From fe329f96ef14bf3965f1da4de84142e33253efec Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Tue, 11 Aug 2009 14:28:25 +0000
Subject: [PATCH] * Mount the host's /nix/var/nix/db in the guest.

svn path=/nixos/trunk/; revision=16674
---
 modules/virtualisation/qemu-vm.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/modules/virtualisation/qemu-vm.nix b/modules/virtualisation/qemu-vm.nix
index 742bef873fc3..5158af7668a5 100644
--- a/modules/virtualisation/qemu-vm.nix
+++ b/modules/virtualisation/qemu-vm.nix
@@ -105,6 +105,12 @@ in
         options = "bind";
         neededForBoot = true;
       }
+      # Mount the host's Nix database.  This allows read-only Nix
+      # operations in the guest to work properly.
+      { mountPoint = "/nix/var/nix/db";
+        device = "/hostfs/nix/var/nix/db";
+        options = "bind";
+      }
     ];
 
   # Starting DHCP brings down eth0, which kills the connection to the