Backup root partition, and boot from backup root
Hello all, I'm new here and have been messing around in Linux for a little over a year now and I am now working on some more advanced (for me) system coursework. Yes, this is homework for a security system admin class, but I have worked on this individual problem for about 10 hours and haven't moved forward on it.
I am running Linux Mint in a virtual machine, and I needed to add a disk to my system and set up a partition or logical volume on the new disk as a backup root partition. I have added a 4GB "disk" and I'm assuming now I need to format it with GUID partitioning table, since it will be used for Linux. Once that is done, I need to have it set as a backup root partition with EXT4. I assume that next I need to dd /boot to this partition? I am a little lost on what to do there.
On to the next part of the problem, I need to make sure I can boot from the backup root (created above) and that the system will run normally when so booted. I'm thinking that this has to do with GRUB but I'm not completely sure, I need to make sure that the system boots from this particular partition, but still has access to all of the other parts of the OS so it will run like nothing ever happened. This is where I'm more than a little lost.
I know that I need root access, but I'm somewhat worried about moving files around and not being able to boot the virtual machine back up if I do mess something up, so a little guidance would be very helpful.