I've set up an encrypted USB drive with an ext4 filesystem on it using Mandriva's Diskdrake, which uses luks.

When I plug that drive in, the device notifier in KDE tells me it is there, and identifies it as "279.5 GiB Encrypted", with a small lock icon.

When I click on the lock icon, I'm prompted for the passphrase for the volume. When I enter that correctly, the device notifier correctly does the cryptsetup, but provides me with no means to mount the drive. Unlike with an unencrypted volume, I have no choices presented to me for actions to take.

I must therefore mount the volume manually using the mount command.

I also have just noticed that Dolphin seems to not like encrypted volumes. I have several of these, and I'm transitioning my entire environment to encrypted. But Dolphin's left-hand pane, which identifies volumes, won't let me click on an encrypted volume to view its contents, though I can access the drive by clicking on its mountpoint.

I presume from this that KDE4 is not properly following devices when they aren't sd* or hd*, so the dm* devices get ignored.

Is this just some obscure configuration thing? Has anyone found a solution to the problem?

My system is Mandriva 2010.1 with KDE 4.4.3.

So.

Either no one else has seen this or by placing it in the Mandriva forum I placed it where it doesn't receive much attention. Maybe I should link to it from the software forum.