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Balena Etcher is not opening in Ubuntu 24.04. How to run it? I am using the appimage. Other appimages are not working either.

1 Answers1

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Due to recent changes in apparmor, none of the electron apps (except VS Code) work out of the box in Ubuntu 24.04.

Temporary solution: The workaround is to run the following command.

sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=0

It has to be run again after rebooting.

To make it permanent, run the command

echo 'kernel.apparmor_restrict_unprivileged_userns = 0' | 
  sudo tee /etc/sysctl.d/20-apparmor-donotrestrict.conf

Note: Disabling the apparmor restrictions in 24.04 does not make it more vulnerable than 22.04. Please read this for more details, and use it at your own risk.