I installed an oracle VM on my machine and when I loaded an Ubuntu ISO it gave me options of trying Ubuntu or installing Ubuntu my first issue is I want to install on another partition I have made not my C, when I tried installing it gave options of side-by-side or the entire disk I want side by side but if I asked to installed I get this error:
no root file system defined please correct this from the partitioning menu
Please it important that I don't want to install on my C drive. ( the partition's file system is NTFS in case its important )