Ubuntu 12.04 PPC Macintosh install problems

I have tried installing Ubuntu 12.04 on my Tangerine iMac,but the installer crashed when it got to the installing software. I am now trying Linux Mint PPC.

The advice given at the following URL seems to be bad advice:


But I have included this link for the sake of curiosity.  At least one reviewer advises you to choose Linux Mint PPC instead. I think I concur. Here is his post: