OmenLinuxGitHub

Windows → Linux

Get Linux on your OMEN

OmenPrep dumps your ACPI tables on Windows, patches them, and bakes the fix into a Linux install ISO - so first boot isn't a firmware wrestling match.

Download OmenPrep.exe
Source on GitHubFollow the guide

Latest release on GitHub Releases. Prefer patching by hand? Use the online ACPI patcher.

OmenPrep main window showing the Fix my laptop for Linux button
OmenPrep - one button for the common path; Advanced for dump / patch / inject step by step.

What you need

  • HP OMEN laptop still running Windows
  • A stock Linux ISO (Fedora, Ubuntu, or Arch preferred)
  • USB stick, 8 GB or larger
  • Rufus, Etcher, or dd to flash
Fedora WorkstationTested
Ubuntu desktopTested
ArchTested
Other ISOsLikely - needs a normal initrd (casper / LiveOS)

How it works

  1. Grab OmenPrep

    Download the Windows exe from Releases. You need the OMEN on Windows, a stock Linux ISO, and an 8GB+ USB stick.

  2. Run OmenPrep on the laptop

    You're reading this on the site - the actual work happens in the Windows app. Open OmenPrep, hit Fix my laptop for Linux, pick your ISO, and save the -omen.iso. Same DSDT patches as the online tool, baked into the install media.

  3. Flash in DD mode

    Write that file to the USB with Rufus (DD mode), Etcher, or dd. Hybrid images break if you use ISO mode in Rufus.

  4. Install normally

    Boot the stick in UEFI (Secure Boot off for the first install is easiest). Install Fedora, Ubuntu, or Arch like any other machine.

  5. Lock it in

    Before you leave the live session - and once more after reboot - run the scripts from the stick so ACPI survives and RGB can build.

OmenPrep progress while building the patched ISO
Progress while dump → patch → inject runs.
OmenPrep Advanced panel
Advanced panel if you want each step alone.

After install - don't skip this

Still in the live session, with your new root mounted at /mnt, run the ACPI apply script from the stick. Paths differ by distro - Ubuntu often has the ISO at /cdrom; Fedora usually under /run/media.

Live session

Stages the patched DSDT and GRUB/initrd hooks so the first boot into the installed system already carries the ACPI override.

# Ubuntu live
sudo bash /cdrom/apply-omen-acpi.sh /mnt

# Fedora live
sudo bash /run/media/$USER/*/apply-omen-acpi.sh /mnt
apply-omen-acpi

Installed system

Reboot into Linux, mount the USB again, then run post-install. That locks ACPI for future kernels, tries to un-stick Intel from simpledrm on newer Fedora, and builds the RGB DKMS module when headers exist.

sudo bash /run/media/$USER/*/post-install-omen.sh
# Ubuntu-ish:
sudo bash /media/$USER/*/post-install-omen.sh

Flags if you only want one piece: --acpi-only, --rgb-only, --gpu-only.

post-install-omen

Did it work?

After one more reboot, check that the kernel loaded the upgraded DSDT and that the RGB platform device is there.

verify

BIOS notes

Esc / F10 into setup: UEFI boot, Secure Boot off at least until things work. F9 for the one-shot boot menu if the stick doesn't show up.

Common problems

No EFI entry / stick won't boot
Reflash with Rufus DD mode. Don't reuse an old -omen.iso - patch again from the original ISO with a current build.
GRUB can't find /boot, or live crashes
Same fix: fresh patch + DD flash.
RGB missing
Need kernel-devel / headers matching uname -r. Try --rgb-only. Secure Boot may want a MOK enrollment for DKMS.
Desktop runs like a slideshow (Fedora)
Intel stuck on simpledrm. Run --gpu-only, reboot, check lspci -nnk for i915.
NVIDIA
Install akmod-nvidia from RPM Fusion yourself. Panel is usually on Intel; dGPU is offload - not something this tool handles.

More

Stuck mid-install? Ask on Discord or open an issue on the installer repo. Already on Linux and only need a DSDT? Use the browser ACPI patcher.

Download OmenPrep.exe
Build from source