kfreebsd-image-8.3-1-xen software package provides kernel of FreeBSD 8.3 image, you can install in your Debian 7 (Wheezy) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install kfreebsd-image-8.3-1-xen
kfreebsd-image-8.3-1-xen is installed in your system.
Make ensure the kfreebsd-image-8.3-1-xen package were installed using the commands given below,
$ sudo dpkg-query -l | grep kfreebsd-image-8.3-1-xen *
You will get with kfreebsd-image-8.3-1-xen package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Kernels |
| Package | kfreebsd-image-8.3-1-xen |
| Version | 8.3-6+deb7u1 |
| Description | kernel of FreeBSD 8.3 image |
| Sub Section | Kernels |