[one-users] example vm images , ttylinux img not work on xen

[Zeeshan Ali Shah]

Hi i have xen as VM , i tried to use ttylinux from here 
http://opennebula.org/documentation:rel2.0:vmg

but it gives VmError: (2, 'Invalid kernel', "elf_xen_note_check: ERROR: 
Not a Xen-ELF image: No ELF notes or '__xen_guest' section found.\n")

any suggestion ?
the template i used is
NAME   = ttylinux
CPU    = 0.1
MEMORY = 64
OS     = [
 kernel   = "/usr/lib/xen/boot/hvmloader"]
DISK   = [
  source   = "/srv/cloud/images/ttylinux.img",
  target   = "sda",
  readonly = "no" ]
NIC    = [ NETWORK = "Small network" ]
FEATURES=[ acpi="no" ]
CONTEXT = [
    hostname    = "$NAME",
#     ip_public   = "130",
#     files      = "/path/to/init.sh /path/to/id_dsa.pub",
#    target      = "hdc",
    root_pubkey = "id_rsa.pub"
#    username    = "opennebula",
#    user_pubkey = "id_dsa.pub"
]

Also can someone host a sample VM image which i can use with Xen based 
backend ?

Zeeshan