Grub doesn't show up, just grey screen for seconds instead!
56571
Ubuntu GNOME: Grey screen and very slow boot
28871
Error: "Failed to open \EFI\BOOT\grubx64.efi..." (Dual-Booting)
39946
How to show GRUB after install Ubuntu over Windows 8?
51232
Boot error > no such device: grub rescue
93688
How can I add a new operating system boot entry to the GRUB2 menu?
110066
Ubuntu install hangs at "Installing the 'grub2' package..."
108195
Grub menu at boot time... "holding shift" not working
34181
Accidently installed grub to usb
129105
Can't boot, no grub, "alloc magic is broken"
149432
Grub Rescue prompt appears after deleting Ubuntu partition. Can't boot Windows
1285
My computer boots to a black screen, what options do I have to fix it?
23908
How can I reinstall GRUB to the EFI partition?
143712
Repair Grub after install windows?
672
Unable to boot into Windows after installing Ubuntu, how to fix?
1694
How do I set the grub timeout and the grub default boot entry?
124743
Need Help Fixing Grub after Installing Ubuntu 13.04 x64 Alongside Windows 8 on a Lenovo IdeaPad Y400 with UEFI
106283
Boot hangs after installing the latest driver from PPA and Ctrl+Alt+F1 keyboard shortcut doesn't work