Arch Linux Guide

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Install Bootloader ​

TIP

When doing disk encryption, finish the steps on the encryption page. It will guide you back to the main installation when needed.

If you don't know which one you should use re-visit Live Setup/Check if booted in BIOS or UEFI

BIOS ​

bash
pacman -S grub
grub-install --target=i386-pc --recheck /dev/sdX
grub-mkconfig -o /boot/grub/grub.cfg

Enable OS Prober also applies here for enabling detection of other operating systems.

UEFI ​

You can choose between GRUB or systemd-boot for UEFI systems.

GRUB ​

bash
pacman -S grub efibootmgr dosfstools mtools gptfdisk fatresize
grub-install --target=x86_64-efi --bootloader-id=grub_uefi --efi-directory=/boot/efi --recheck
grub-mkconfig -o /boot/grub/grub.cfg

Enable OS Prober ​

To enable other OS detection

bash
pacman -S os-prober
sed -i 's/^#\?GRUB_DISABLE_OS_PROBER=.*/GRUB_DISABLE_OS_PROBER=false/' /etc/default/grub
grub-mkconfig -o /boot/grub/grub.cfg

See also https://wiki.archlinux.org/title/GRUB

systemd-boot ​

systemd-boot is a simple UEFI boot manager that integrates with systemd. It's already included with systemd.

bash
bootctl install

Create the loader configuration file:

bash
nano /boot/loader/loader.conf

Add the following:

default  arch
timeout  4
editor   0

Create a boot entry for Arch Linux. First, find your root partition's PARTUUID (or use the filesystem UUID):

bash
blkid -s PARTUUID -o value /dev/sdXn

Replace /dev/sdXn with your actual root partition device.

Create the boot entry:

bash
nano /boot/loader/entries/arch.conf

Add the following (replace <your-root-partition-uuid> with the PARTUUID from above). If your ESP is mounted at /boot/efi, ensure linux/initrd paths are correct for that mount:

title   Arch Linux
linux   /vmlinuz-linux
initrd  /intel-ucode.img  # or /amd-ucode.img
initrd  /initramfs-linux.img
options root=PARTUUID/<your-root-partition-uuid> rw

Note

If you're using encryption or other special configurations, you may need to adjust the options line (e.g. rd.luks.name=... root=/dev/mapper/...). Refer to the Arch Wiki for advanced configurations. Consider using systemd's kernel-install and unified kernel images (UKI) for automatic entry management.

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