How to Install Omarchy OS Manually on a Separate Partition: Keep Dual Boot with GRUB
arch linux hyprland linux omarchy
Omarchy OS does elevate your Linux desktop experience to a new level, but the trade‑off is you have to give up your full storage drive to install Omarchy OS. Now, the question remains: can you install Omarchy OS manually on a partition? The answer is YES. But it's a lot more complicated than simply yes. Let's find out..
Welcome back to MusaBase! In the Omarchy OS Installation guide, we successfully installed Omarchy OS with its official ISO and booted into it. But the problem with the Omarchy OS auto‑installer is that we have to give it the full storage drive. It erases any pre‑existing data and partitions, then creates Omarchy's own needed filesystem. Plus, dual‑booting is somewhat difficult to achieve with the Limine bootloader that Omarchy picks. So, I decided to test installing Omarchy OS manually with GRUB as the bootloader and on a disk partition of my choice.
By the end of this guide, you will have a fully functional, manually installed Omarchy OS on your system, and it will even be capable of dual‑booting. We'll cover:
- Installing Omarchy OS on a pre-installed Arch Linux system with btrfs filesystem.
- Install all the necessary packages for Omarchy OS.
- Replacing the Limine bootloader with GRUB.
- Implementing Omarchy's official rollback feature with manual Omarchy OS installation.
- And finally, booting into the manually installed Omarchy OS on top of your Arch Linux system.








