From d4bf624f968fa7b94988080be231285a95ea2ce8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20=C4=8Cun=C3=A1t?= <vcunat@gmail.com>
Date: Sat, 11 Feb 2017 12:47:15 +0100
Subject: [PATCH] nixos manual: add grub option to avoid #21830

Close #22659.  vcunat edited this slightly.
---
 nixos/doc/manual/configuration/luks-file-systems.xml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/nixos/doc/manual/configuration/luks-file-systems.xml b/nixos/doc/manual/configuration/luks-file-systems.xml
index 2062456703f..00c795cd089 100644
--- a/nixos/doc/manual/configuration/luks-file-systems.xml
+++ b/nixos/doc/manual/configuration/luks-file-systems.xml
@@ -37,6 +37,10 @@ boot.initrd.luks.devices.crypted.device = "/dev/disk/by-uuid/3f6b0024-3a44-4fde-
 fileSystems."/".device = "/dev/mapper/crypted";
 </programlisting>
 
+Should grub be used as bootloader, and <filename>/boot</filename> is located
+on an encrypted partition, it is necessary to add the following grub option:
+<programlisting>boot.loader.grub.enableCryptodisk = true;</programlisting>
+
 </para>
 
 </section>