Blog: real-ucode is now deprecated

real-ucode is now deprecated2026-01-12, 1min, License: CC BY-SA 4.0

Due to recent changes in Linux 6.18.4 regarding loading of microcode for AMD platforms I am deprecating real-ucode, since that was my primary usecase.

Steps to switch back to linux-firmware are noted below.

dnf update --refresh #drop the packages
dnf remove real-ucode #remove the meta package
dnf swap amd-ucode-firmware-resigned amd-ucode-firmware #switch back to official variant if on -resigned
grubby --update-kernel=ALL --remove-args="microcode.amd_sha_check=off" #enable sha check again if on -resigned
dnf distro-sync amd-ucode-firmware microcode_ctl #switch back to official variants
dnf update #ensure updated again
reboot now #only necessary if ran grubby command above to prevent conflict
dracut -f #regenerate initramfs
reboot now #finalize

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