raidwas@server:~$ sudo update-initramfs -u -k all
update-initramfs: Generating /boot/initrd.img-uname
W: Possible missing firmware /lib/firmware/i915/kbl_dmc_ver1.bin for module i915_bpo
W: mdadm: /etc/mdadm/mdadm.conf defines no arrays.
depmod: ERROR: Bad version passed uname
update-initramfs: Generating /boot/initrd.img--r
/usr/sbin/mkinitramfs: option requires an argument -- 'r'
W: non-GNU getopt
update-initramfs: failed for /boot/initrd.img--r with 1.