Description of problem:
installing xen-server package and trying to create a new virtual machine with virt-manager.

Version-Release number of selected component:
xen-runtime-4.2.3-3.fc19

Additional info:
reporter:       libreport-2.1.8
cmdline:        /usr/bin/python /usr/bin/pygrub --output=/var/run/xen/bootloader.1.out --output-format=simple0 --output-directory=/var/run/xen/bootloader.1.d '/run/media/balazs/data/personal/school/vmware2/Windows XP Professional.qcow2'
executable:     /usr/bin/pygrub
kernel:         3.11.4-201.fc19.x86_64
runlevel:       N 5
type:           Python
uid:            0

Truncated backtrace:
pygrub:866:<module>:RuntimeError: Unable to find partition containing kernel

Traceback (most recent call last):
  File "/usr/bin/pygrub", line 866, 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 0x270f2a8>
bootfsargs: '""'
get_fs_offset_gpt: <function get_fs_offset_gpt at 0x270f1b8>
grub: <module 'grub' from '/usr/lib64/python2.7/site-packages/grub/__init__.pyc'>
curses: <module 'curses' from '/usr/lib64/python2.7/curses/__init__.pyc'>
FS_READ_MAX: 1048576
xen: <module 'xen' from '/usr/lib64/python2.7/site-packages/xen/__init__.pyc'>
enable_cursor: <function enable_cursor at 0x26fd758>
run_grub: <function run_grub at 0x270f938>
not_really: False
file: '/run/media/balazs/data/personal/school/vmware2/Windows XP Professional.qcow2'
sel: None
identify_disk_image: <function identify_disk_image at 0x270f0c8>
get_partition_offsets: <function get_partition_offsets at 0x270f230>
output_directory: '/var/run/xen/bootloader.1.d'
FDISK_PART_GPT: 238
struct: <module 'struct' from '/usr/lib64/python2.7/struct.pyc'>
interactive: True
platform: <module 'platform' from '/usr/lib64/python2.7/platform.pyc'>
tempfile: <module 'tempfile' from '/usr/lib64/python2.7/tempfile.pyc'>
FDISK_PART_SOLARIS: 191
offset: 0
__package__: None
bootfsgroup: []
re: <module 're' from '/usr/lib64/python2.7/re.pyc'>
sniff_netware: <function sniff_netware at 0x270faa0>
DISK_TYPE_RAW: 0
usage: <function usage at 0x270fc08>
getopt: <module 'getopt' from '/usr/lib64/python2.7/getopt.pyc'>
format_simple: <function format_simple at 0x270fb90>
__doc__: None
part_offs: [0]
fs: None
DKL_MAGIC: 55998
string: <module 'string' from '/usr/lib64/python2.7/string.pyc'>
supports64bitPVguest: <function supports64bitPVguest at 0x270f9b0>
SECTOR_SIZE: 512
__builtins__: <module '__builtin__' (built-in)>
__file__: '/usr/bin/pygrub'
args: ['/run/media/balazs/data/personal/school/vmware2/Windows XP Professional.qcow2']
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 0x270fb18>
__name__: '__main__'
copy: <module 'copy' from '/usr/lib64/python2.7/copy.pyc'>
output_format: 'simple0'
PYGRUB_VER: 0.6
a: '/var/run/xen/bootloader.1.d'
DISK_TYPE_DOS: 2
copy_from_image: <function copy_from_image at 0x270fc80>
logging: <module 'logging' from '/usr/lib64/python2.7/logging/__init__.pyc'>
GrubLineEditor: <class __main__.GrubLineEditor at 0x270a258>
Grub: <class __main__.Grub at 0x270a2c0>
entry: None
traceback: <module 'traceback' from '/usr/lib64/python2.7/traceback.pyc'>
fd: 3
o: '--output-directory'
fsimage: <module 'fsimage' from '/usr/lib64/python2.7/site-packages/fsimage.so'>
get_solaris_slice: <function get_solaris_slice at 0x270f140>
bootcfg: {'ramdisk': None, 'kernel': None, 'args': None}
output: '/var/run/xen/bootloader.1.out'
incfg: {'ramdisk': None, 'kernel': None, 'args': ''}
debug: False
_curses: <module '_curses' from '/usr/lib64/python2.7/lib-dynload/_curses.so'>
isconfig: False
sniff_solaris: <function sniff_solaris at 0x270fa28>
os: <module 'os' from '/usr/lib64/python2.7/os.pyc'>
opts: [('--output', '/var/run/xen/bootloader.1.out'), ('--output-format', 'simple0'), ('--output-directory', '/var/run/xen/bootloader.1.d')]
V_ROOT: 2