Hello Eric, Let's try to narrow it down. Can you please try "lsinitramfs" on the initrd image that your kernel is supposed to be loading at boot?
lsinitramfs /boot/initrd.img* | grep -i microcode | head Also, can you check whether you are using "initramfs-tools", or "dracut" to generate the initramfs ? dpkg -s dracut initramfs-tools -- Henrique de Moraes Holschuh <h...@debian.org>