possible workaround:
open https://anduin.linuxfromscratch.org/sources/linux-firmware/i915/
and then either
1. select the missing files and download them to /lib/firmware/i915/
or
2. download the entire directory to a temporary location, and create a shell file from the list of missing files to copy only the missing files to /lib/firmware/i915
(thats what I did, as it seemed safer)
then try "$ sudo update-initramfs -u -k all" (without the quotes.)
NOT a clean solution, but it got rid of the error messages.
Else: wait for a supported solution
possible workaround: /anduin. linuxfromscratc h.org/sources/ linux-firmware/ i915/
open https:/
and then either
1. select the missing files and download them to /lib/firmware/i915/
or
2. download the entire directory to a temporary location, and create a shell file from the list of missing files to copy only the missing files to /lib/firmware/i915
(thats what I did, as it seemed safer)
then try "$ sudo update-initramfs -u -k all" (without the quotes.)
NOT a clean solution, but it got rid of the error messages.
Else: wait for a supported solution