On 11/10/17 16:55, r...@sfm-consulting.at wrote: > So I actually double checked and yes, I am marking an A6 partition as > bootable/active. So where could the error be originating from? > > Thanks for any hints and help!
well, so much for the easy solution. It sounds like you are trying to do a very difficult task in one big step. That's never a good plan. The way I'd approach something like that is: 1) basic macos install (yeah, sure...put it on 1/3rd of the disk) 2) Basic second OS install 3) Basic third OS install 4) Dual boot MacOS / [OS you are second-most familiar with on Mac platform] (and again, leave some disk space free, so MAYBE you can go right on to the next step without reloading completely from scratch) 5) Triple boot all three OSs 6) Start getting fancy by adding things like disk encryption. Note the first three steps -- you MUST master the install of all three OSs by themselves before tackling two at a time, and then three at a time. Dual booting is tricky for people who understand all the OSs on hw designed to use different OSs, coming in as a novice on any of the OSs and working on a platform that assumed you would only run their OS on it is going to be difficult. Be very aware that, while I won't say your task is impossible, it may not be something anyone has done before, and code may need to be written. Nick.
