I rely on Ubuntu, and have Win 7 in the second partition. Curious about other distros, I have looked into Virtualbox and multiple boots. If it can be done without messing with my GRUB, multibooting might be the best option. But my situation has its own difficulties, so I want to ask how I might proceed.
I cloned from sda to sdb because there were bad sectors in sda. Now, sda is last in the BIOS boot order, sdb is third. I also formatted that problematic sda keeping the bad sectors in an unallocated space, and one ntfs partition and a couple of ext4 partitions.
So here are the questions:
If I install another Linux on sda2, then boot into sdb1 (Ubuntu), can I expect my original GRUB to be safe? Can I then add the new Linux (sda2) to GRUB using GRUB Customizer?
If I install Windows 10 on sda1, will it seek and destroy the GRUB on sdb? As long as sda is last in boot order, can I install Win 10 without losing anything from my sdb setup?
THe overall principle guiding me is this: if I install on a different hard drive, and then place it last in boot order, is my main bootable drive (sdb) going to be safe?