@xnox Scheduling with /sbin/shutdown normally does work ... however, what we're dealing with here is the anomalous situation of an instance which starts off as trusty and is upgraded to xenial. During the upgrade process, the /sbin/shutdown implementation is changed from the upstart one to the systemd one. At the end of the process, /sbin/shutdown is (unsurprisingly) a link to systemctl ... but it doesn't work because it's expecting to be able to talk to systemd which isn't fully operational until a reboot. As Landscape is expecting to be able to reboot via /sbin/shutdown the user relying on Landscape in such a scenario finds themselves in a bit of a bind (having to have some other means of dealing with the server, like SSH).
However, /sbin/reboot and /sbin/poweroff *do* work in this (admittedly rare) scenario, hence the patches committed for this issue leave the system using /sbin/shutdown by default but if/when it fails, they fall back to trying /sbin/reboot or /sbin/poweroff (as appropriate) instead. As to why -h is used instead of -P, in systemd's implementation of /sbin/shutdown they're exactly the same thing. In the upstart implementation it's more vague; quoting from the man-page: "Requests that the system be either halted or powered off after it has been brought down, with the choice as to which left up to the system". I'm not sure what that means in practice though! -- 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: Fix Committed 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
