Comment 2 for bug 1799550

Thanks for the answer but I'm not sure I fully understand.

If I do the setup manually the partitioning and launch the installer once it is done, is there a way to perform the installation on this encrypted partition without having to chroot the environment and to create manually crypttab and cryptroot and to tune grub (as explained in http://blog.botux.fr/en/2015/09/ubuntu-installation-manual-full-disk-encryption-lvm-on-luks/ ) ?

Xavier