Hi :) dkms can't rebuild deleted vbox modules for the "linux" kernel # dkms install vboxhost/$(pacman -Q virtualbox|awk {'print $2'}|sed 's/\-.\+//') -k $(uname -rm|sed 's/\ /\//') Module vboxhost/4.2.8 already installed on kernel 3.7.10-1-ARCH/x86_64 # ls /usr/lib/modules/extramodules-3.7-ARCH/ version and for linux-rt I get the same error # dkms install vboxhost/$(pacman -Q virtualbox|awk {'print $2'}|sed 's/\-.\+//') -k 3.6.11-rt30-1-rt/x86_64 Module vboxhost/4.2.8 already installed on kernel 3.6.11-rt30-1-rt/x86_64 but there never were modules installed for the kernel-rt. Regards, Ralf