kfreebsd-downloader-9 software package provides kernel of FreeBSD (upstream version), 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-downloader-9
kfreebsd-downloader-9 is installed in your system.
Make ensure the kfreebsd-downloader-9 package were installed using the commands given below,
$ sudo dpkg-query -l | grep kfreebsd-downloader-9 *
You will get with kfreebsd-downloader-9 package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Kernels |
| Package | kfreebsd-downloader-9 |
| Version | 9.0-3+deb70.1 |
| Description | kernel of FreeBSD (upstream version) |
| Sub Section | Kernels |