[Bug 1800526] Re: After Upgrading from 18.04.1 to 18.10 librdb1 can not be installed

[Dimitri John Ledkov]

It appears that it was intended to upgrade librados2 to 13.2.1 but that
did not happen during cosmic release cycle, thus it ended up release
with 12.2.4, whilst bionic got 12.2.7 and is about to get 12.2.8.

A bit of a mess.

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https://bugs.launchpad.net/bugs/1800526

Title:
  After Upgrading from 18.04.1 to 18.10 librdb1 can not be installed

Status in ceph package in Ubuntu:
  New

Bug description:
  This issue was discovered while attempting to setup KVM on s390 after
  upgrading an 18.04.1 server to 18.10

  librbd1 : Depends: librados2 (= 12.2.4-0ubuntu1.1build1) but
  12.2.7-0ubuntu0.18.04.1 is to be installed

  It appears to be s390 specific, as I was not able to reproduce the
  failure using an x86_64 lxc.

  Reproduction steps:
  1. Deploy 18.04
  2. sudo apt-get update
  3. sudo apt-get upgrade
  -- lsb_release -d nows shows 'Ubuntu 18.04.1 LTS' --
  4. set 'prompt=normal' in /etc/update-manager/release-upgrades
  5. sudo do-release-upgrade
  6. sudo reboot now

  7. sudo apt-get install librbd1

  
  ubuntu at s5lp8:~$ sudo apt-get install librbd1
  Reading package lists... Done
  Building dependency tree
  Reading state information... Done
  Some packages could not be installed. This may mean that you have
  requested an impossible situation or if you are using the unstable
  distribution that some required packages have not yet been created
  or been moved out of Incoming.
  The following information may help to resolve the situation:

  The following packages have unmet dependencies:
   librbd1 : Depends: librados2 (= 12.2.4-0ubuntu1.1build1) but 12.2.7-0ubuntu0.18.04.1 is to be installed
  E: Unable to correct problems, you have held broken packages.

  ubuntu at s5lp8:~$ apt-cache policy librbd1
  librbd1:
    Installed: (none)
    Candidate: 12.2.4-0ubuntu1.1build1
    Version table:
       12.2.4-0ubuntu1.1build1 500
          500 http://us.ports.ubuntu.com/ubuntu-ports cosmic/main s390x Packages

  ubuntu at s5lp8:~$ apt-cache policy librados2
  librados2:
    Installed: 12.2.7-0ubuntu0.18.04.1
    Candidate: 12.2.7-0ubuntu0.18.04.1
    Version table:
   *** 12.2.7-0ubuntu0.18.04.1 100
          100 /var/lib/dpkg/status
       12.2.4-0ubuntu1.1build1 500
          500 http://us.ports.ubuntu.com/ubuntu-ports cosmic/main s390x Packages

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