Bug#830112: debian-installer: option to create encrypted disk not available in all install modes

[Gijs Hillenius <gijs@hillenius.net>]

Package: debian-installer
Severity: normal
Tags: d-i

Dear Maintainers,

In the Debian 8.5 installer, I noticed that the option to create encrypted partitions is not available in the (first) install mode.
It is also not available in the expert mode. However, it is available in the graphic installer.

-- System Information:
Debian Release: stretch/sid
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'unstable'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.6.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)