Recently, I had to install a software that was supported on Ubuntu 12.10 and refused to install itself on Mint 14 even though Mint 14 is based on Ubuntu 12.10. I had to find a way to get the installer script believe that the underlying distro was Ubuntu 12.10 and not Mint 14. Looking around forums, I discovered that one of the ways how the distro is detected is from the contents of the file
I started by backing up these two files in a safe location so I may restore them once I am done with the installer script and modified the lsb-release file to -
DISTRIB_ID=Ubuntu DISTRIB_RELEASE=12.10 DISTRIB_CODENAME=Quantal DISTRIB_DESCRIPTION="Ubuntu 12.10 Quantal Quetzal"
The original file from Mint -
DISTRIB_ID=LinuxMint DISTRIB_RELEASE=14 DISTRIB_CODENAME=nadia DISTRIB_DESCRIPTION="Linux Mint 14 Nadia"
And re ran the installer to have it detect Ubuntu instead of an unsupported distribution. Much of the editing was guesswork. I suspect that the installer was not looking for anything more than the first two lines from the file.