Comment 30 for bug 495370

Would it be completely crazy to try to install mdadm 3.0.3-2 from Debian squeeze in Lucid?:
http://packages.debian.org/squeeze/mdadm

Well I just tried it. It did spit out an error:

    rune@runescomp:~/Desktop$ sudo dpkg -i mdadm_3.0.3-2_i386.deb
    Selecting previously deselected package mdadm.
    (Reading database ... 197151 files and directories currently installed.)
    Unpacking mdadm (from mdadm_3.0.3-2_i386.deb) ...
    Setting up mdadm (3.0.3-2) ...
    Generating array device nodes... /var/lib/dpkg/info/mdadm.postinst: 158: /dev/MAKEDEV: not found
    failed.
    Generating mdadm.conf... done.
    update-initramfs: deferring update (trigger activated)
     * Starting MD monitoring service mdadm --monitor [ OK ]
     * Assembling MD arrays... [ OK ]

    Processing triggers for ureadahead ...
    Processing triggers for man-db ...
    Processing triggers for doc-base ...
    Processing 6 added doc-base file(s)...
    Registering documents with scrollkeeper...
    Processing triggers for initramfs-tools ...
    update-initramfs: Generating /boot/initrd.img-2.6.32-22-generic
    W: mdadm: /etc/mdadm/mdadm.conf defines no arrays.
    W: mdadm: no arrays defined in configuration file.

Is this insanely dangerous to do? Or just somewhat dangerous?
I haven't had time to test it yet, but I will when I finish copying some files over to my new HDD.