How to create a system backup?

ARM Technical Assistance
21 
[voboda@manjaro ~]$ timeshift-launcher

(timeshift-gtk:13524): Gtk-WARNING **: 20:39:06.425: cannot open display: 
[voboda@manjaro ~]$

 [voboda@manjaro ~]$ pacman -Qs polkit
local/polkit 121-1
    Application development toolkit for controlling system-wide privileges
local/polkit-kde-agent 5.25.4-1 (plasma)
    Daemon providing a polkit authentication UI for KDE
local/polkit-qt5 0.114.0-1
    A library that allows developers to access PolicyKit API with a nice Qt-style API
[voboda@manjaro ~]$
22

This github issue mentions that the package might be missing a dependency for wayland support.

Try installing xorg-xhost with:
sudo pacman -S xorg-xhost

EDIT: Sorry, it’s already a dependency.

23

The x86 timeshift package depends on xorg-xhost, why doesn’t the ARM package?

24

It is.

25

What’s the output of:

pkexec timeshift-gtk

You seem to have the proper dependencies installed.

26 
[voboda@manjaro ~]$ pkexec timeshift-gtk

(timeshift-gtk:13636): Gtk-WARNING **: 21:01:51.756: cannot open display: 
[voboda@manjaro ~]$
27

Is there a difference this way? Make sure to run all three commands regardless of what happens:

xhost +SI:localuser:root
pkexec timeshift-gtk
xhost -SI:localuser:root
28 
[voboda@manjaro ~]$ pkexec timeshift-gtk

(timeshift-gtk:13835): Gtk-WARNING **: 21:14:24.768: cannot open display: 
[voboda@manjaro ~]$ xhost +SI:localuser:root
localuser:root being added to access control list
[voboda@manjaro ~]$ pkexec timeshift-gtk

(timeshift-gtk:13850): Gtk-WARNING **: 21:14:48.713: cannot open display: 
[voboda@manjaro ~]$ xhost -SI:localuser:root
localuser:root being removed from access control list
[voboda@manjaro ~]$ pkexec timeshift-gtk

(timeshift-gtk:13864): Gtk-WARNING **: 21:15:13.843: cannot open display: 
[voboda@manjaro ~]$
29

Try to run

pkexec env XDG_RUNTIME=$XDG_RUNTIME timeshift-gtk

OR

pkexec env DISPLAY=$DISPLAY XAUTHORITY=$XAUTHORITY timeshift-gtk

OR

For KDE

kdesu timeshift-gtk
30

not Work

pkexec env XDG_RUNTIME=$XDG_RUNTIME timeshift-gtk

Work Gui + Terminal

pkexec env DISPLAY=$DISPLAY XAUTHORITY=$XAUTHORITY timeshift-gtk

Work Gui + Terminal*

kdesu timeshift-gtk
31

Output of echo $DISPLAY?

32

You can create the Desktop application:

  1. Copy the Desktop application:
cp /usr/share/applications/timeshift-gtk.desktop ~/.local/share/applications/
  1. Edit $HOME/.local/share/applications/timeshift-gtk.desktop to change Exec=
    to
Exec=/usr/bin/bash -c "kdesu timeshift-gtk"
  1. Try to click timeshift app without terminal.
1 Like
33

echo $DISPLAY
:0.0

34

I used the kdesu timeshift-gtk command in the original shortcut and it works like a charm.

I will also try your additional solution.

PS:
do both commands have the same user?

Work Gui + Terminal run with privileges as user voboda ?

pkexec env DISPLAY=$DISPLAY XAUTHORITY=$XAUTHORITY timeshift-gtk

Work Gui + Terminal* run with privileges as user voboda or root ?

kdesu timeshift-gtk
35

Well in such case you should also be able to use

env DISPLAY=$DISPLAY timeshift-launcher

OR

env DISPLAY=:0.0 timeshift-launcher
36

Both run with root privileges. kdesu is official for KDE.

37

both commands don’t work

38

But Timeshift requires running with root privileges to create system backup.

39

That’s exactly what I thought :slight_smile:

40

@Zesko timeshift-launcher goes through polkit, which then runs pkexec timeshift-gtk. Technically the same as the other.

1 Like