Ha!
I bought a new computer and with it, the pain of having to recreate a new TimeMachine backup on my FreeBSD server. This time, I didn’t feel like creating a sparsebundle image on a local disk and copying it to my server. Why should I? I have plenty of space on the servers.
So, in search on the Internet, I found this perfect set of instructions that show you how to create a sparseimage on you local machine and copy it to your network drive, even if your local drive is not big enough to create a sparsebundle that is twice the size of your disk. Check it out: http://www.somelifeblog.com/2009/02/fixed-time-machine-backup-to-network.html