PyGrub support will be added to the next version of SolusVM (1.2.10).
PyGrub enables you to start Linux PV DomUs with the kernels that lie in the filesystem of the DomU instead of with a Kernel that lies in the filesystem of the Dom0.
The PyGrub setting will be defined within the template settings. For example, you can specify that a template can use the normal Dom0 kernel and symlinks or PyGrub.
Also included will be an overide for the default root device and the extra variable for xen configs.
You will need to prepare your own templates to work with PyGrub, however theres plenty of tutorials on the net to do that.