Why GRUB is in 2 different locations (/etc/default & /boot)?
122862
Why so many files relating to grub (/etc/grub.d/, /etc/default/grub, /boot/grub2/grub.cfg)? What is the purpose of each?
96227
Dualboot windows and Ubuntu but automatically boot in Ubuntu
143702
What's the difference between /usr/lib/systemd/system and /etc/systemd/system?
111380
How does Grub Stage1, exactly, access/load stage 2?
78139
No grub menu after Ubuntu install, booting directly into Ubuntu
52539
Why can't I choose Ubuntu at boot?
110305
Why is Grub menu not shown when starting my computer?
55553
How do I merge my /boot partition to be a part of the / partition?
9128
How do I set Windows to boot as the default in the boot loader?
40939
How do I customize the GRUB menu?
88502
How do I hide the GRUB menu showing up at the beginning of boot?
35051
Change boot entry names and grub background?
76686
How to define from what partition to boot by default in OS X?
118909
What is the default /etc/inittab file on a fresh install of Debian Jessie?
107012
How to get info on my current GRUB / boot configuration?
130661
grub-install: this GPT partition label contains no BIOS Boot Partition
16289
How do I uninstall GRUB?