Hello Martin, hello world does not work as well, but core snap can be installed without any problem.
ubuntu@ubuntu:~$ snap list Name Version Rev Developer Notes core 16.04.1 394 canonical - ubuntu@ubuntu:~$ uname -a Linux ubuntu 3.13.0-102-generic #149-Ubuntu SMP Wed Nov 9 21:52:08 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux ubuntu@ubuntu:~$ dpkg -l | grep systemd ii libpam-systemd:amd64 204-5ubuntu20.20 amd64 system and service manager - PAM module ii libsystemd-daemon0:amd64 204-5ubuntu20.20 amd64 systemd utility library ii libsystemd-journal0:amd64 204-5ubuntu20.20 amd64 systemd journal utility library ii libsystemd-login0:amd64 204-5ubuntu20.20 amd64 systemd login utility library ii systemd 204-5ubuntu20.20 amd64 system and service manager ii systemd-services 204-5ubuntu20.20 amd64 systemd runtime services rc systemd-shim 6-2bzr1 amd64 shim for systemd ubuntu@ubuntu:~$ sudo snap install hello-world [sudo] password for ubuntu: error: cannot perform the following tasks: - Setup snap "hello-world" (27) security profiles (cannot setup apparmor for snap "hello-world": cannot load apparmor profile "snap.hello-world.env": cannot load apparmor profile: exit status 1 apparmor_parser output: AppArmor parser error for /var/lib/snapd/apparmor/profiles/snap.hello-world.env in /var/lib/snapd/apparmor/profiles/snap.hello-world.env at line 305: syntax error, unexpected TOK_CONDLISTID, expecting TOK_MODE ) - Setup snap "hello-world" (27) security profiles (cannot load apparmor profile "snap.hello-world.env": cannot load apparmor profile: exit status 1 apparmor_parser output: AppArmor parser error for /var/lib/snapd/apparmor/profiles/snap.hello-world.env in /var/lib/snapd/apparmor/profiles/snap.hello-world.env at line 305: syntax error, unexpected TOK_CONDLISTID, expecting TOK_MODE ) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1616422 Title: [trusty SRU/FFE] Add systemd binary package for snapd Status in init-system-helpers package in Ubuntu: Invalid Status in systemd package in Ubuntu: Invalid Status in init-system-helpers source package in Trusty: Fix Committed Status in systemd source package in Trusty: Fix Committed Bug description: Rationale: For backporting snapd to 14.04 LTS, we need to provide systemd's service manager (not just logind and auxiliary services like logind or timesyncd). upstart will continue to do the actual booting, and systemd will act as a "deputy init" which by default does not ship with/start any services by itself. We will only support this on server (at the first iteration at least), not on desktops. Regression potential: This is a new binary package in universe, so existing systems are unaffected (provided that we ensure that the other binary packages do not change and there are no code changes that affect processes other than the "deputy pid 1" service manager). So for plain upgrades the regression potential is very low. However, there is a medium potential for breakage when actually installing the new systemd package, as it might interfere with upstart jobs or other running processes, cause boot/shutdown hangs, etc. For init-system-helpers, the regression potential is near-zero: We never had (and never will) systemd as pid 1 in trusty, so deb-systemd- invoke was previously never called. It does get called now if you install Ubuntu packages that ship a systemd unit, so we need to make that a no-op to retain the current behaviour. Test plan: 1. Dist-upgrade a trusty installation to the proposed versions. Ensure this does not pull in "systemd", and that booting, shutdown, desktop startup, suspend on lid close, resume, logout, and user switching all still work. 2. Install the "systemd" binary package (this will replace/remove systemd-shim). Verify that you can talk to the service manager with "sudo systemctl status". Check that booting and shutdown continues to work without (significant) delays. 3. Ensure that "sudo journalctl" works and that "sudo systemctl status systemd-journald" is running and has a few lines of log at the end (unlike what you get when you run systemctl as user). 4. Install a package that ships a systemd .service file, such as "haveged". Ensure that the service file is ignored, "pgrep -af haveged" should only have *one* process and "systemctl status haveged" should not be running (it should not exist, or not be enabled and be inactive). [This part also needs the updated init-system-helpers]. The only services that are running are expected to be systemd- journald.service and systemd-journald.socket. 5. Ensure that the standard targets are active, as that is where third-party/snap services hook into: systemctl status sysinit.target multi-user.target default.target 6. Install snapd (not in trusty yet, e. g. from Thomas' PPA) and ensure you can install a snap, and its services start after installing the snap and after rebooting. 7. Run "sudo apt-get install --reinstall systemd" to ensure that upgrades to newer systemd trusty versions work. The running systemd should *not* be restarted as that would disrupt snapd and its services (verify that the pid in "initctl status systemd" is the same before and after the upgrade). 8. Run "sudo apt install -y colord && sudo apt purge -y colord". This should succeed. 9. Dist-upgrade to 16.04 to ensure that there are no file conflicts, dependency issues, etc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/init-system-helpers/+bug/1616422/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp