[Bug 1953407] Re: [MIR] lz4 (again!)

Lukas Märdian 1953407 at bugs.launchpad.net
Tue Dec 7 08:28:36 UTC 2021


This is about the lz4 binary package. src:lz4 is in main already.

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Title:
  [MIR] lz4 (again!)

Status in lz4 package in Ubuntu:
  New

Bug description:
  Between the xenial (16.04) and hirsute (21.04) releases, lz4 was in
  main, and after 2019 was used by default for initramfs compression. In
  impish onwards, that compression was changed to zstd by default and
  lz4 was demoted to universe.

  Unfortunately, zstd is unsuitable for low-memory / slow platforms such
  as the relatively new Pi Zero 2 (or the older 3A+) which both have
  only 512MB of RAM (see LP: #1950214 for further details). As such, we
  need lz4 back in main to support (at least) the Pi images.

  As this could be considered a re-hash of the previous MIR in LP:
  #1531923, I've not (yet) included the usual MIR sections as I'm not
  sure a full (re-)review is required? If it is, I'm happy to provide an
  updated set.

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