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Official port linux-cachyos-bore and linux-cachyos-bore-lto for Fedora

linux-cachyos-bore and linux-cachyos-bore-lto uses as default the BORE scheduler


  • Choose between LLVM/LTO or GCC.
  • Improved BFQ Scheduler.
  • Back-ported patches from linux-next.
  • MEMCG MG LRU Patchset.
  • Latency Nice Patchset included usuage with ananicy-cpp feature branch.
  • Scheduler patches from linux-next/tip.
  • rcu fixes and improvements.
  • printk patches.
  • BBRv2 tcp_congestion_control.
  • Latest & improved ZSTD patch-set.
  • Latest BTRFS/XFS/EXT4 improvements & fixes.
  • AMD PSTATE EPP Driver enabled by default and with enhancements patches/fixes.
  • Clearlinux Patchset.
  • Futex fixes and winesync is available.
  • OpenRGB and ACS Override support.
  • HDR Patches for AMD GPU's and gamescope
  • KVM Performance Improvement from Yu Zhao
  • Objtool Patches to reduce the memory usage
  • (NEW!) Default support for Steam Deck.
  • UserKSM daemon from pf.
  • GPLv2 license.
  • GitHub copr-linux-cachyos.

Checking for the cpu support

Check support by the following the command

/lib64/ --help | grep "(supported, searched)"

If it does not detect x86_64_v3 support do not install the kernel. Otherwise you will end up with a non-functioning operating system!

Install drivers for lto kernel

If you build external modules (e.g. for Nvidia graphics card drivers) and use the -lto kernel, you need to install the following dependencies:

sudo dnf install clang clang-devel llvm lld

Installation Instructions

sudo dnf copr enable bieszczaders/kernel-cachyos


sudo dnf install kernel-cachyos-bore


sudo dnf install kernel-cachyos-bore-lto


(NEW!) Install UKSMD.

Active Releases

The following unofficial repositories are provided as-is by owner of this project. Contact the owner directly for bugs or issues (IE: not bugzilla).

Release Architectures Repo Download Fedora 37 x86_64 (0)* Fedora 37 (0 downloads)

* Total number of packages downloaded in the last seven days.

This is a companion discussion topic for the original entry at

Since you copied the spec and excluded x86_64_v3, the description should also be changed, as it is outdated. The section on x86_64_v3 support you can safely remove. In addition, your repo does not contain a non-lto kernel, so this would also need to be modified. Of course, the link to the repository as well.

I only use it for testing purposes, so maybe it would be better to just remove the description and leave a link to the original copr repo or just leave as is now?