[Bug 1938983] Re: missing modules after 5.11.0-25-generic update

[MikeR]

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

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https://bugs.launchpad.net/bugs/1938983

Title:
  missing modules after 5.11.0-25-generic update

Status in initramfs-tools package in Ubuntu:
  Confirmed

Bug description:
  After updating to kernel 5.11.0-25-generic wireless driver failed to recognize WiFi card.
  Possible reasons/symptoms:
  $ sudo update-initramfs -u -k all
  update-initramfs: Generating /boot/initrd.img-5.11.0-25-generic
  W: Possible missing firmware /lib/firmware/i915/skl_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/bxt_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/kbl_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/glk_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/kbl_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/kbl_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/cml_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/icl_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/ehl_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/ehl_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/tgl_huc_7.5.0.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/tgl_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/tgl_huc_7.5.0.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/tgl_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/dg1_dmc_ver2_02.bin for module i915
  update-initramfs: Generating /boot/initrd.img-5.8.0-63-generic

  $ lsb_release -a
  LSB Version:	core-11.1.0ubuntu2-noarch:security-11.1.0ubuntu2-noarch
  Distributor ID:	Ubuntu
  Description:	July2021
  Release:	20.04
  Codename:	focal

  Workaround: connected Ethernet. (Inconvenient)

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