[Libguestfs] libguestfs on proxmox

Hello, I have an issue with virt-resize on the newest version of proxmox which is running on debian wheezy. when I run the virt-resize on a windows 2008 qemu image I got an error. Here is the last part of the debug message: Copying /dev/sda1 ... libguestfs: trace: copy_device_to_device "/dev/sda1" "/dev/sdb1" "size:32210026496" 100% ⟦▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒⟧ 00:00 libguestfs: trace: copy_device_to_device = 0 libguestfs: trace: part_set_bootable "/dev/sdb" 1 true libguestfs: trace: part_set_bootable = 0 libguestfs: trace: part_set_mbr_id "/dev/sdb" 1 7 libguestfs: trace: part_set_mbr_id = 0 libguestfs: trace: shutdown libguestfs: trace: internal_autosync libguestfs: trace: internal_autosync = 0 libguestfs: trace: shutdown = 0 libguestfs: trace: close libguestfs: trace: add_drive "vm-2000-disk-1.qcow2.out" "readonly:false" libguestfs: trace: add_drive = 0 libguestfs: trace: launch libguestfs: trace: get_tmpdir libguestfs: trace: get_tmpdir = "/tmp" libguestfs: trace: get_cachedir libguestfs: trace: get_cachedir = "/var/tmp" 100% ⟦▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒⟧ 00:00 libguestfs: trace: launch = 0 Expanding /dev/sda1 using the 'ntfsresize' method ... libguestfs: trace: ntfsresize "/dev/sda1" "force:false" libguestfs: trace: ntfsresize = -1 (error) Fatal error: exception Guestfs.Error("ntfsresize: /dev/sda1: ") libguestfs: trace: close libguestfs: trace: internal_autosync libguestfs: trace: internal_autosync = 0