Running VirtualBox VM host on ReadyNAS Pro

Here the step-by-step guide :D

All these steps were tested on a just-reseted 4.2.9 stock ReadyNAS PRO (no RAM or processor upgrade), with rootSSH.

# Get some needed tools
apt-get update
apt-get install build-essential
apt-get install bzip2

# Setup build environment
cd /c/backup
wget http://www.readynas.com/download/GPL/RNDP6xxx_4.2.9_WW_src.zip
unzip -q RNDP6xxx_4.2.9_WW_src.zip -d ./GPL
# Just wait
cd GPL/linux-x86-2.6/
make oldconfig
# Just press enter until make oldconfig ends
make && make prepare
# This step will take a while
ln -s /c/backup/GPL/linux-x86-2.6/ /usr/src/linux
KERN_DIR=/usr/src/linux

# Install virtualbox from binary installer
cd /c/backup
mkdir virtualbox
cd virtualbox
wget http://download.virtualbox.org/virtualbox/3.1.8/VirtualBox-3.1.8-61349-Linux_amd64.run
chmod 755 VirtualBox-3.1.8-61349-Linux_amd64.run
./VirtualBox-3.1.8-61349-Linux_amd64.run
# You will need the next 2
apt-get install lib64stdc++6
apt-get install lib64z1

# Get some live CD to test our VirtualBox installation
cd /c/backup
mkdir CDs
cd CDs
wget http://ftp.crihan.fr/releases/10.04/ubuntu-10.04-desktop-i386.iso

# Create the virtual machine
VBoxManage createvm --name Live --ostype "Linux" --register --basefolder /c/backup/virtualbox/machines
VBoxManage storagectl Live --name "IDE Controller" --add ide
VBoxManage storageattach Live --storagectl "IDE Controller" --port 0 --device 0 --type dvddrive --medium "/c/backup/CDs/ubuntu-10.04-desktop-i386.iso"
VBoxManage modifyvm Live --memory 512 --nic1 bridged --bridgeadapter1 eth0 --boot1 dvd --boot2 none --boot3 none --boot4 none

# Start the machine
VBoxHeadless --startvm Live --vrdp on &

# You now connect to your nas using any RDP client

I got this (after apt-get install htop && htop) :
http://mackila.com/VirtualBoxOnRNDP.jpg

Hope this will help :)