[Bug 1927779] Re: MODULES=list results in error

[Dan Streetman]

ubuntu at lp1927779-g:~$ dpkg -l | grep initramfs-tools
ii  initramfs-tools                0.137ubuntu12                       all          generic modular initramfs generator (automation)
ii  initramfs-tools-bin            0.137ubuntu12                       amd64        binaries used by initramfs-tools
ii  initramfs-tools-core           0.137ubuntu12                       all          generic modular initramfs generator (core tools)
ubuntu at lp1927779-g:~$ grep MODULES= /etc/initramfs-tools/initramfs.conf 
MODULES=list
ubuntu at lp1927779-g:~$ sudo update-initramfs -u
update-initramfs: Generating /boot/initrd.img-5.8.0-53-generic
find: ‘/var/tmp/mkinitramfs_6itbCp/lib/modules/5.8.0-53-generic/kernel’: No such file or directory

ubuntu at lp1927779-g:~$ dpkg -l | grep initramfs-tools
ii  initramfs-tools                0.137ubuntu12.1                     all          generic modular initramfs generator (automation)
ii  initramfs-tools-bin            0.137ubuntu12.1                     amd64        binaries used by initramfs-tools
ii  initramfs-tools-core           0.137ubuntu12.1                     all          generic modular initramfs generator (core tools)
ubuntu at lp1927779-g:~$ grep MODULES= /etc/initramfs-tools/initramfs.conf 
MODULES=list
ubuntu at lp1927779-g:~$ sudo update-initramfs -u
update-initramfs: Generating /boot/initrd.img-5.8.0-53-generic
ubuntu at lp1927779-g:~$ 


** Tags removed: verification-needed-groovy
** Tags added: verification-done-groovy

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https://bugs.launchpad.net/bugs/1927779

Title:
  MODULES=list results in error

Status in initramfs-tools package in Ubuntu:
  Fix Released
Status in initramfs-tools source package in Bionic:
  Invalid
Status in initramfs-tools source package in Focal:
  Fix Committed
Status in initramfs-tools source package in Groovy:
  Fix Committed

Bug description:
  [impact]

  setting MODULES=list in /etc/initramfs-tools/initramfs.conf results in
  an error/warning when running update-initramfs

  [test case]

  edit initramfs.conf to change MODULES=list and run update-initramfs:

  $ grep MODULES /etc/initramfs-tools/initramfs.conf
  # MODULES: [ most | netboot | dep | list ]
  MODULES=list
  $ sudo update-initramfs -u
  update-initramfs: Generating /boot/initrd.img-5.8.0-48-generic
  find: ‘/var/tmp/mkinitramfs_Yr04uh/lib/modules/5.8.0-48-generic/kernel’: No such file or directory

  [regression potential]

  any regression would likely result in an initramfs that did not
  include the correct/required modules, and/or failure to build a new
  initramfs

  [scope]

  this is needed for f and g.

  this is not fixed in debian, but is fixed in h and i.

  the code in b is different and doesn't include this bug, so this
  doesn't apply to b.

  for debian, MR open:
  https://salsa.debian.org/kernel-team/initramfs-tools/-/merge_requests/48

  [other info]

  this caused some of the 'amd64-*' autopkgtests to fail in h until it
  was fixed. those autopkgtests don't exist in g and earlier so this was
  not noticed until now.

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