Refreshing core in edge waiting on "...security profiles (phase 2)"

[Michał Sawicz]

On stable, I can `snap refresh core` and it will exit after having scheduled a reboot, so the user can reboot themselves to speed the process up.

On edge, refreshing core schedules a reboot, but then the command stays on "Setup snap "core" (...) security profiles (phase 2)" with the throbber going back and forth, it's unclear what can the user do. Would Ctrl+C interrupt the upgrade? Do I have to wait for the reboot?

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saviq@localhost:~$ snap refresh core
Setup snap "core" (5490) security profiles
Broadcast message from <email address hidden> (Thu 2018-09-13 18:48:13 UTC):

reboot scheduled to update the system - temporarily cancel with 'sudo shutdown -c'
The system is going down for reboot at Thu 2018-09-13 18:58:13 UTC!

2018-09-13T18:48:13Z INFO Waiting for restart...
2018-09-13T18:48:26Z INFO Waiting for restart...
2018-09-13T18:48:28Z INFO Waiting for restart...
2018-09-13T18:48:29Z INFO Waiting for restart...
Setup snap "core" (5490) security profiles (phase 2)
Broadcast message from <email address hidden> (Thu 2018-09-13 18:48:30 UTC):

reboot scheduled to update the system - temporarily cancel with 'sudo shutdown -c'
The system is going down for reboot at Thu 2018-09-13 18:58:30 UTC!

2018-09-13T18:48:30Z INFO Waiting for restart...
Setup snap "core" (5490) security profiles (phase 2)
Broadcast message from <email address hidden> (Thu 2018-09-13 18:49:30 UTC):

reboot scheduled to update the system - temporarily cancel with 'sudo shutdown -c'
The system is going down for reboot at Thu 2018-09-13 18:58:30 UTC!

Setup snap "core" (5490) security profiles (phase 2)

[Michael Vogt (mvo)]

We reworked the way to present this and `snap refresh core` does no longer hang in this strange state.