[OSGeoLive] #2493: Marble doesn't launch

[OSGeoLive]

#2493: Marble doesn't launch
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 Reporter:  sanak      |       Owner:  osgeolive@…
     Type:  defect     |      Status:  new
 Priority:  normal     |   Milestone:  OSGeoLive17.0
Component:  OSGeoLive  |  Resolution:
 Keywords:             |
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Comment (by sanak):

 Note that the error only occurs when trying Lubuntu live mode (boot from
 ISO), and it doesn't happen after installing Lubuntu to VirtualBox.

 `marble-qt --debug-info` didn't show an useful information,\\
 but `sudo dmesg -T | grep marble` showed the following information.
 {{{
 :
 [Mon Nov  4 04:21:33 2024] audit: type=1400
 audit(1730694093.743:10):apparmor="DENIED" operation="userns_create"
 class="namespace" info="Userns create restricted - failed to find
 unprivileged_userns profile" error=-13 profile="unconfined" pid=3642 comm
 ="marble-qt" requested="userns_create" denied="userns_create"
 target="unprivileged_userns"
 [Mon Nov  4 04:21:33 2024] traps: marble-qt[3642] trap int3
 ip:7c190b1bcdb3 sp:7ffd34c6f6b0 error:0 in
 libQt5WebEngineCore.so.5.15.16[7c1908f99000+6931000]
 }}}

 From googling {{{Ubuntu libQt5WebEngineCore AppArmor}}}, I found the
 following article.\\
 [Error when running scide built from source on Ubuntu 24.04 - Questions -
 scsynth]\\
 https://scsynth.org/t/error-when-running-scide-built-from-source-on-
 ubuntu-24-04/8808

 And I confirmed that executing {{{QTWEBENGINE_DISABLE_SANDBOX=1 marble-
 qt}}} can launch the app,\\
 but I am not sure whether this is a correct fix, because I am not familiar
 with new AppArmor from Ubuntu 24.04.
-- 
Ticket URL: <https://trac.osgeo.org/osgeolive/ticket/2493#comment:1>
OSGeoLive <https://live.osgeo.org/>
self-contained bootable DVD, USB thumb drive or Virtual Machine based on Lubuntu, that allows you to try a wide variety of open source geospatial software without installing anything.