[Bug 2100618] Re: dracut install removes flash-kernel

[Benjamin Drung]

Since flash-kernel depends on the existence of the /usr/sbin/update-
initramfs binary, updating flash-kernel to depend on (initramfs-tools |
dracut) is a solution.

Dracut "provides" the update-initramfs "interface", but it does not
"provide" the initramfs-tools "interface". Such initramfs-tools
"interface" would need to provide support for the hooks and script as
defined in initramfs-tools. Dracut supports custom modules but they
differ to initramfs-tools in their interface.

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https://bugs.launchpad.net/bugs/2100618

Title:
  dracut install removes flash-kernel

Status in dracut package in Ubuntu:
  New

Bug description:
  Attempting to switch a plucky install on raspi to dracut attempts to
  remove flash-kernel (which is required to copy the generated initrd
  and other artifacts to the boot partition). This is because flash-
  kernel depends on initramfs-tools (which is going to be removed):

  $ sudo apt install dracut
  The following packages were automatically installed and are no longer required:
    devio  libiniparser4  libraspberrypi0  libubootenv-tool  libubootenv0.1  mtd-utils  u-boot-tools
  Use 'sudo apt autoremove' to remove them.

  Installing:
    dracut

  Installing dependencies:
    dracut-core

  Suggested packages:
    dracut-network  dmraid

  REMOVING:
    cloud-initramfs-copymods  cloud-initramfs-dyn-netconf  flash-kernel  initramfs-tools  overlayroot  ubuntu-server  ubuntu-server-raspi

  
  Given dracut now contains drop-in replacements for the various binaries provided by initramfs-tools, could dracut simply "Provide: initramfs-tools" (as well as linux-initramfs-tool as it currently does)?

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