From 0f66ff921a0bcd6372eafe454aaad8132955b6b7 Mon Sep 17 00:00:00 2001
From: Hui Kang <hkang.sunysb@gmail.com>
Date: Mon, 3 Aug 2015 17:09:45 +0000
Subject: [PATCH] Add debug message when unable to execute criu

Signed-off-by: Hui Kang <hkang.sunysb@gmail.com>
---
 libcontainer/container_linux.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libcontainer/container_linux.go b/libcontainer/container_linux.go
index 4e4a6a8b..a6680197 100644
--- a/libcontainer/container_linux.go
+++ b/libcontainer/container_linux.go
@@ -273,7 +273,7 @@ func (c *linuxContainer) checkCriuVersion() error {
 
 	out, err := exec.Command(c.criuPath, "-V").Output()
 	if err != nil {
-		return err
+		return fmt.Errorf("Unable to execute CRIU command: %s", c.criuPath)
 	}
 
 	n, err := fmt.Sscanf(string(out), "Version: %d.%d.%d\n", &x, &y, &z) // 1.5.2