etched 110 MB in 3min 29s (527 kB/s)
Extracting templates from packages: 100%
Preconfiguring packages ...
Setting up python-minimal (2.7.1-0ubuntu5.1) ...
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/runpy.py", line 162, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/usr/local/lib/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/usr/local/lib/python2.7/compileall.py", line 16, in <module>
    import struct
  File "/usr/local/lib/python2.7/struct.py", line 1, in <module>
    from _struct import *
ImportError: No module named _struct
dpkg: error processing python-minimal (--configure):
 subprocess installed post-installation script returned error exit status 255
Errors were encountered while processing:
 python-minimal
E: Could not open file /var/lib/apt/lists/ca.archive.ubuntu.com_ubuntu_dists_natty_restricted_i18n_Translation-en%5fCA - open (2: No such file or directory)
E: Could not open file /var/lib/apt/lists/ca.archive.ubuntu.com_ubuntu_dists_natty_main_i18n_Translation-en%5fCA - open (2: No such file or directory)
E: Sub-process /usr/bin/dpkg returned an error code (1)