing error: gtk-bars.css:165:16: Themeing engine 'adwaita' not found (update-manager:1812): Gtk-WARNING **: Theme parsing error: gtk-bars.css:175:16: Themeing engine 'adwaita' not found (update-manager:1812): Gtk-WARNING **: Theme parsing error: gtk-bars.css:186:16: Themeing engine 'adwaita' not found (update-manager:1812): Gtk-WARNING **: Theme parsing error: gtk-bars.css:198:16: Themeing engine 'adwaita' not found (update-manager:1812): Gtk-WARNING **: Theme parsing error: gtk-bars.css:208:16: Themeing engine 'adwaita' not found (update-manager:1812): Gtk-WARNING **: Theme parsing error: gtk-bars.css:218:16: Themeing engine 'adwaita' not found (update-manager:1812): Gtk-WARNING **: Theme parsing error: gtk-bars.css:223:16: Themeing engine 'adwaita' not found
(3) postinstall tests at http://testcases.qa.ubuntu.com/Install/DesktopPostInstallation assume firefox, but Lubuntu uses chromium as its default browser. The test should be edited to be browser-agnostic, perhaps asking the user to run the command sensible-browser, so ensuring the most appropriate browser is used for this test.
