2.1b4: installation on trusty requires lxd from backports

[Andreas Hasenack]

If you just follow these steps to try to use juju 2.1beta4 on trusty, it will fail:

add-apt-repository ppa:juju/devel
apt update
apt install juju

 juju : Depends: juju-2.0 (>= 1:2.1~beta4-0ubuntu1~14.04.1~juju1) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

The reason is lxd:
root@trusty:~# apt install juju-2.0
(...)
The following packages have unmet dependencies:
 juju-2.0 : Depends: lxd but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

root@trusty:~# apt install lxd
(...)
The following packages have unmet dependencies:
 lxd : Depends: liblxc1 (>= 2.0.0~) but 1.0.8-0ubuntu0.4 is to be installed
E: Unable to correct problems, you have held broken packages.

root@trusty:~# apt-cache policy liblxc1
liblxc1:
  Installed: (none)
  Candidate: 1.0.8-0ubuntu0.4 <------------
  Version table:
     2.0.6-0ubuntu1~ubuntu14.04.1 0
        100 http://br.archive.ubuntu.com/ubuntu/ trusty-backports/main amd64 Packages
     1.0.8-0ubuntu0.4 0
        500 http://br.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages
     1.0.3-0ubuntu3 0
        500 http://br.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages

You have to manually tell apt to install lxd from backports: "apt install -t trusty-backports lxd"

Then you can "apt install juju" on trusty.

Note: I used a trusty container (lxd) for this test, maybe the trusty image used for that doesn't have backports enabled by default.

[Anastasia (anastasia-macmood)]

This is mostly documentation issue. I have added one to ensure that manual gets updated: https://github.com/juju/docs/issues/1595.

Thank you for reporting it and for finding the solution!

[David Britton (dpb)]

Adding landscape to put in a workaround for out build process.

[Curtis Hovey (sinzui)]

This was fixed on 2017-02-23 in the rebuild of the package, see bug 1654082