cmd_run.go:179: WARNING: cannot create user data directory: cannot create "/home/$USER/snap/$SNAP/$VERSION": mkdir /home/$USER/snap/$SNAP: permission-denied

[Chris J Arges]

[ Test Case ]

1) Setup clean Xenial VM without logging into the snap store
2) Update snapd to 2.15.2
3) $ git clone https://github.com/arges/go-client-daemon.git
4) $ snapcraft
5) $ sudo snap install --force-dangerous client-daemon_1_amd64.snap
6) $ client-daemon.client
2016/09/19 17:04:24.925319 cmd_run.go:179: WARNING: cannot create user data directory: cannot create "/home/ubuntu/snap/client-daemon/x1": mkdir /home/ubuntu/snap/client-daemon: permission denied
failed to create user data directory. errmsg: Permission denied

Additional info:

ls -l ~/snap shows it is root:root
ls -l /root/snap shows it is also created and root:root

The test program snaps both a client and daemon, the daemon runs as a systemd service, and the client can connect to the service via a socket that resides in the SNAP_DATA directory. The application makes no use of the SNAP_USER_DATA directory. The problem only occurs when the userspace/client program is invoked.

[Danilo Cominotti Marques (dcominottim)]

I get the following when trying to launch the latest Libre Office snap on Ubuntu 16.04.3:

$ snap run libreoffice
cannot create user data directory: /home/danilocm/snap/libreoffice/21: Permission denied

$ sudo snap run libreoffice
[sudo] password for danilocm:
mkdir: cannot create directory '/run/user/0': Permission denied
No protocol specified
No protocol specified
mkdir: cannot create directory '/run/user/0': Permission denied
No protocol specified
No protocol specified

[Zygmunt Krynicki (zyga)]

Hello

Can you please provide the apparmor denial? It should be possible to find it by looking for the message "DENIED" and the specific path, e.g. "/run/user/0" in syslog/journal. I will look from the source code but having the denial would help.

[Launchpad Janitor (janitor)]

[Expired for Snappy because there has been no activity for 60 days.]