Oh, but it has! Apparently this is a bug with the new behaviour for signed kernels:
Oct 24 15:22:09 ubuntu ubiquity: Removing linux-signed-generic ... Oct 24 15:22:10 ubuntu ubiquity: Removing linux-signed-image-generic ... Oct 24 15:22:10 ubuntu ubiquity: Removing linux-signed-image-3.5.0-17-generic ... Oct 24 15:22:11 ubuntu ubiquity: Generating grub.cfg ... Oct 24 15:22:11 ubuntu ubiquity: Oct 24 15:22:11 ubuntu ubiquity: Found linux image: /boot/vmlinuz-3.5.0-17-generic Oct 24 15:22:11 ubuntu ubiquity: Found initrd image: /boot/initrd.img-3.5.0-17-generic Oct 24 15:22:11 ubuntu ubiquity: Found memtest86+ image: /boot/memtest86+.bin Oct 24 15:22:11 ubuntu ubiquity: done Oct 24 15:22:11 ubuntu ubiquity: Oct 24 15:22:11 ubuntu ubiquity: Purging configuration files for linux-signed-image-3.5.0-17-generic ... [...] Oct 24 15:23:29 ubuntu ubiquity: Removing linux-generic ... Oct 24 15:23:30 ubuntu ubiquity: Removing linux-headers-generic ... Oct 24 15:23:30 ubuntu ubiquity: Removing linux-headers-3.5.0-17-generic ... So for some reason ubiquity removes the kernel header packages. ** Package changed: nvidia-graphics-drivers (Ubuntu) => ubiquity (Ubuntu) ** Summary changed: - fails to build due to missing kernel headers + Ubiquity removes kernel headers, fails to build nonfree drivers -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers in Ubuntu. https://bugs.launchpad.net/bugs/1070427 Title: Ubiquity removes kernel headers, fails to build nonfree drivers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1070427/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp