▶ sudo dpkg -i linux-image-4.3.0-040300-generic_4.3.0-040300.201511020949_amd64.deb
(Reading database ... 292167 files and directories currently installed.)
Preparing to unpack linux-image-4.3.0-040300-generic_4.3.0-040300.201511020949_amd64.deb ...
Examining /etc/kernel/preinst.d/
run-parts: executing /etc/kernel/preinst.d/intel-microcode 4.3.0-040300-generic /boot/vmlinuz-4.3.0-040300-generic
Done.
Unpacking linux-image-4.3.0-040300-generic (4.3.0-040300.201511020949) over (4.3.0-040300.201511020949) ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 4.3.0-040300-generic /boot/vmlinuz-4.3.0-040300-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 4.3.0-040300-generic /boot/vmlinuz-4.3.0-040300-generic
dpkg: dependency problems prevent configuration of linux-image-4.3.0-040300-generic:
 linux-image-4.3.0-040300-generic depends on initramfs-tools (>= 0.36ubuntu6) | linux-initramfs-tool; however:
  Package initramfs-tools is not configured yet.
  Package linux-initramfs-tool is not installed.
  Package initramfs-tools which provides linux-initramfs-tool is not configured yet.

dpkg: error processing package linux-image-4.3.0-040300-generic (--install):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 linux-image-4.3.0-040300-generic