[Bug 1929125] Re: lib32z1 cannot be installed on ubuntu 20.04 LTS

[Hans Joachim Desserud]

*** This bug is a duplicate of bug 1926918 ***
    https://bugs.launchpad.net/bugs/1926918

>My mind somehow converted 2.33 into 2.3.3

No problem. I had to double check the numbers, so I can see why you came
to that conclusion :)

> libc6-i386 : Depends: libc6 (= 2.31-0ubuntu9.2) but 2.31-0ubuntu9.3 is
to be installed

Ok, so this explains things. This is a known issue, already reported as
bug 1926918. The short version is that 2.31-0ubuntu9.3 was released as
an upgrade, but some regresions were discovered so the upgrade was
removed again. In the meantime, people who installed it before it was
removed might run into issues when attempting to install new libc*
packages because the versions doesn't matched with what is already
installed.

While I haven't tried it myself, the other bug report also suggests
manually installing/going back to version 2.31-0ubuntu9.2. I would check
the output of the command before running it in case it affects (or tries
to remove) other packages, though that sounds unlikely as it is undoing
an upgrade which no longer exists to go back to the previous version.

** This bug has been marked a duplicate of bug 1926918
   cannot install libc6-dev, requires old libc6 version

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https://bugs.launchpad.net/bugs/1929125

Title:
  lib32z1 cannot be installed on ubuntu 20.04 LTS

Status in zlib package in Ubuntu:
  Confirmed

Bug description:
  I am using Ubuntu 20.04 LTS. When trying to install lib32z1, I get the
  following error:

  The following packages have unmet dependencies:
   lib32z1 : Depends: libc6-i386 (>= 2.4) but it is not going to be installed
  E: Unable to correct problems, you have held broken packages.

  lib32z1 (https://packages.ubuntu.com/focal/lib32z1) depends on
  libc6-i386 (>= 2.4) but the latest version of libc6-i386 I can find
  for Ubuntu is 2.33 (https://packages.ubuntu.com/impish/libc6-i386)

  Is it possible Ubuntu is asking for a version of a dependency so high
  that it doesn't even exist?

  The reason I'm installing a 32-bit package is it's required for
  Android Studio installation process:
  https://developer.android.com/studio/install#linux

  ---

  apt-cache policy libc6-i386

  libc6-i386:
    Installed: (none)
    Candidate: 2.31-0ubuntu9.2
    Version table:
       2.31-0ubuntu9.2 500
          500 http://ca.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages
       2.31-0ubuntu9 500
          500 http://ca.archive.ubuntu.com/ubuntu focal/main amd64 Packages

  apt-cache policy lib32z1

  lib32z1:
    Installed: (none)
    Candidate: 1:1.2.11.dfsg-2ubuntu1.2
    Version table:
       1:1.2.11.dfsg-2ubuntu1.2 500
          500 http://ca.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages
       1:1.2.11.dfsg-2ubuntu1 500
          500 http://ca.archive.ubuntu.com/ubuntu focal/main amd64 Packages

  lsb_release -rd

  Description:	Ubuntu 20.04.2 LTS
  Release:	20.04

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