On Sun, Feb 14, 2016 at 10:33:07AM +0100, Thomas Faber wrote
I usually reserve the first partition on the disk for ROS (since it may or may not have problems running from elsewhere). I tend to partition the disk to the layout I want first (e.g. 10 GB for ROS, 10 GB for Some-Other-OS, rest of the disk for whatever I consider the "main" OS), then install ROS and tell it to install its loader in both MBR & VBR. Then I install any other OSes and overwrite the MBR with my preference (typically NTLDR for me, but Grub should be fine) and add an option to boot ROS from there. Then when (not if :p) I need to reinstall ROS I make sure it doesn't touch the MBR again. If your partitioning requirements aren't too complicated you can also let ROS setup do your partitioning to avoid the extra first step.
Thanks. This may sound repetitive, but I want to clarify. Is the ReactOS bootloader able to load another OS? I'm thinking of also putting Minix 3.3 on the machine for testing.