Unpacking libqtwebkit4 (from .../libqtwebkit4_2.2.1-1ubuntu4_i386.deb) ...
dpkg-deb (subprocess): failed to read on buffer copy for failed to write to pipe in copy: Input/output error
xz: (stdin): Unexpected end of input
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/libqtwebkit4_2.2.1-1ubuntu4_i386.deb (--unpack):
 short read on buffer copy for backend dpkg-deb during `./usr/lib/i386-linux-gnu/libQtWebKit.so.4.9.0'