Problema ao instalar o Unity8-LXC na Mint

Question

(Eu originalmente postei isso no askubuntu, mas foi dito que deveria estar aqui.)

Eu quero instalar o unity8-lxc no Linux Mint para que eu possa verificar o Unity8 sem instalá-lo. O Mint 17.3 (Rafaela) usa o Ubuntu 14.04 LTS, o último kernel suportado pelo 3.19 (acho que estamos na versão do kernel 87.32 agora?).

Como o Mint é basicamente o Ubuntu, eu fiz:

apt-add-repository ppa:unity8-desktop-session-team/unity8-preview-lxc
apt update
apt install unity8-lxc

que dá:

[...]
The following packages have unmet dependencies:
 unity8-lxc : Depends: python3-lxc but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

naturalmente, eu fiz

apt install unity8-lxc python3 -f

que produz:

[...]
The following packages have unmet dependencies:
 python3-lxc : Depends: liblxc1 (= 1.1.2-0ubuntu3~ubuntu14.04.1~ppa1) but it is not going to be installed
           Recommends: lxc-templates (>= 0.8.0~rc1-4ubuntu43) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

e

apt install unity8-lxc python3-lxc liblxc1 lxc-templates

dá

[...]
The following packages have unmet dependencies:
 liblxc1 : Depends: libcgmanager0 (>= 0.28) but 0.24-0ubuntu7.5 is to be installed
E: Unable to correct problems, you have held broken packages.

apesar do fato de que, na medida em que minha limpeza da Internet pode dizer, .24 é a última versão disponível de libcgmanager0 . Eu criei a partir do código-fonte, mas ainda assim recebo esse problema.

Por fim,

apt install unity8-lxc python3-lxc liblxc1 lxc-templates libcgmanager0

retorna

Reading package lists... Done
Building dependency tree
Reading state information... Done
libcgmanager0 is already the newest version.
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:
 liblxc1 : Depends: libcgmanager0 (>= 0.28) but 0.24-0ubuntu7.5 is to be installed
E: Unable to correct problems, you have held broken packages.

Algum conselho? Ou devo desistir ...

Edit: Eu instalei unity8 de community.linuxmint.org e eu tenho uma janela de shell, mas está bem quebrada ...