I´ve got a problem with firejail. In principle this sandbox works quite well. I can start a browser (firefox/midori) and other applications as well (like rhythmbox). What I want to do now is use the overlay-functionality: firejail --overlay firefox. Yet that doesn´t work.
Firefox itself produces the following message: " Your Firefox profile cannot be loaded. It may be missing or inaccessible". Yet that can´t be. Without firejail there´s no problem and even "firejail firefox" works well. The following message is taken from the terminal:
rosika@rosika-Lenovo-H520e ~> firejail --overlay firefox Reading profile /etc/firejail/firefox.profile Reading profile /etc/firejail/disable-mgmt.inc Reading profile /etc/firejail/disable-secret.inc Reading profile /etc/firejail/disable-common.inc Reading profile /etc/firejail/disable-devel.inc Reading profile /etc/firejail/whitelist-common.inc Warning: --overlay and --noroot are mutually exclusive, noroot disabled Parent pid 2362, child pid 2363 OverlayFS configured in /home/rosika/.firejail/2362 directory Warning: cannot find home directory *** *** Warning: cannot whitelist Downloads directory *** Any file saved will be lost when the sandbox is closed. *** Please create a proper Downloads directory for your application. *** Blacklist violations are logged to syslog Warning: failed to unmount /sys Child process initialized Failed to create secure directory (/run/user/1000/pulse): Datei oder Verzeichnis nicht gefunden Failed to create secure directory (/run/user/1000/pulse): Datei oder Verzeichnis nicht gefunden Failed to create secure directory (/run/user/1000/pulse): Datei oder Verzeichnis nicht gefunden parent is shutting down, bye..
As far as I know --overlay has been working as of kernel version 3.18. As I have 4.4.0-45-generic x86_64 there shouldn´t be any problems. Can anyone help me? Thanks a lot in advance. Rosika
P.S.: System: Linux/Lubuntu 16.04 LTS (64 bit)