Unpacking libxss1 (from .../libxss1_1%3a1.2.1-2_amd64.deb) ...
Selecting previously unselected package chromium-codecs-ffmpeg.
Unpacking chromium-codecs-ffmpeg (from .../chromium-codecs-ffmpeg_20.0.1132.47~r144678-0ubuntu0.12.04.1_amd64.deb) ...
Selecting previously unselected package chromium-browser.
Unpacking chromium-browser (from .../chromium-browser_20.0.1132.47~r144678-0ubuntu0.12.04.1_amd64.deb) ...
xz : (stdin): Les données compressées sont corrompues
dpkg-deb (subprocess): subprocess data returned error exit status 1
dpkg-deb: error: subprocess <decompress> returned error exit status 2
dpkg: error processing /var/cache/apt/archives/chromium-browser_20.0.1132.47~r144678-0ubuntu0.12.04.1_amd64.deb (--unpack):
 short read on buffer copy for backend dpkg-deb during `./usr/lib/chromium-browser/chromium-browser'