For me I got it to work as follow after reading this link: https://www.virtualbox.org/ticket/10709
My error from /var/log/vboxadd-install.log make[2]: *** [/tmp/vbox.0/r0drv/linux/memobj-r0drv-linux.o] Error 1 make[1]: *** [_module_/tmp/vbox.0] Error 2 make: *** [vboxguest] Error 2 I copied the source at this link: https://www.virtualbox.org/attachment/ticket/10709/memobj-r0drv-linux.c and removed line numbers. Then replaced the existing source: root@u12:/opt/VBoxGuestAdditions-4.1.18/src/vboxguest-4.1.18/vboxguest/r0drv/linux# mv ~/memobj-r0drv-linux.c ./memobj-r0drv-linux.c Then reran vboxadd: root@u12:/opt/VBoxGuestAdditions-4.1.18/src/vboxguest-4.1.18/vboxguest/r0drv/linux# /etc/init.d/vboxadd setup Removing existing VirtualBox DKMS kernel modules ...done. Removing existing VirtualBox non-DKMS kernel modules ...done. Building the VirtualBox Guest Additions kernel modules The headers for the current running kernel were not found. If the following module compilation fails then this could be the reason. Building the main Guest Additions module ...done. Building the shared folder support module ...done. Building the OpenGL support module ...done. Doing non-kernel setup of the Guest Additions ...done. Starting the VirtualBox Guest Additions ...done. ** Bug watch added: Virtualbox Trac #10709 http://www.virtualbox.org/ticket/10709 ** Bug watch added: www.virtualbox.org/attachment/ #10709 https://www.virtualbox.org/attachment/ticket/10709 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1016165 Title: virtualbox-guest-dkms 4.1.16-dfsg-2: virtualbox-guest kernel module failed to build [error: implicit declaration of function ‘do_mmap’] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virtualbox/+bug/1016165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
