Selecting previously unselected package linux-headers-4.2.0-7.
(Reading database ... 442552 files and directories currently installed.)
Preparing to unpack linux-headers-4.2.0-7_4.2.0-7.7_all.deb ...
Unpacking linux-headers-4.2.0-7 (4.2.0-7.7) ...
Selecting previously unselected package linux-headers-4.2.0-7-exton.
Preparing to unpack linux-headers-4.2.0-7-exton_4.2.0-7.7_amd64.deb ...
Unpacking linux-headers-4.2.0-7-exton (4.2.0-7.7) ...
Selecting previously unselected package linux-image-4.2.0-7-exton.
Preparing to unpack linux-image-4.2.0-7-exton_4.2.0-7.7_amd64.deb ...
Examining /etc/kernel/preinst.d/
run-parts: executing /etc/kernel/preinst.d/amd64-microcode 4.2.0-7-exton /boot/vmlinuz-4.2.0-7-exton
run-parts: executing /etc/kernel/preinst.d/intel-microcode 4.2.0-7-exton /boot/vmlinuz-4.2.0-7-exton
Done.
Unpacking linux-image-4.2.0-7-exton (4.2.0-7.7) ...
Setting up linux-headers-4.2.0-7 (4.2.0-7.7) ...
Setting up linux-headers-4.2.0-7-exton (4.2.0-7.7) ...
Examining /etc/kernel/header_postinst.d.
run-parts: executing /etc/kernel/header_postinst.d/dkms 4.2.0-7-exton /boot/vmlinuz-4.2.0-7-exton
Error! Bad return status for module build on kernel: 4.2.0-7-exton (x86_64)
Consult /var/lib/dkms/virtualbox/4.3.18/build/make.log for more information.
Setting up linux-image-4.2.0-7-exton (4.2.0-7.7) ...
Running depmod.
update-initramfs: deferring update (hook will be called later)
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.2.0-7-exton /boot/vmlinuz-4.2.0-7-exton
run-parts: executing /etc/kernel/postinst.d/dkms 4.2.0-7-exton /boot/vmlinuz-4.2.0-7-exton
Error! Bad return status for module build on kernel: 4.2.0-7-exton (x86_64)
Consult /var/lib/dkms/virtualbox/4.3.18/build/make.log for more information.
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.2.0-7-exton /boot/vmlinuz-4.2.0-7-exton
update-initramfs: Generating /boot/initrd.img-4.2.0-7-exton
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8107e-2.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8107e-1.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168h-2.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168h-1.fw for module r8169
run-parts: executing /etc/kernel/postinst.d/pm-utils 4.2.0-7-exton /boot/vmlinuz-4.2.0-7-exton
run-parts: executing /etc/kernel/postinst.d/unattended-upgrades 4.2.0-7-exton /boot/vmlinuz-4.2.0-7-exton
run-parts: executing /etc/kernel/postinst.d/zz-extlinux 4.2.0-7-exton /boot/vmlinuz-4.2.0-7-exton
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 4.2.0-7-exton /boot/vmlinuz-4.2.0-7-exton
Generating grub configuration file ...
Found background image: /usr/share/images/desktop-base/desktop-grub.png
Found linux image: /boot/vmlinuz-4.2.0-7-exton
Found initrd image: /boot/initrd.img-4.2.0-7-exton
Found linux image: /boot/vmlinuz-4.1.2-040102-generic
Found initrd image: /boot/initrd.img-4.1.2-040102-generic
Found linux image: /boot/vmlinuz-3.17-1-amd64
Found initrd image: /boot/initrd.img-3.17-1-amd64
done