Preparing to unpack .../linux-libc-dev_4.4.0-141.167_amd64.deb ...
Unpacking linux-libc-dev:amd64 (4.4.0-141.167) over (4.4.0-140.166) ...
Preparing to unpack .../linux-tools-common_4.4.0-141.167_all.deb ...
Unpacking linux-tools-common (4.4.0-141.167) over (4.4.0-140.166) ...
Processing triggers for man-db (2.7.5-1) ...
Setting up initramfs-tools (0.122ubuntu8.13) ...
update-initramfs: deferring update (trigger activated)
Setting up linux-firmware (1.157.21) ...
update-initramfs: Generating /boot/initrd.img-3.13.0-163-generic
E: amd64-microcode: unsupported kernel version!
E: /usr/share/initramfs-tools/hooks/casper-memdisk failed with return 1.
update-initramfs: failed for /boot/initrd.img-3.13.0-163-generic with 1.
dpkg: error processing package linux-firmware (--configure):
 subprocess installed post-installation script returned error exit status 1