There is also a bug in trusty version. The fstab is indeed writen, but the file system type is wrong as the hook made a `xfs` fs but the fstab is writen as `ext3` and this is a very serious problem because this will prevent the box from boot!!
There is also a bug in trusty version. The fstab is indeed writen, but the file system type is wrong as the hook made a `xfs` fs but the fstab is writen as `ext3` and this is a very serious problem because this will prevent the box from boot!!