So, after installing Ubuntu, I was having problems with the Plymouth splash screen- it was not showing up during booting, nor when I shut my PC down. Sometimes it did show, but very rarely and only for a sec!
Then I found this link to a post who had similar problems; I myself have an Intel built-in graphics card, so followed the instructions given in that post(this one), and my problem has now been resolved...
But during the troubleshooting, I got some warning/error messages that shows something like this:
sudo update-initramfs -u
update-initramfs: Generating /boot/initrd.img-4.10.0-28-generic
W: Possible missing firmware /lib/firmware/i915/kbl_dmc_ver1_01.bin for module i915
What's with this missing firmware? I got the same message for some other commands too while troubleshooting Plymouth...
If anyone could clarify why this message is showing up I would very much appreciate it...
Thanks in advance...