Unpacking linux-backports-modules-cw-3.3-3.2.0-37-generic (from .../linux-backports-modules-cw-3.3-3.2.0-37-generic_3.2.0-37.24_i386.deb) ...
Selecting previously unselected package linux-image-3.2.0-37-generic-pae.
Unpacking linux-image-3.2.0-37-generic-pae (from .../linux-image-3.2.0-37-generic-pae_3.2.0-37.58_i386.deb) ...
Done.

Selecting previously unselected package linux-backports-modules-cw-3.3-3.2.0-37-generic-pae.
Unpacking linux-backports-modules-cw-3.3-3.2.0-37-generic-pae (from .../linux-backports-modules-cw-3.3-3.2.0-37-generic-pae_3.2.0-37.24_i386.deb) ...
Selecting previously unselected package linux-backports-modules-cw-3.4-3.2.0-37-generic.
Unpacking linux-backports-modules-cw-3.4-3.2.0-37-generic (from .../linux-backports-modules-cw-3.4-3.2.0-37-generic_3.2.0-37.24_i386.deb) ...
dpkg: error processing /var/cache/apt/archives/linux-backports-modules-cw-3.4-3.2.0-37-generic_3.2.0-37.24_i386.deb (--unpack):
 trying to overwrite '/lib/udev/rules.d/50-compat_firmware_37_generic.rules', which is also in package linux-backports-modules-cw-3.3-3.2.0-37-generic 3.2.0-37.24