Interesting reading. According to
this bug it is not possible to install on a F2FS partition in Ubuntu 14.04. However, some say that it is possible to install on F2FS using the alternative DVD. They say however that it is only available for the Lubuntu distribution. It is definitely not possible to have /boot on the F2FS partition since GRUB does not support it. But Linux is about pushing boundaries, right guys?