[Bug 2159678] Re: Noble nova package has misaligned phasing breaks install

Edward Hope-Morley 2159678 at bugs.launchpad.net
Mon Jul 6 18:34:07 UTC 2026


should I be seeing this resolved already or do i need to wait? I just
tried again and its still not working:

# apt update; apt install python3-nova
Hit:1 http://security.ubuntu.com/ubuntu noble-security InRelease
Hit:2 http://archive.ubuntu.com/ubuntu noble InRelease
Hit:3 http://archive.ubuntu.com/ubuntu noble-updates InRelease
Hit:4 http://archive.ubuntu.com/ubuntu noble-backports InRelease
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
33 packages can be upgraded. Run 'apt list --upgradable' to see them.
Reading package lists... Done
Building dependency tree... Done
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:
 python3-nova : Depends: nova-common (= 3:29.2.0-0ubuntu1.8) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

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https://bugs.launchpad.net/bugs/2159678

Title:
  Noble nova package has misaligned phasing breaks install

Status in nova package in Ubuntu:
  Fix Released

Bug description:
  Currently if I install python3-nova on Ubuntu Noble I get:

  # apt install python3-nova
  Reading package lists... Done
  Building dependency tree... Done
  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:
   python3-nova : Depends: nova-common (= 3:29.2.0-0ubuntu1.8) but it is not going to be installed
  E: Unable to correct problems, you have held broken packages.

  Indeed the version of nova-common available is:

  # apt-cache policy nova-common
  nova-common:
    Installed: (none)
    Candidate: 3:29.2.0-0ubuntu1.7
    Version table:
       3:29.2.0-0ubuntu1.7 500
          500 http://security.ubuntu.com/ubuntu noble-security/main amd64 Packages
          100 /var/lib/dpkg/status
       3:29.0.1-0ubuntu1 500
          500 http://archive.ubuntu.com/ubuntu noble/main amd64 Packages

  
  Both of these packages are part of https://launchpad.net/ubuntu/+source/nova/3:29.2.0-0ubuntu1.8

  These packages have been undergoing update phasing and according to
  https://launchpad.net/ubuntu/noble/amd64/nova-common that package  is
  at "50% of users". Since these packages are hard requirements on each
  other they should be aligned with phases to avoid becoming stuck like
  this.

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