GRUB

pacman -S grub pacman -S efibootmgr

grub-install —target=x86_64-efi —efi-directory=esp —bootloader-id=GRUB

grub-mkconfig -o /boot/grub/grub.cfg or arch-chroot /mnt grub-mkconfig -o /boot/grub/grub.cfg

sudo nano /etc/default/grub Find the line that starts with GRUB_CMDLINE_LINUX and add “root=UUID=your_root_partition_UUID” to it, replacing “your_root_partition_UUID” with the actual UUID of your root partition. example:

GRUB_DEFAULT=0 GRUB_TIMEOUT=5 GRUB_DISTRIBUTOR=“Arch” GRUB_CMDLINE_LINUX_DEFAULT=“loglevel=3 quiet initrd=/amd-ucode.img root=UUID=your_root_partition_UUID” You can also use the ls -l /dev/disk/by-uuid/ command to find the UUID of your root partition.

sudo grub-mkconfig -o /boot/grub/grub.cfg reboot and check