Preparing to replace libwebkit-1.0-2 1.2.3-2ubuntu1 (using .../libwebkit-1.0-2_1.2.3-2ubuntu2_amd64.deb) ...
Unpacking replacement libwebkit-1.0-2 ...
dpkg-deb (subprocess): failed to read on buffer copy for failed to write to pipe in copy: Input/output error
dpkg-deb: subprocess paste returned error exit status 2
dpkg: error processing /var/cache/apt/archives/libwebkit-1.0-2_1.2.3-2ubuntu2_amd64.deb (--unpack):
 short read on buffer copy for backend dpkg-deb during `./usr/lib/libwebkit-1.0.so.2.17.5'
Preparing to replace gucharmap 1:2.31.90-0ubuntu1 (using .../gucharmap_1%3a2.31.91-0ubuntu1_amd64.deb) ...
Unpacking replacement gucharmap ...
dpkg-deb (subprocess): failed to read on buffer copy for failed to write to pipe in copy: Input/output error
dpkg-deb: subprocess paste returned error exit status 2
dpkg: error processing /var/cache/apt/archives/gucharmap_1%3a2.31.91-0ubuntu1_amd64.deb (--unpack):
 short read on buffer copy for backend dpkg-deb during `./usr/share/gnome/help/gucharmap/C/figures/gucharmap_window.png'
Processing triggers for man-db ...
Processing triggers for python-gmenu ...
Rebuilding /usr/share/applications/desktop.en_AU.utf8.cache...
Processing triggers for desktop-file-utils ...
Processing triggers for python-support ...
Errors were encountered while processing:
 /var/cache/apt/archives/libwebkit-1.0-2_1.2.3-2ubuntu2_amd64.deb
 /var/cache/apt/archives/gucharmap_1%3a2.31.91-0ubuntu1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)