[Bug 1853982] Re: Resume fails when UUID= syntax used in conf.d/resume

[Benjamin Drung]

*** This bug is a duplicate of bug 1769297 ***
    https://bugs.launchpad.net/bugs/1769297

This particular bug has already been reported and is a duplicate of bug
#1769297, so it is being marked as such. Please look at the other bug
report to see if there is any missing information that you can provide,
or to see if there is a workaround for the bug. Additionally, any
further discussion regarding the bug should occur in the other report.
Feel free to continue to report any other bugs you may find.

** Also affects: initramfs-tools (Ubuntu Noble)
   Importance: Undecided
       Status: New

** This bug has been marked a duplicate of bug 1769297
   resume from hibernation broken when resume image is autodetected

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https://bugs.launchpad.net/bugs/1853982

Title:
  Resume fails when UUID= syntax used in conf.d/resume

Status in initramfs-tools package in Ubuntu:
  Triaged
Status in initramfs-tools source package in Noble:
  New

Bug description:
  I've having this issue on Bionic, but it appears that Focal still has
  this issue (and its probably been there for years).  This can easily
  be reproduced by starting with a system on which hibernation is
  working using the resume=UUID=... kernel parameter.  Then create the
  file /etc/initramfs-tools/conf.d/resume with contents RESUME=UUID=...
  Next regenerate the initrd and remove the resume= kernel parameter.
  Now hibernate the machine and when booted back up resume will fail.
  This contradicts expected behavior noted in the documentation.

  This is because there is a bug on this line
  https://git.launchpad.net/ubuntu/+source/initramfs-
  tools/tree/scripts/local-premount/resume?h=ubuntu/focal#n35. The
  variable resume is of the form UUID=..., but of course readlink
  doesn't understand that.  I've fixed this by inserting the line
  'resume=${DEV}' above line 35.

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