System Monitor displays a list of mounted "Devices" under the "File System" tab. I would like to change the identifier that is associated with a "Device" listed in System Monitor. How can this be done?
Here's a little more background: My system has two LUKS-encrypted volumes: one on vda2, and the other on vda3. System Monitor displays /dev/dm-0 as the identifier for the LUKS-encrypted volume on vda2, but displays /dev/mapper/vda3_crypt as the identifier for the LUKS-encrypted volume on vda3.
I know this seems ridiculously picky, but I'd prefer that System Monitor use consistent nomenclature for the two LUKS-encrypted volumes. That is, either use /dev/mapper/vda2_crypt and /dev/mapper/vda3_crypt (for volumes on vda2 and vda3, respectively) or use /dev/dm-0 and /dev/dm-1 (for volumes on vda2 and vda3, respectively). Is there a way to force this?
I'll just add that changes to neither crypttab nor fstab have any effect on what System Monitor displays. So on what does System Monitor rely for determining how to name these devices? A config file? If so, located where?
For anyone who is curious, here's how these volumes were created: Using the “something else” option presented during installation of 15.10, I created a LUKS-encrypted volume on vda2, and I then installed boot (/boot) into non-encrypted vda1, and root (/) into the LUKS-encrypted vda2 formatted with Ext4. I then booted into Ubuntu and created an auto-mounting LUKS-encrypted vda3 formatted with Ext4, to which I moved my home directory.
I used the above approach to overcome a bug that prevents the direct installation of /home into a separate LUKS encrypted volume during installation of Ubuntu 15.10 and Ubuntu 16.04. For more information about that bug, see
https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1523194
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