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-rw-r--r--gnu/system/vm.scm5
1 files changed, 3 insertions, 2 deletions
diff --git a/gnu/system/vm.scm b/gnu/system/vm.scm
index 1492a0bb1c..3cba400a57 100644
--- a/gnu/system/vm.scm
+++ b/gnu/system/vm.scm
@@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -391,7 +391,8 @@ environment with the store shared with the host. MAPPINGS is a list of
(source (file-system-device fs)))
(or (string=? target (%store-prefix))
(string=? target "/")
- (string-prefix? "/dev/" source))))
+ (and (eq? 'device (file-system-title fs))
+ (string-prefix? "/dev/" source)))))
(operating-system-file-systems os)))
(operating-system (inherit os)