Description of problem:
I had  a symlink initrd.... located in /boot pointing to initramfs.
Removing symlink fixed boot error.

Version-Release number of selected component:
xen-runtime-4.3.1-9.fc20

Additional info:
reporter:       libreport-2.1.12
cmdline:        /usr/bin/python /usr/bin/pygrub '--args=root=/dev/xvda2 ro ip=:127.0.255.255::::eth0:dhcp ' --output=/var/run/xend/boot/xenbl.30585 -q /STORAGE/BACKUP2/xen/domains/f20/disk.img
executable:     /usr/bin/pygrub
kernel:         3.13.3-201.fc20.i686+PAE
runlevel:       N 3
type:           Python
uid:            0

Truncated backtrace:
pygrub:882:<module>:RuntimeError: Unable to find partition containing kernel

Traceback (most recent call last):
  File "/usr/bin/pygrub", line 882, in <module>
    raise RuntimeError, "Unable to find partition containing kernel"
RuntimeError: Unable to find partition containing kernel

Local variables in innermost frame:
get_entry_idx: <function get_entry_idx at 0x8c8441c>
bootfsargs: '"root=/dev/xvda2 ro ip=:127.0.255.255::::eth0:dhcp "'
get_fs_offset_gpt: <function get_fs_offset_gpt at 0x8c843ac>
grub: <module 'grub' from '/usr/lib/python2.7/site-packages/grub/__init__.pyc'>
curses: <module 'curses' from '/usr/lib/python2.7/curses/__init__.pyc'>
FS_READ_MAX: 1048576
xen: <module 'xen' from '/usr/lib/python2.7/site-packages/xen/__init__.pyc'>
enable_cursor: <function enable_cursor at 0x8c81e64>
run_grub: <function run_grub at 0x8c8472c>
not_really: False
file: '/STORAGE/BACKUP2/xen/domains/f20/disk.img'
sel: None
identify_disk_image: <function identify_disk_image at 0x8c81e9c>
get_partition_offsets: <function get_partition_offsets at 0x8c843e4>
output_directory: '/var/run/xend/boot'
FDISK_PART_GPT: 238
struct: <module 'struct' from '/usr/lib/python2.7/struct.pyc'>
interactive: False
platform: <module 'platform' from '/usr/lib/python2.7/platform.pyc'>
tempfile: <module 'tempfile' from '/usr/lib/python2.7/tempfile.pyc'>
FDISK_PART_SOLARIS: 191
offset: 0
__package__: None
bootfsgroup: []
re: <module 're' from '/usr/lib/python2.7/re.pyc'>
sniff_netware: <function sniff_netware at 0x8c847d4>
DISK_TYPE_RAW: 0
usage: <function usage at 0x8c8487c>
getopt: <module 'getopt' from '/usr/lib/python2.7/getopt.pyc'>
output_format: 'sxp'
format_simple: <function format_simple at 0x8c84844>
__doc__: None
part_offs: [0]
fs: None
DKL_MAGIC: 55998
string: <module 'string' from '/usr/lib/python2.7/string.pyc'>
supports64bitPVguest: <function supports64bitPVguest at 0x8c84764>
SECTOR_SIZE: 512
__builtins__: <module '__builtin__' (built-in)>
__file__: '/usr/bin/pygrub'
args: ['/STORAGE/BACKUP2/xen/domains/f20/disk.img']
DISK_TYPE_HYBRIDISO: 1
FDISK_PART_SOLARIS_OLD: 130
sys: <module 'sys' (built-in)>
bootfsoptions: ''
chosencfg: {'ramdisk': None, 'kernel': None, 'args': None}
DK_LABEL_LOC: 1
format_sxp: <function format_sxp at 0x8c8480c>
__name__: '__main__'
copy: <module 'copy' from '/usr/lib/python2.7/copy.pyc'>
isconfig: False
PYGRUB_VER: 0.6
a: ''
DISK_TYPE_DOS: 2
copy_from_image: <function copy_from_image at 0x8c848b4>
logging: <module 'logging' from '/usr/lib/python2.7/logging/__init__.pyc'>
GrubLineEditor: <class __main__.GrubLineEditor at 0x8c820bc>
Grub: <class __main__.Grub at 0x8c820ec>
entry: None
traceback: <module 'traceback' from '/usr/lib/python2.7/traceback.pyc'>
fd: 3
o: '-q'
fsimage: <module 'fsimage' from '/usr/lib/python2.7/site-packages/fsimage.so'>
get_solaris_slice: <function get_solaris_slice at 0x8c81ed4>
bootcfg: {'ramdisk': None, 'kernel': None, 'args': None}
output: '/var/run/xend/boot/xenbl.30585'
incfg: {'ramdisk': None, 'kernel': None, 'args': 'root=/dev/xvda2 ro ip=:127.0.255.255::::eth0:dhcp '}
debug: False
_curses: <module '_curses' from '/usr/lib/python2.7/lib-dynload/_curses.so'>
list_entries: False
sniff_solaris: <function sniff_solaris at 0x8c8479c>
os: <module 'os' from '/usr/lib/python2.7/os.pyc'>
opts: [('--args', 'root=/dev/xvda2 ro ip=:127.0.255.255::::eth0:dhcp '), ('--output', '/var/run/xend/boot/xenbl.30585'), ('-q', '')]
V_ROOT: 2