[SOLVED] PCMAN no longer opens encrypted drive

[ticketman]

After a recent upgrade to stretch, when I use pcman to open an encrypted data drive, it complains "Not authorized to perform operation".

Before the upgrade, the same operation would result in asking me the passphrase and then the root password. The drive would then be readable.
I want to recover this behaviour.

Right now, to open the disc, I have to enter on the command line:

Code: Select all

sudo cryptsetup luksOpen /dev/sdc1 Other0 
sudo mkdir /media/my_name/Other0  
sudo mount /dev/mapper/Other0  /media/my_name/Other0 

Some config has changed, but I don't know what it is or how to fix it.

I am using lxde and pcman

[arochester]

I use LXQt, not LXDE...

I have LXQt-PolicyKit Authentication in Startup

The lxqt-policykit D-Bus session bus service that is used to
bring up authentication dialogs used for obtaining privileges.

This package contains the LXQt policy kit authentication agent.

Do you have lxpolkit in Startup?

LXPolkit is a GUI application for the Lightweight X11 Desktop Environment
(LXDE).

It's a simple PolicyKit authentication agent.

Otherwise have you tried: sudo pcmanfm

[ticketman]

Indeed I don't have lxpolkit installed.
Do I need to do anything after installing it?

[debiman]

yes, make sure it's autostarted.

[ticketman]

Yes, that fixed it, thanks debiman!
Install and make sure it autostarts. No other configuration necessary.
That was surprisingly easy!

I guess the kit installs some default policies that includes access to encrypted discs.

It does seem odd to me that each desktop environment has to have its own policy kit.
(Not that I know much about this subject ...)