I've installed v3.19-rc7-vivid (thus now running 3.19.0-031900rc7-generic) and the dmesg message is gone now. Good! FWIW: with linux-headers-3.19.0-031900rc7-generic_3.19.0-031900rc7.201502020035_amd64.deb linux-image-3.19.0-031900rc7-generic_3.19.0-031900rc7.201502020035_amd64.deb I did sudo dpkg -i *031900rc7-generic_3.19.0*deb and the kernel itself went OK, but the headers didn't: Errors were encountered while processing: linux-headers-3.19.0-031900rc7-generic But could be a noob thing, but I can't find it. Tips welcome Full log: sander@superstreamer:~/Downloads/3.19.0-031900rc7$ sudo dpkg -i *deb (Reading database ... 187321 files and directories currently installed.) Preparing to unpack linux-headers-3.19.0-031900rc7-generic_3.19.0-031900rc7.201502020035_amd64.deb ... Unpacking linux-headers-3.19.0-031900rc7-generic (3.19.0-031900rc7.201502020035) over (3.19.0-031900rc7.201502020035) ... Preparing to unpack linux-image-3.19.0-031900rc7-generic_3.19.0-031900rc7.201502020035_amd64.deb ... Done. Unpacking linux-image-3.19.0-031900rc7-generic (3.19.0-031900rc7.201502020035) over (3.19.0-031900rc7.201502020035) ... Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.19.0-031900rc7-generic /boot/vmlinuz-3.19.0-031900rc7-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.19.0-031900rc7-generic /boot/vmlinuz-3.19.0-031900rc7-generic dpkg: dependency problems prevent configuration of linux-headers-3.19.0-031900rc7-generic: linux-headers-3.19.0-031900rc7-generic depends on linux-headers-3.19.0-031900rc7; however: Package linux-headers-3.19.0-031900rc7 is not installed. dpkg: error processing package linux-headers-3.19.0-031900rc7-generic (--install): dependency problems - leaving unconfigured Setting up linux-image-3.19.0-031900rc7-generic (3.19.0-031900rc7.201502020035) ... Running depmod. update-initramfs: deferring update (hook will be called later) Not updating initrd symbolic links since we are being updated/reinstalled (3.19.0-031900rc7.201502020035 was configured last, according to dpkg) Not updating image symbolic links since we are being updated/reinstalled (3.19.0-031900rc7.201502020035 was configured last, according to dpkg) Examining /etc/kernel/postinst.d. run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 3.19.0-031900rc7-generic /boot/vmlinuz-3.19.0-031900rc7-generic run-parts: executing /etc/kernel/postinst.d/initramfs-tools 3.19.0-031900rc7-generic /boot/vmlinuz-3.19.0-031900rc7-generic update-initramfs: Generating /boot/initrd.img-3.19.0-031900rc7-generic run-parts: executing /etc/kernel/postinst.d/pm-utils 3.19.0-031900rc7-generic /boot/vmlinuz-3.19.0-031900rc7-generic run-parts: executing /etc/kernel/postinst.d/update-notifier 3.19.0-031900rc7-generic /boot/vmlinuz-3.19.0-031900rc7-generic run-parts: executing /etc/kernel/postinst.d/zz-update-grub 3.19.0-031900rc7-generic /boot/vmlinuz-3.19.0-031900rc7-generic Generating grub configuration file ... Found linux image: /boot/vmlinuz-3.19.0-031900rc7-generic Found initrd image: /boot/initrd.img-3.19.0-031900rc7-generic Found linux image: /boot/vmlinuz-3.18.0-12-generic Found initrd image: /boot/initrd.img-3.18.0-12-generic Found Windows Boot Manager on /dev/mmcblk0p1@/EFI/Microsoft/Boot/bootmgfw.efi Found Debian GNU/Linux (wheezy/sid) on /dev/mmcblk1p2 Adding boot menu entry for EFI firmware configuration done Errors were encountered while processing: linux-headers-3.19.0-031900rc7-generic sander@superstreamer:~/Downloads/3.19.0-031900rc7$