Install using the Ubuntu Server CD/USB image and use its text UI installer to configure encrypted partitions. After the installation is done use apt-get to install ubuntu-desktop (for Unity), kubuntu-desktop (for KDE) or whatever desktop you like best.
I've done this on 2 laptops and a desktop and it works fine (the end result is no different from the GUI installer once you've installed your desktop env) and is the only workaround that works AFAIK.
Install using the Ubuntu Server CD/USB image and use its text UI installer to configure encrypted partitions. After the installation is done use apt-get to install ubuntu-desktop (for Unity), kubuntu-desktop (for KDE) or whatever desktop you like best.
I've done this on 2 laptops and a desktop and it works fine (the end result is no different from the GUI installer once you've installed your desktop env) and is the only workaround that works AFAIK.