Crash during "copy harddrive to file"

[Melpomene]

Repeatedly crash on copy from hard drive to .img- file.

At about 73 % this message is outputed to the terminal and the progressbar stops moving.

The OS (Ubuntu 10.10 Maverick Meerkat) is set to Swedish.

# FIRST ATTEMPT

0.735827913536
368029078528 byte (368 GB) kopierade, 9949,23 s, 37,0 MB/s

0.735899408129
368064632832 byte (368 GB) kopierade, 9950,23 s, 37,0 MB/s

0.735970501401
368101152768 byte (368 GB) kopierade, 9951,23 s, 37,0 MB/s

0.73604352552
368138884096 byte (368 GB) kopierade, 9952,23 s, 37,0 MB/s

0.736118971901
368174989312 byte (368 GB) kopierade, 9953,23 s, 37,0 MB/s

0.736191166759
368209886208 byte (368 GB) kopierade, 9954,23 s, 37,0 MB/s

0.736260945498
368246013952 byte (368 GB) kopierade, 9955,23 s, 37,0 MB/s

0.736333185402
368281889792 byte (368 GB) kopierade, 9956,23 s, 37,0 MB/s

0.736404921607
368302915584 byte (368 GB) kopierade, 9990,05 s, 36,9 MB/s

0.736446964122
359670820+0 poster ut

Traceback (most recent call last):
  File "/usr/bin/gdiskdump", line 247, in progressbar_timeout
    status=self.get_dd_status()
  File "/usr/bin/gdiskdump", line 298, in get_dd_status
    convsize=self.convert_bytes(size)
  File "/usr/bin/gdiskdump", line 392, in convert_bytes
    bytes = float(bytes)
ValueError: invalid literal for float(): poster
dumping aborted-------------------------

# SECOND ATTEMPT

0.736391205014
368302911488 byte (368 GB) kopierade, 10273,9 s, 35,8 MB/s

0.736446955932
368302915584 byte (368 GB) kopierade, 10273,9 s, 35,8 MB/s

0.736446964122
359670820+0 poster ut

Traceback (most recent call last):
  File "/usr/bin/gdiskdump", line 247, in progressbar_timeout
    status=self.get_dd_status()
  File "/usr/bin/gdiskdump", line 298, in get_dd_status
    convsize=self.convert_bytes(size)
  File "/usr/bin/gdiskdump", line 392, in convert_bytes
    bytes = float(bytes)
ValueError: invalid literal for float(): poster
^CTraceback (most recent call last):
  File "/usr/bin/gdiskdump", line 462, in <module>
    gtk.main()
KeyboardInterrupt