[Bug 2035120] Re: cryptsetup autopkgtest fails with zstd compressed kernel modules

[Ubuntu Foundations Team Bug Bot]

The attachment "cryptsetup-support-zstd-kernel-modules.debdiff" seems to
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the attachment isn't a patch, please remove the "patch" flag from the
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** Tags added: patch

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https://bugs.launchpad.net/bugs/2035120

Title:
  cryptsetup autopkgtest fails with zstd compressed kernel modules

Status in cryptsetup package in Ubuntu:
  New
Status in cryptsetup source package in Mantic:
  New

Bug description:
  [Impact]

  cryptsetup is using a custom script to create an initramfs and include
  kernel modules, however it is encoding *.ko and now that we have zstd
  compressed modules in the kernel it fails to include the proper
  modules in the initramfs (since the modules are now called *.ko.zst).

  [Test case]

  Run cryptsetup autopkgtest.

  [Fix]

  Workaround this issue by unpacking all modules in a temporary extract
  directory, so that debian/tests/utils/mkinitramfs can support either
  compressed and uncompressed modules.

  [Regression potential]

  This change fixes the autopkgtest test case, it doesn't touch
  cryptsetup at all, so the only regressions that we can experience are
  in the autopkgtest.

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