To install flashback...
apt-get install python rsync make debhelper devscripts
git clone https://github.com/sudoer/flashback
cd flashback
make install
cp /usr/share/doc/flashback/examples/* /etc
vim /etc/flashback.*
fdisk /dev/sdb
mkfs.ext4 /dev/sdb1
mkdir /backup
mount /dev/sdb1 /backup
vim /etc/fstab
service flashback start
cat /var/lib/flashback/status
cat /var/lib/flashback/queue
vim /etc/rc.local