Tails Installer 'Install' or 'Upgrade' button greyed out: Permission denied: '/lib/live/mount/medium'

Another bug users report:

When on Tails 3.6.1 intermediary Tails:

- Open Tails Installer

- Buttons get greyed out or cannot be selected (USB devices dropdown menu, ‘Install’ button.
- No option can be selected

The user has an NVIDIA card (I am starting to develop a prejudice here):

01:00.0 VGA compatible controller: NVIDIA Corporation GM204 [GeForce GTX 970] (rev a1)

On the log I see:

Mar 23 05:08:23 amnesia tails-installer.desktop[19762]: Traceback (most recent call last):
Mar 23 05:08:23 amnesia tails-installer.desktop[19762]:   File "/usr/lib/python2.7/dist-packages/tails_installer/gui.py", line 424, in on_radio_button_source_iso_toggled
Mar 23 05:08:23 amnesia tails-installer.desktop[19762]:     path=config['running_liveos_mountpoint'])
Mar 23 05:08:23 amnesia tails-installer.desktop[19762]:   File "/usr/lib/python2.7/dist-packages/tails_installer/source.py", line 67, in __init__
Mar 23 05:08:23 amnesia tails-installer.desktop[19762]:     self.size = _dir_size(self.path)
Mar 23 05:08:23 amnesia tails-installer.desktop[19762]:   File "/usr/lib/python2.7/dist-packages/tails_installer/utils.py", line 57, in _dir_size
Mar 23 05:08:23 amnesia tails-installer.desktop[19762]:     for item in os.listdir(source):
Mar 23 05:08:23 amnesia tails-installer.desktop[19762]: OSError: [Errno 13] Permission denied: '/lib/live/mount/medium'
Mar 23 05:08:25 amnesia gvfsd[6417]: mkdir failed on directory /var/cache/samba: Permission denied
Mar 23 05:08:25 amnesia gvfsd[6417]: mkdir failed on directory /var/cache/samba: Permission denied
Mar 23 05:08:25 amnesia gvfsd[6417]: dbus_mount_reply: Error from org.gtk.vfs.Mountable.mount(): Failed to retrieve share list from server: Connection refused
Mar 23 05:08:25 amnesia gvfsd-network[19788]: Couldn't create directory monitor on smb://x-gnome-default-workgroup/. Error: The specified location is not mounted
Mar 23 05:08:28 amnesia tails-installer.desktop[19762]: Traceback (most recent call last):
Mar 23 05:08:28 amnesia tails-installer.desktop[19762]:   File "/usr/lib/python2.7/dist-packages/tails_installer/gui.py", line 424, in on_radio_button_source_iso_toggled
Mar 23 05:08:28 amnesia tails-installer.desktop[19762]:     path=config['running_liveos_mountpoint'])
Mar 23 05:08:28 amnesia tails-installer.desktop[19762]:   File "/usr/lib/python2.7/dist-packages/tails_installer/source.py", line 67, in __init__
Mar 23 05:08:28 amnesia tails-installer.desktop[19762]:     self.size = _dir_size(self.path)
Mar 23 05:08:28 amnesia tails-installer.desktop[19762]:   File "/usr/lib/python2.7/dist-packages/tails_installer/utils.py", line 57, in _dir_size
Mar 23 05:08:28 amnesia tails-installer.desktop[19762]:     for item in os.listdir(source):
Mar 23 05:08:28 amnesia tails-installer.desktop[19762]: OSError: [Errno 13] Permission denied: '/lib/live/mount/medium'

(What’s up with that samba?)

Bug report: b5f382f3654ea6560684ad0cd1ad8e06

Related issues

• Related to #13206 (closed)

Original created by @emmapeel on 15453 (Redmine)