I have a lenovo Z570 with 4GB RAM and 750GB HDD with almost of 300GB of files, and Ubuntu 12.04 i386 installed. I moved some stuff around and moved the OS to a 50GB partition and the rest for the data. Here's what I'd like to do, add another 50GB for other version of Ubuntu so I can have smoother updates without disturbing my work. So the setup I'm going for in order of the disk 1) 50GB for OS1 2) 50GB for OS2 3) whatever's left for my files 4) 4GB /swap
a) is there a way to make 3) /home and share it properly with both OS without having settings and application data stored there, like thunderbird, gnome and dropbox? b) should I consider different swap partitions for every OS? c) should I consider additional partitions like /boot?
Thank you, and I'm sorry if the question is not properly put, its my first time :)