I have a windows 7 VM in virtualbox and I'm used to connect the Internet though NAT. But after the last system upgrade, the Internet can't be reached in the VM.
I check the log at
/var/log/pacman.log and find this:
[2013-04-16 16:03] [ALPM-SCRIPTLET] In order to use the new version, reload all virtualbox modules manually. [2013-04-16 16:03] [PACMAN] upgraded virtualbox-host-modules (4.2.10-4 -> 4.2.12-1) [2013-04-16 16:03] [PACMAN] upgraded virtualbox (4.2.10-2 -> 4.2.12-1) [2013-04-16 16:04] [PACMAN] upgraded virtualbox-guest-iso (4.2.10-1 -> 4.2.12-1)
I don't know its exact meaning but after browsing some wiki I tried to edit
vboxdrv vboxsf vboxvideo vboxguest
I also tried
modprobe vboxdrv in CLI. All turned out to be of no use.