diff -r 20204db0891b tools/python/xen/xm/create.py
--- a/tools/python/xen/xm/create.py	Thu Nov 02 18:52:04 2006 +0000
+++ b/tools/python/xen/xm/create.py	Mon Nov 06 10:11:05 2006 -0500
@@ -671,8 +671,10 @@ def configure_hvm(config_image, vals):
     config_image.append(['vncpasswd', vals.vncpasswd])
 
 def run_bootloader(vals, config_image):
+    if not os.access(vals.bootloader, os.F_OK):
+        err("Bootloader '%s' does not exist" % vals.bootloader)
     if not os.access(vals.bootloader, os.X_OK):
-        err("Bootloader isn't executable")
+        err("Bootloader '%s' isn't executable" % vals.bootloader)
     if len(vals.disk) < 1:
         err("No disks configured and boot loader requested")
     (uname, dev, mode, backend) = vals.disk[0]