Seems like there's two issues here which I'll address in separate PRs to the landscape-client:
First is the issue that the landscape-client fails to report the completion (or failure) of the release upgrade process. This turns out to be due to a delayed import in the version of twisted distributed with trusty. Because the import (of twisted.internet.unix) is delayed, by the time we *do* import it (implicitly by calling another twisted method), the twisted version on disk has been replaced with the xenial version and things (unsurprisingly) break. The trivial fix is to pre-emptively import the module prior to starting the release upgrade; I'll push a PR for this in a moment. The second issue is that landscape-client fails to reboot (or shutdown) the machine immediately following the release upgrade procedure. This is due to the fact landscape-client currently relies upon /sbin/shutdown to handle reboot or shutdown requests. This utility operates happily in its upstart variant (in trusty), and systemd variant (in xenial and beyond), but fails in the post-trusty-to-xenial upgrade environment when the system on disk is effectively xenial (so /sbin/shutdown is a link to systemctl), but the running environment is still partially trusty. It transpires that systemctl (without the double --force --force option) requires both systemd and dbus to be operational in order to successfully (and cleanly) shutdown or restart. The fix for this is a little more complex as the landscape-client relies upon the scheduling function of /sbin/shutdown to ensure it can request a shutdown and still report back to the server before the machine actually goes down. I'm still investigating the best method which will work reliably in all potential environments. -- 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/1670291 Title: Landscape: Upgrade 14.04.5 to 16.04.2 fails unable to reboot Status in landscape-client package in Ubuntu: Confirmed Status in systemd package in Ubuntu: Incomplete Status in landscape-client source package in Xenial: Confirmed Status in systemd source package in Xenial: Incomplete Bug description: Used Landscape (Paid Canonical Subscription) to upgrade one of my machines. Landscape only shows "In Progress" for more than 8 hours now and asked for a reboot of the machine in a second alert. In the reboot attempt I get the message: ========================= Failed to set wall message, ignoring: Method "SetWallMessage" with signature "sb" on interface "org.freedesktop.login1.Manager" doesn't exist Failed to call ScheduleShutdown in logind, proceeding with immediate shutdown: Method "ScheduleShutdown" with signature "st" on interface "org.freedesktop.login1.Manager" doesn't exist ========================= Steps to reproduce: * Fully updated 14.04.5 machine * Open Landscape * Choose the machine * Choose Packages * This computer can be upgraded to a newer release * Apply * Wait 2 hours * Alert comes in a seperate Landscape message Machine is ready for reboot * Choose Info... Power * Deliver to selected computers as soon as possible * Error message I found this thread on reddit about this issue maybe the solution can be built into the upgrade script https://www.reddit.com/r/linuxquestions/comments/4wy3go/trying_to_run_as_user_instance_but_the_system_has/ To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/landscape-client/+bug/1670291/+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
