irb auto complete

在~/.irbrc中加入：

require 'irb/completion'
ARGV.concat [ "--readline", "--prompt-mode", "simple" ]

2 issues of VirtualBox on Ubuntu 8.04

issue: "VirtualBox No suitable module for running kernel found"
solution:

sudo apt-get install virtualbox-ose-source
sudo m-a update
sudo m-a prepare
sudo m-a a-i virtualbox-ose
sudo /etc/init.d/vboxdrv restart

issue: "VirtualBox Kernel driver not install"
solution:

sudo /etc/init.d/vboxdrv start
sudo chmod 666 /dev/vboxdrv