Hi I have a query I'm hoping a mac expert can answer. I have a 2011 imac with Yosemite. However I have some old software I would like to use and wanted to partition the imac and add Tiger on the other partition. I have the Tiger install disks from my old G5, I partitioned the imac but it would not recognise the install disk for Tiger. I think this happened as Tiger is PowerPC and the imac is Intel. My question is, has anyone sucessfully installed Tiger on the imac and if so how? Many thanks in advance.