I have a Ubuntu and Windows on my machine and I have to reinstall Ubuntu without losing any of my data, /home folder, but reinstall ubuntu option is grayed out for some reason.
What should I do in order to reinstall it without losing files and programs?
/dev/nvme0n1(seems the whole disk),/dev/nvme0n1p1(fat32) and/dev/nvme0p2(ext2)? It is asking foe theDevice for boot loader installation– Francesco Boi Aug 02 '19 at 16:45