doc: Back up on the claim of encrypted root partitions.

Reported by 宋文武 <iyzsong@openmailbox.org>
at <https://lists.gnu.org/archive/html/guix-devel/2015-11/msg00096.html>.

* doc/guix.texi (System Installation): Comment out encrypted root
  partition commands.
* gnu/system/examples/desktop.tmpl (mapped-devices): Remove.
  (file-systems): Refer to the root by label.
* NEWS: Adjust.

1 files changed, 12 insertions, 11 deletions

diff --git a/doc/guix.texi b/doc/guix.texi
index 7898a1d3fb0..7e5f9c774b9 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -5310,23 +5310,24 @@ Setting up network access is almost always a requirement because the
 image does not contain all the software and tools that may be needed.
 
 @item
-Unless this has already been done, you must partition, optionally
-encrypt, and then format the target partitions.
+Unless this has already been done, you must partition, and then format
+the target partition.
 
 Preferably, assign partitions a label so that you can easily and
 reliably refer to them in @code{file-system} declarations (@pxref{File
 Systems}).  This is typically done using the @code{-L} option of
 @command{mkfs.ext4} and related commands.
 
-A typical command sequence may be:
-
-@example
-# fdisk /dev/sdX
-@dots{} Create partitions etc.@dots{}
-# cryptsetup luksFormat /dev/sdX1
-# cryptsetup open --type luks /dev/sdX1 my-partition
-# mkfs.ext4 -L my-root /dev/mapper/my-partition
-@end example
+@c FIXME: Uncomment this once GRUB fully supports encrypted roots.
+@c A typical command sequence may be:
+@c
+@c @example
+@c # fdisk /dev/sdX
+@c @dots{} Create partitions etc.@dots{}
+@c # cryptsetup luksFormat /dev/sdX1
+@c # cryptsetup open --type luks /dev/sdX1 my-partition
+@c # mkfs.ext4 -L my-root /dev/mapper/my-partition
+@c @end example
 
 The installation image includes Parted (@pxref{Overview,,, parted, GNU
 Parted User Manual}), @command{fdisk}, Cryptsetup/LUKS for disk