So I'm stuck in an unmet dependancies vortex. I'm running 64bit Ubuntu 10.04 on a VM. I've got MySQL and MongoDB running on this machine. I started having trouble when I attempted to upgrade to MongoDB 2.2 I was given an alert stating:
The following packages have unmet dependencies:
libnih1: Depends: libc6 (< 2.12) but 2.15-0ubuntu10.2 is to be installed

So I scrambled to install libc6_2.15-0ubuntu10.2_amd64 using a .deb installed (after first installing libc-bin_2.15-0ubuntu10.2_am d64. Now, when i attempt to install mongodb I get an alert stating this:

libnih1: Depends: libc6 (< 2.12) but 2.15-0ubuntu10.2 is to be installed

And if i attempt to run 'sudo apt-get upgrade' I get this same message.

So...basically, I'm at a loss. How do I surpass this libc6 warning?