Install grub manually ubuntu

Create the directory where grub would install its files: mkdir -p /boot/efi If it already exists, then skip to step 8. Mount the efi partition from step 3: mount /dev/sdXY2 /boot/efi Install grub to the external hard drive: grub-install /dev/sdX Update grub: update-grub Find the UUID of the efi partition (aka 'vfat') and note it down: blkid or.  · Set up the GRUB files into /boot/grub and place them in the boot track: So, if we jump onto a command line here and we login the /boot/grub/ directory and grep 1_5. We see a bunch of file system-specific stage boot loaders. Estimated Reading Time: 6 mins.  · sudo grub-install --boot-directory=/mnt/@/boot /dev/sdX # Example: sudo grub-install --boot-directory=/mnt/@/boot /dev/sda. For GRUB 2 version and earlier (Ubuntu ), the installation command is slightly different. Rather than designating the --boot-directory, the switch is --root-directory. In this case, the location changes to /mnt.

grub-install is straightforward enough. What I can't figure out, and can find no source which addresses, is how to install Grub with grub-install and get a system which boots with secure boot enabled. Goodness knows I've looked. Have read the Grub Manual, the grub-install man page, Rod Smith, Ubuntu Help, and dozens of articles. Will mention, I. The second OS (Ubuntu ) also installed its own grub and now the grub screen is controlled by Ubuntu grub. On the second disk, I installed MX Linux but I didn't install grub this time. I want the existing grub (controlled by Ubuntu ) to handle all the OS entries. Creating the GRUB 2 Menuentry. There are several methods to create a GRUB 2 menuentry which will boot an Ubuntu ISO. Two options are provided below - using the grml-rescueboot package to automatically create the menuentry, or manually editing the GRUB 2 configuration scripts/files.. There is also a method to create USB [multi]boot pendrives (almost) automatically, grub-n-iso_multiboot.

$ grep grub-install mk-grub-n-iso grub-install --force --removable --no-floppy --boot-directory=/mnt/target/boot --efi-directory=/mnt/target/EFI/BOOT "$2" grub-install --force --removable --no-floppy --boot-directory=/mnt/target/boot "$2" This tool works in an Ubuntu family operating system of version LTS or newer. (It is possible to use Ubuntu LTS too, but it has an older version of grub, and this method works only for BIOS mode.). Possible Duplicate: How to manually install boot loader? Grub failure when installing alongside Windows 7 (50 GB partition for ), need to manually install bootloader. By using GRUB prompt you can boot an operating system manually inside internal or external hard disk drive in any partition. Later, by successfully boot a GNU/Linux operating system with GRUB prompt, you may install the GRUB bootloader from the operating system.