![GRUB doesn't show up on Windows 10 / Ubuntu 16.04 dual boot, although `update-grub` and `efibootmgr` seem to show both options - Ask Ubuntu GRUB doesn't show up on Windows 10 / Ubuntu 16.04 dual boot, although `update-grub` and `efibootmgr` seem to show both options - Ask Ubuntu](https://i.stack.imgur.com/p3isd.png)
GRUB doesn't show up on Windows 10 / Ubuntu 16.04 dual boot, although `update-grub` and `efibootmgr` seem to show both options - Ask Ubuntu
![ubuntu - Grub starts in command line after reboot and shows Windows files - Unix & Linux Stack Exchange ubuntu - Grub starts in command line after reboot and shows Windows files - Unix & Linux Stack Exchange](https://i.stack.imgur.com/iMDl1.png)
ubuntu - Grub starts in command line after reboot and shows Windows files - Unix & Linux Stack Exchange
![boot - ''grub-install failed, this is a fatal error' during the installation of second Ubuntu - Ask Ubuntu boot - ''grub-install failed, this is a fatal error' during the installation of second Ubuntu - Ask Ubuntu](https://i.stack.imgur.com/NnBIG.png)
boot - ''grub-install failed, this is a fatal error' during the installation of second Ubuntu - Ask Ubuntu
![grub2 - Add a grub menu entry that boots into my current install but with a different runlevel - Ask Ubuntu grub2 - Add a grub menu entry that boots into my current install but with a different runlevel - Ask Ubuntu](https://i.stack.imgur.com/MYoA1.png)