call for testing: snapcraft

Carla Sella carla.sella at
Sat Mar 25 16:51:46 UTC 2017

On 24/03/2017 23:42, Leo Arias wrote:
> Hello!
> We are working on the final details of the snapcraft 2.28 release, and
> it is now in the proposed pocket of both xenial and yakkety.
> So, if you want to help us, we will appreciate a lot if you can give it a try.
> And because we recently had a testing day about lxd [1], lets mix
> everything up. To get a clean xenial or yakkety machine:
> $ sudo snap install lxd
> $ sudo lxd init
> # Just accepting the defaults is usually alright.
> $ sudo lxc launch ubuntu:xenial
> or change xenial in that last command for yakkety. This will print two
> words that are the name of the container. They are random and usually
> funny, mine for example is known-rat. So to get a shell in the
> container, I would run:
> $ sudo lxc exec known-rat bash
> root at known-rat:~#
> And now every command you execute will be done in the container. Feel
> free to experiment and try to break things that your host is safe.
> Enter the exit command to go back to your host, and delete the machine
> with
> $ sudo lxc delete --force known-rat
> But do not delete it yet! The idea is to enable proposed in the
> container. If you exited, run the exec bash command again. And now,
> install snapcraft in the container:
> root at known-rat:~# apt update && apt install snapcraft
> root at known-rat:~# snapcraft -v
> 2.27.1
> This is the latest released snapcraft. Now add one line to the
> sources. You can install your preferred editor in the container with
> apt, or use nano to open /etc/apt/sources.list:
> root at known-rat:~# nano /etc/apt/sources.list
> Add this line:
> deb xenial-proposed restricted main
> multiverse universe
> Save the file and run:
> root at known-rat:~# apt update && apt install snapcraft
> root at known-rat:~# snapcraft -v
> 2.28
> Just by doing this you have checked that the update process worked.
> Thanks for your help :D
> If you are new to snapcraft and don't know where to go from here, this
> is a nice tutorial to follow:
> And if you want to test more, here's a testing guide for this release:
> We need to run extensive tests in xenial and yakkety, and it wouldn't
> hurt to do zesty too. For that one just use ubuntu:zesty on the lxc
> launch command.
> If you get lost, have questions or want to report your results, just
> reply here on the list. And if you find something weird or a clear
> bug, please report it!
> Have a nice weekend.
> pura vida
> [1]

  I wanted to test on Zesty, but sudo lxc launch ubuntu:zesty gives me 
this output:

Creating accurate-satyr
error: Couldn't find the requested image

I have already launched Yakkety and Xenail machines without problems.
How come ?

Carla Sella
email: carla.sella at

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