Amen! I’d rather use a RPN calculator than be forced to use Windows 
- having said that - I am FORCED to use Windows - it drives me insane that to SSH to a Linux or UNIX server I support, from my Linux desktop at home (or at the office), I have to Citrix, then RDP to an intermediary jumphost, then I can use PuTTY or MobaXterm… enfuriating…
Sorry for hijacking this thread… rant over:
I did have great success dual booting OS X and Xubuntu 16.04 on a 2,1 iMac - 32 bit only (I’ve read its possible to upgrade these models to a 64 bit capable CPU and 4 GB of RAM - but also needs an openboot/BIOS/UEFI firmware update) - for about 12 months - using RFEind (I think that’s what it’s called - it’s some UEFI doohicky) - but then Xubuntu refused to load, and I put it down to the HDD failing, and shoved it all into the “too hard basket” because these things are a nightmare to crack open!