[Bug 2150665] Re: cephadm: missing Depends on python3-ceph-common

utkarsh bhatt 2150665 at bugs.launchpad.net
Wed Apr 29 17:38:05 UTC 2026


Hit a second missing-dep on the same fresh-install path: cephadm
bootstrap chowns its runtime dirs to uid/gid 64045 (the ceph daemon
user) but that user is created by ceph-common's postinst, not by
cephadm itself. Without ceph-common installed, bootstrap aborts:

  RuntimeError: Failed command: install -d -m0770 -o 64045 -g 64045
    /var/run/ceph/<fsid>: install: invalid user: '64045'

Workaround: install ceph-common alongside cephadm.

Suggested fix: add ceph-common (or the package that creates the ceph
user) to cephadm's Depends in addition to python3-ceph-common.

-- 
You received this bug notification because you are a member of Ubuntu
OpenStack, which is subscribed to ceph in Ubuntu.
https://bugs.launchpad.net/bugs/2150665

Title:
  cephadm: missing Depends on python3-ceph-common

Status in ceph package in Ubuntu:
  New

Bug description:
  The cephadm binary package in resolute (20.2.0-0ubuntu2) imports
  ceph.cephadm.images at startup but does not declare a Depends on
  python3-ceph-common which provides that module. Running
  `cephadm bootstrap` (or any cephadm subcommand) on a fresh install
  fails immediately with:

    Traceback (most recent call last):
      File "/usr/sbin/cephadm", line 141, in <module>
        from cephadmlib import runscripts
      File "/usr/lib/python3/dist-packages/cephadmlib/runscripts.py", line 10, in <module>
        ...
      File "/usr/lib/python3/dist-packages/cephadmlib/container_types.py", line 12, in <module>
        from ceph.cephadm.images import DefaultImages
    ModuleNotFoundError: No module named 'ceph'

  Currently declared Depends are only `lvm2 | python3` per
  https://packages.ubuntu.com/resolute/cephadm.

  Reproducer (LXD VM):
    $ lxc launch --vm ubuntu:26.04 c1
    $ lxc shell c1 -- apt-get update
    $ lxc shell c1 -- apt-get install -y cephadm
    $ lxc shell c1 -- cephadm version
    ModuleNotFoundError: No module named 'ceph'

  Workaround:
    apt-get install -y cephadm python3-ceph-common

  Expected fix: add `python3-ceph-common (>= ${binary:Version})` to
  cephadm's Depends in debian/control. The squid (19.x) cephadm in noble
  shipped as a single-file script with no Python imports beyond the
  stdlib, so this regression is specific to the Tentacle refactor that
  moved logic into cephadmlib/ and ceph/cephadm/.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ceph/+bug/2150665/+subscriptions




More information about the Ubuntu-openstack-bugs mailing list