[Bug 1847946] Re: initramfs contains modprobe blacklist from all installed kernel versions

[Benjamin Drung]

Still seen on Ubuntu 24.04 (noble):

```
$ 3cpio -t /boot/initrd.img | grep blacklist_linux
usr/lib/modprobe.d/blacklist_linux_6.8.0-44-generic.conf
usr/lib/modprobe.d/blacklist_linux_6.8.0-45-generic.conf
```

** Tags added: noble

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https://bugs.launchpad.net/bugs/1847946

Title:
  initramfs contains modprobe blacklist from all installed kernel
  versions

Status in initramfs-tools package in Ubuntu:
  Confirmed

Bug description:
  # lsinitramfs /boot/initrd.img-5.3.0-18-generic | fgrep usr/lib/modprobe.d
  usr/lib/modprobe.d
  usr/lib/modprobe.d/aliases.conf
  usr/lib/modprobe.d/blacklist_linux_5.3.0-13-generic.conf
  usr/lib/modprobe.d/blacklist_linux_5.3.0-17-generic.conf
  usr/lib/modprobe.d/blacklist_linux_5.3.0-18-generic.conf
  usr/lib/modprobe.d/fbdev-blacklist.conf
  usr/lib/modprobe.d/systemd.conf

  I don't think this is the intended behavior.

  The blacklists may have same contents most of the times. But when they
  don't, (user changed kernel package/flavor/etc.) this may cause
  unexpected issues.

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