Hi, I had a PowerPC in my shed, it was there for about 8 years, and probably was never used much. It's a 1999 model, a PowerPC G3, slot-loading. It has 512MB of RAM (One empty slot), and a 120GB hard-drive, pretty sure it was upgraded! Also has a 400 MHz CPU. I did used Mountain Lion for about a year, for school iOS development, I'm used to it, but never had the possibility of testing an actual PowerPC. I quickly find out that I was really limited with this low-end machine, and the PowerPC architecture. I have a first question about partionning, I did this often on PC, with GParted; had trouble to partition my G3, using Disk Utility, it came with Tiger on it. For some reason, I cannot split a partition without erasing their content (and without warning!). That's no big deal, because there's nothing important on this drive, I just experiment. I believe that the problem is related to "Live partionning", which Tiger does not support. To partition the boot volume, I had to boot from the Tiger DVD, then partition, which wipe the chosen partitions... How can I avoid this? Which software would allow me to do it on PowerPC without this limitation? Next question, is related to the OS X bootloader. I believe it's called "BootX", but please correct me if I'm wrong. I've broke and fixed Windows/Linux bootloaders multiples times, and wish to understand more about the OS X bootloader, which I find a little confusing for now (I tried to install Lubuntu on the G3 - I succeeded by using all the disk space, but did not managed to install it next to OS X - couldn't install Yaboot). On my PowerPC, I notice when I hold the Option key, I have the disk selection screen, with a purple background and square boxes. When I first booted the Mac, I wasn't sure if I would saw this one instead: http://idia.sutd.edu.sg/wp-content/uploads/2014/05/Bootcamp-screen.jpg What's the bootloader shown above is, actually? Is this one exclusive to the Intel Macs, and is there anyway to get it on PowerPC (I would doubt it) ? What's the version of this bootloader? Additionally, what version of the bootloader (with the purple background, very similar to OS 9) do I have? On Windows there are NT Loader and BCD, what are the names for the OS X bootloader, is this always the same? I wondered if it was related to Darwin at all (I have Darwin 7 is believe), or it's unrelated and Darwin pretty much is the hybrid Mach/BCD kernel. Is the OS X bootloader breakable in first place? I wonder - NT Loader can easilly wipe GRUB bootloader for Linux (Which is easy to fix), can something similar happen to OS X, which would prevent the system from booting? How would you fix this? Like, if I installed Windows manually without BootCamp (on an Intel Mac of course), wouldn't the OS X bootloader get wiped, or without any consequence? I confuse a little the bootloader (BootX ?) and the OpenFirmware, which would be an equivalent to the BIOS... Not sure to quite understand this aspect, and I would love to. Sorry, that makes a lot of questions in one post. EDIT: I guess the answer is related to the partition scheme, the Apple Partion Map or GUID partitionning which Intel Macs use... They natively don't use MBR, so... ? Thanks for the explanation!