1. BEFORE INSTALL Microcode update

pacman -S intel-ucode pacman -S amd-ucode

1. Grub

pacman -S grub efibootmgr dosfstools os-prober mtools

nvim /etc/default/grub

• change enable_cryptodisk

cmdline "loglevel=3 cryptdevice=/dev/sda3:volgroup0:allow-discards quiet"

mkdir /boot/EFI mount /dev/sda1 /boot/EFI

grub-install --target=x86_64-efi --bootloader-id=grub_uefi --recheck

mkdir /boot/grub/locale cp /usr/share/locale/en\@quot/LC_MESSAGES/grub.mo /boot/grub/locale/en.mo grub-mkconfig -o /boot/grub/grub.cfg

1. Refind

pacman -S refind refind-install