From 710b6a41ec0041c6a08d647a82f167df6b1a3ba5 Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Tue, 30 Jul 2013 11:41:16 -0700
Subject: [PATCH] builder/amazon/chroot: use the attached device path

---
 builder/amazon/chroot/builder.go            | 4 ++++
 builder/amazon/chroot/step_attach_volume.go | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/builder/amazon/chroot/builder.go b/builder/amazon/chroot/builder.go
index cf8848903..ceb4a5c76 100644
--- a/builder/amazon/chroot/builder.go
+++ b/builder/amazon/chroot/builder.go
@@ -63,6 +63,10 @@ func (b *Builder) Prepare(raws ...interface{}) error {
 		b.config.DevicePath = "/dev/sdh"
 	}
 
+	if b.config.AttachedDevicePath == "" {
+		b.config.AttachedDevicePath = "/dev/xvdh"
+	}
+
 	if b.config.MountCommand == "" {
 		b.config.MountCommand = "mount"
 	}
diff --git a/builder/amazon/chroot/step_attach_volume.go b/builder/amazon/chroot/step_attach_volume.go
index cf5f89e3e..69d96988e 100644
--- a/builder/amazon/chroot/step_attach_volume.go
+++ b/builder/amazon/chroot/step_attach_volume.go
@@ -69,7 +69,7 @@ func (s *StepAttachVolume) Run(state map[string]interface{}) multistep.StepActio
 		return multistep.ActionHalt
 	}
 
-	state["device"] = device
+	state["device"] = config.AttachedDevicePath
 	return multistep.ActionContinue
 }