[Bug 2052669] Re: update-initramfs: Generating /boot/initrd.img-5.15.0-92-generic E: /usr/share/initramfs-tools/hooks/btrfs failed with return 1. update-initramfs: failed for /boot/initrd.img-5.15.0-92-generic with 1.

[Benjamin Drung]

Thank you for taking the time to report this bug and helping to make
Ubuntu better. From your description it is hard to tell if you
experienced one or multiple bugs. Does running "update-initramfs -u -k
{version}" succeed?

** Changed in: initramfs-tools (Ubuntu)
       Status: New => Incomplete

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Title:
  update-initramfs: Generating /boot/initrd.img-5.15.0-92-generic E:
  /usr/share/initramfs-tools/hooks/btrfs failed with return 1. update-
  initramfs: failed for /boot/initrd.img-5.15.0-92-generic with 1.

Status in initramfs-tools package in Ubuntu:
  Incomplete

Bug description:
  My bare metal server would not restart. After some research, I found
  out that I get the following error:

      "Kernel Panic - not syncing: VFS: Unable to mount root fs on
  unknown-block(0,0)"

  I started up in a Rescue, and followed the steps in
  https://askubuntu.com/a/41939/36315, to "update-initramfs -u -k
  {version}".

  Then I got the below message:

  update-initramfs: Generating /boot/initrd.img-5.15.0-92-generic
  E: /usr/share/initramfs-tools/hooks/btrfs failed with return 1.
  update-initramfs: failed for /boot/initrd.img-5.15.0-92-generic with 1.

  I found a workaround for it: https://askubuntu.com/a/916283/36315

     "sudo chmod -x /usr/share/initramfs-tools/hooks/fixrtc"

  I did that for every file in usr/share/initramfs-tools/hooks/*

  After that I did

      update-initramfs -u -k all
      update-grub

  I rebooted from Rescue, and then I got the following error:

      "Kernel Panic - not syncing: No working init found. Try passing
  init= option to kernel."

  AFter this, I reinstalled Ubuntu 22.04 on my bare metal server, but
  even after reinstall, I get the "No working init found" error message.

  I have no idea now how to fix this.

  Any help is greatly appreciated!

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