Загрузка не удалась: не удалось прочитать загрузочный диск

У меня следующая проблема после запуска xen:

username @ username-hp: ~ $ sudo xl create /etc/xen/lv-vm-w10.cfg

в QEMU см. Следующий текст:

Мои файлы конфигурации lv-vm-w10.cfg

# =====================================================================
# Example HVM guest configuration
# =====================================================================
#
# This is a fairly minimal example of what is required for an
# HVM guest. For a more complete guide see xl.cfg(5)

# This configures an HVM rather than PV guest
builder = "hvm"

# Guest name
name = "lv-vm-w10"

# 128-bit UUID for the domain as a hexadecimal number.
# Use "uuidgen" to generate one if required.
# The default behavior is to generate a new UUID each time the guest is started.
#uuid = "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX"

# Enable Microsoft Hyper-V compatibile paravirtualisation /
# enlightenment interfaces. Turning this on can improve Windows guest
# performance and is therefore recommended
#viridian = 1

# Initial memory allocation (MB)
memory = 2048

# Maximum memory (MB)
# If this is greater than `memory' then the slack will start ballooned
# (this assumes guest kernel support for ballooning)
#maxmem = 512

# Number of VCPUS
vcpus = 2

# Network devices
# A list of 'vifspec' entries as described in
# docs/misc/xl-network-configuration.markdown
#vif = [ 'bridge=xenbr0,model=e1000,mac=00:16:3e:14:b1:1c' ]
#vif = [ '' ]

# Disk Devices
# A list of `diskspec' entries as described in
# docs/misc/xl-disk-configuration.txt
#disk = [ '/dev/vg/guest-volume,raw,xvda,rw' ]
disk = [

    'phy:/dev/vm-vg/lv-vm-w10,hda,w',
        #'file:/home/username/Downloads/Something-OS.iso,hdc:cdrom,r'
]

# Guest VGA console configuration, either SDL or VNC
sdl = 1
vnc = 0
#boot='dc'
stdvga=1
nx=1

#pci= [
#       '00:02.0',
#       '00:14.0',
#       '24:00.0',
#       '00:1b.0',

и

username@username-hp:~$ sudo vgs
  VG    #PV #LV #SN Attr   VSize  VFree
  vm-vg   1   1   0 wz--n- 29,42g 4,42g
username@username-hp:~$ sudo lvs
  LV        VG    Attr      LSize  Pool Origin Data%  Move Log Copy%  Convert
  lv-vm-w10 vm-vg -wi-a---- 25,00g  

Группа томов и логический том, созданные на USB-флэш-памяти. Спасибо раньше.