read(3, "# Automatically generated xen co"..., 4096) = 686
read(3, "", 4096)                       = 0
close(3)                                = 0
munmap(0x4000f000, 4096)                = 0
access("/usr/bin/pygrub", X_OK)         = 0
access("/usr/bin/pygrub", X_OK)         = 0
access("/home/admin/xen/vm5.disk", R_OK) = 0
stat64("/var/lib/xen/xenbl.29278", 0xbff60808) = -1 ENOENT (No such file or directory)
mknod("/var/lib/xen/xenbl.29278", S_IFIFO|0600) = 0
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x400115c8) = 26663
open("/var/lib/xen/xenbl.29278", O_RDONLY|O_LARGEFILE) = 3
select(4, [3], [], [], NULLTraceback (most recent call last):
  File "/usr/bin/pygrub", line 489, in ?
    g = Grub(file, isconfig)
  File "/usr/bin/pygrub", line 147, in __init__
    self.read_config(file, isconfig)
  File "/usr/bin/pygrub", line 326, in read_config
    fs = fstype.open_fs(fn, offset)
  File "/usr/lib/python/grub/fsys/ext2/__init__.py", line 35, in open_fs
    return Ext2Fs(fn, offset = offset)
ValueError: unable to open file
)            = 1 (in [3])
--- SIGCHLD (Child exited) @ 0 (0) ---