Perform an installation in a language other than English, using a keyboard layout other than US or GB...

You should expect the following during the installation:

• During the installation, the installer should download the language packs for the language you selected.

You should expect the following from the installed system:

• The login manager should use the foreign keyboard layout
• The login manager should show up in the foreign language
• The desktop should show up in the foreign language
• mintWelcome should show up in the foreign language
• firefox should show up in the foreign language
• The terminal should use the foreign keyboard layout

The layout for on-screen keyboards is fixed.