How To Reboot a PC inside snap app (created with Flutter) on Ubuntu 22.04?

Hossein Vejdani

5/17/24, 5:04 AM

I have an Ubuntu 22.04 on my PC, and also i have a snapped Linux app that created with Flutter. I have also a button for rebooting the OS in my Flutter app.

I tried two different methods:

method 1:

await Process.run("reboot", []);

message:

flutter: Running in chroot, ignoring request.

method 2:

await Process.run('sudo', ['reboot']);

message:

flutter: >>> /etc/sudoers: syntax error near line 54 <<<
sudo: parse error in /etc/sudoers near line 54
sudo: no valid sudoers sources found, quitting
sudo: unable to initialize policy plugin

Also this is my 'snapcarft.yaml' file content:

name: panel-gyro-compass
version: 1.0.0
summary: panel gyro compass
description: panel gyro compass

confinement: strict
base: core18
grade: stable


slots:
  dbus-panel-gyro-compass: # adjust accordingly to your app name
    interface: dbus
    bus: session
    name: org.bar.panel_gyro_compass # adjust accordingly to your app name and


    
apps:
  panel-gyro-compass:
    command: panel_gyro_compass
    extensions: [flutter-master] # Where "master" defines which Flutter channel to use for the build
    plugs: [network, serial-port]
    slots: [dbus-panel-gyro-compass]

parts:
  panel-gyro-compass:
    source: .
    plugin: flutter
    flutter-target: lib/main.dart # The main entry-point file of the application

please show me how to run a command in Flutter for Rebooting the PC.

0 + 2

reboot

snap

matigo

5/17/24, 5:40 AM

Snaps are containerised to prevent them from having too much access to the computer. You would need to be running the Snap as a traditional application to do this, which sort of defeats the purpose of wrapping the program in a Snap

user535733

5/17/24, 12:19 PM

It requires access to systemd via dbus. See https://forum.snapcraft.io/t/system-reboot-from-within-a-strictly-confined-snap/10080, where reboot from within a snap is explained by the developers.

Elon Musk

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EN: How To Reboot a PC inside snap app (created with Flutter) on Ubuntu 22.04?

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