https://bugs.kde.org/show_bug.cgi?id=478643
Bug ID: 478643
Summary: Disk and Devices applet shows encrypted volumes even
if they are marked for being ignored
Classification: Plasma
Product: plasmashell
Version: 5.27.10
Platform: Manjaro
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Disks & Devices
Assignee: plasma-b...@kde.org
Reporter: sergio.calleg...@gmail.com
Target Milestone: 1.0
SUMMARY
Volumes marked for being ignored by udev/udisks2 (i.e., with the HintIgnore
attribute set) should not be shown/managed by the Disks and Devices applet.
However, in some cases this does not happen and the volumes are improperly
shown (even when dolphin does not show them).
Setup in which this occurs is related to the use of LUKS disk encryption and is
probably not extra frequent, but can be increasingly important given that the
usage of disk encryption is on the rise.
I have a laptop (in fact a 2-in-1) with a very small internal NVME used to
store the main OS, while all the rest (and particularly the home dir(s) ) go on
a large SD card. For safety, the SD card is encrypted. At boot the OS learns
about it via `crypttab` , asks for a password to decrypt it and mounts it. So
far so good.
The issue is that in plasma the Disks and Devices applet keeps showing it as a
removable device (reported as "Encrypted Drive" rather than by the volume
label), providing just the option to "safely remove" it, which obviously can
only fail since the device is in use.
This happens even if the volume is marked for being ignored via a udev rule. In
fact, it does not matter whether the upper (crypted) device is marked, the
lower (decrypted) device is or both. The fact that the udev rule works
correctly can be checked with the udisks2 dbus interface and also via
`solid-hardware5 list details` that reports for both the block devices that the
`StorageAccess.ignored` and `StorageVolume.ignored` properties are true.
Interestingly, these properties correctly prevent the block device from being
shown in a "Removable devices" section in dolphin, though.
STEPS TO REPRODUCE
1. Have an external drive (usb, sd, etc.) encrypted with LUKS
2. Set an appropriate `crypttab` to decrypt it at boot and an `fstab` to mount
the decrypted volume
3. Write in `\etc\udev\rules.d` some rules to assure that
`ENV{UDISKS_IGNORE}="1"` for the upper and lower devices
4. Login in plasma
OBSERVED RESULT
The Disks and Devices icon is shown in the system tray. Clicking on it shows an
"Encrypted Drive" as a removable device and offers the option to "Safely
remove" it.
EXPECTED RESULT
No "Encrypted Drive" is shown because udisks2 has the Ignore Hint set for it.
SOFTWARE/OS VERSIONS
Operating System: Manjaro Linux
KDE Plasma Version: 5.27.10
KDE Frameworks Version: 5.112.0
Qt Version: 5.15.11
Kernel Version: 6.6.7-1-MANJARO (64-bit)
Graphics Platform: Wayland
Processors: 8 × Intel® Core™ i7-4750HQ CPU @ 2.00GHz
Memory: 15.5 GiB of RAM
Graphics Processor: Mesa Intel® Iris® Pro Graphics P5200
Manufacturer: Notebook
Product Name: W740SU
System Version: Not Applicable
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