Can I Install grub on an USB and make it a rescue disk?
Question: Is it safe to run the following commands?
sudo grub-install /dev/sdb (where sdb is my USB drive) update-grub2
- Question: Would I really get a grub menu from USB (provided that it boot first at my BIOS) whenever I cannot boot from my hard disk?
- Question: Does update-grub2 delete itself from one drive when installing to another, will I boot from hard disk also than from USB, depending on my BIOS options?