EFI boot manager
Update EFI Boot Manager. Add new bootloaders for Windows OS and Linux Mint OS # Print available disks (drives) and partitions lsblk -o name,UUID,partuuid,mountpoint # Assumption ## Windows OS bootloader is installed on /dev/nvme0n1 ## Linux OS bootloader is installed on /dev/nvme1n1 # Add Windows bootloader entry sudo efibootmgr -c -d /dev/nvme0n1 -p 1 -l \\EFI\\Microsoft\\Boot\\bootmgfw.efi -L "Windows Boot Manager" # Add Linux Mint bootloader entry # shimx64.efi supports SecureBoot sudo efibootmgr -c -d /dev/nvme1n1 -p 1 -l \\efi\\debian\\shimx64.efi -L "Linux Mint" # Print the bootloader list sudo efibootmgr # Output: ## BootCurrent: 0000 ## Timeout: 2 seconds ## BootOrder: 0000,0001,0019,0003,0010,0011,0012,0013,0017,0018,001A,001B,001C,001D,001E ## Boot0000* Linux Mint ## Boot0001* Windows Boot Manager ## Boot0003* ubuntu # Optional: Remove unused bootloaders ## Example: Remove the Boot0003* ubuntu bootloader ## First, inactivate Boot0003 (ID 3) ## sudo efibootmgr -b 3 -A ## Finally, remove Boot0003 (ID 3) ## sudo efibootmgr -b 3 -B # Print the updated bootloader list ## sudo efibootmgr # Update the grub configuration sudo update-grub # Reboot and test