[Bug 1977493] Re: Upgrade from Ubuntu 21.10 to 22.04 fails - unmet dependencies: libpam-modules

Fri Jun 3 15:00:08 UTC 2022

Well, it's a bit difficult to give remote recommendation for a system in this state.
(Ideally I want to login to it by myself ...)

It would be good to know how many of the installed packages are still
packages from impish, and how many already from jammy.

One, may try to move forward to jammy (and forcing it),
but I think it's better to be careful and go one step back first of all.

So I would replace all occurrences of jammy in /etc/apt/sources.list back to impish
and do an 'apt clean' and 'apt update'.

Now I provoked a /similar/ situation like yours by manually downloading
the jammy package and force installing it:

$ wget http://launchpadlibrarian.net/592653998/libpam-modules-
bin_1.4.0-11ubuntu2_s390x.deb

$ sudo dpkg -i --force-depends ./libpam-modules-bin_1.4.0-11ubuntu2_s390x.deb
(Reading database ... 83842 files and directories currently installed.)
Preparing to unpack .../libpam-modules-bin_1.4.0-11ubuntu2_s390x.deb ...
Unpacking libpam-modules-bin (1.4.0-11ubuntu2) over (1.3.1-5ubuntu11) ...
Setting up libpam-modules-bin (1.4.0-11ubuntu2) ...
Processing triggers for man-db (2.9.4-2) ...

After that apt full-upgrade shows the same error like on your system:

$ sudo apt full-upgrade
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
You might want to run 'apt --fix-broken install' to correct these.
The following packages have unmet dependencies:
 libpam-modules : PreDepends: libpam-modules-bin (= 1.3.1-5ubuntu11) but 1.4.0-11ubuntu2 is installed
                  Recommends: update-motd but it is not installed
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).

Now - since we want to go back to impish - the opposite can be done to
solve the situation, means forcing the installation of the impish
package:

$ wget http://launchpadlibrarian.net/558628390/libpam-modules-
bin_1.3.1-5ubuntu11_s390x.deb

$ sudo dpkg -i --force-depends ./libpam-modules-bin_1.3.1-5ubuntu11_s390x.deb
dpkg: warning: downgrading libpam-modules-bin from 1.4.0-11ubuntu2 to 1.3.1-5ubuntu11
(Reading database ... 83840 files and directories currently installed.)
Preparing to unpack .../libpam-modules-bin_1.3.1-5ubuntu11_s390x.deb ...
Unpacking libpam-modules-bin (1.3.1-5ubuntu11) over (1.4.0-11ubuntu2) ...
Setting up libpam-modules-bin (1.3.1-5ubuntu11) ...
Processing triggers for man-db (2.9.4-2) ...

After that apt is happy again:

$ sudo apt full-upgrade
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
The following packages were automatically installed and are no longer required:
  apport-symptoms eatmydata libavahi-core7 libdaemon0 libeatmydata1
  libregexp-assemble-perl libwrap0 python3-debconf python3-jinja2
  python3-json-pointer python3-jsonpatch python3-jsonschema python3-markupsafe
  python3-pyrsistent python3-systemd squashfs-tools
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

(Please notice that forcing packages is usually a bad idea and can break
the packaging system, and should only be done with caution and in rare
corner cases!)

And it could be that more packages are affected and in such a 'limbo' state,
so further steps like this might be needed.

Once apt doesn't report further issues, and a
sudo apt update && sudo apt full-upgrade
runs fine and you ideally restarted the system afterwards,
it might be the time for a new "do-release-upgrade' ideally in a screen session,
in case the connection breaks and to save the output).

(But please think about a backup before doing all this ....)

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https://bugs.launchpad.net/bugs/1977493

Title:
  Upgrade from Ubuntu 21.10 to 22.04 fails - unmet dependencies: libpam-
  modules

Status in Ubuntu on IBM z Systems:
  Incomplete
Status in pam package in Ubuntu:
  Incomplete

Bug description:
  ---Problem Description---
  Upgrade from Ubuntu 21.10 to 22.4 fails

  I run do-release-upgrade and I got a message upgrade completed with
  errors. I rebooted the server and it is now in an undefined state
  between 21.10 and 22.04. Not all packages have been installed. I
  attach apt log and output of some commands:

  root at tuxmaker:~# cat /etc/os-release 
  PRETTY_NAME="Ubuntu 21.10"
  NAME="Ubuntu"
  VERSION_ID="21.10"
  VERSION="21.10 (Impish Indri)"
  VERSION_CODENAME=impish
  ID=ubuntu
  ID_LIKE=debian
  HOME_URL="https://www.ubuntu.com/"
  SUPPORT_URL="https://help.ubuntu.com/"
  BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
  PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
  UBUNTU_CODENAME=impish

  root at tuxmaker:~# do-release-upgrade 
  Checking for a new Ubuntu release
  Please install all available updates for your release before upgrading.

  root at tuxmaker:~# apt dist-upgrade
  Reading package lists... Done
  Building dependency tree... Done
  Reading state information... Done
  You might want to run 'apt --fix-broken install' to correct these.
  The following packages have unmet dependencies:
   libpam-modules : PreDepends: libpam-modules-bin (= 1.3.1-5ubuntu11) but 1.4.0-11ubuntu2 is installed
                    Recommends: update-motd but it is not installed
  E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).

  root at tuxmaker:~# apt --fix-broken install
  Reading package lists... Done
  Building dependency tree... Done
  Reading state information... Done
  Correcting dependencies... Done
  The following additional packages will be installed:
    libpam-modules
  The following packages will be upgraded:
    libpam-modules
  1 upgraded, 0 newly installed, 0 to remove and 1208 not upgraded.
  4 not fully installed or removed.
  Need to get 0 B/279 kB of archives.
  After this operation, 1,024 B disk space will be freed.
  Do you want to continue? [Y/n] y
  Preconfiguring packages ...
  (Reading database ... 401827 files and directories currently installed.)
  Preparing to unpack .../libpam-modules_1.4.0-11ubuntu2_s390x.deb ...
  dpkg: error processing archive /var/cache/apt/archives/libpam-modules_1.4.0-11ubuntu2_s390x.deb (--unpack):
   new libpam-modules:s390x package pre-installation script subprocess returned error exit status 2
  Errors were encountered while processing:
   /var/cache/apt/archives/libpam-modules_1.4.0-11ubuntu2_s390x.deb
  E: Sub-process /usr/bin/dpkg returned an error code (1)

  Contact Information = ppohl at de.ibm.com 

  ---uname output---
  Linux tuxmaker 5.13.0-44-generic #49-Ubuntu SMP Wed May 18 13:30:03 UTC 2022 s390x s390x s390x GNU/Linux

  Machine Type = z15, 8561-701 

  ---boot type---
  upgade

  ---Kernel cmdline used to launch install---
  do-release-upgrade

  ---Install repository type---
  Internet repository

  ---Install repository Location---
  http://ports.ubuntu.com:80/

  ---Point of failure---
  Other failure during installation (stage 1)

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