mounts should hint ignore

[Harald Sitter]

$ qdbus --system org.freedesktop.UDisks2 /org/freedesktop/UDisks2/block_devices/loop9 org.freedesktop.UDisks2.Block.HintIgnore
false

Currently, the loopback mounts of the snaps are not properly marked as ignore for udisks2 which results in them being listed in various UIs listing volumes from udisks.

One would expect them to have the HintIgnore property set to true [1] which is set via the UDISKS_IGNORE property in udev [2], supposedly snapd should come with it is own udev rule to set that property.

[1] http://storaged.org/doc/udisks2-api/latest/gdbus-org.freedesktop.UDisks2.Block.html#gdbus-property-org-freedesktop-UDisks2-Block.HintIgnore
[2] http://storaged.org/doc/udisks2-api/latest/udisks.8.html

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Zygmunt Krynicki (zyga)]

Dear reporter.

The mount and loopback device is created by libmount, through systemd. Do you know if there's a way for snapd to indicate that the loop device should be created with that attribute?

[Maciej Borzecki (maciek-borzecki)]

AFAIU this bug is already fixed. Snapd adds x-gdu.hide to mount options for snaps, and they are no longer visible in gnome disks utility.

Not sure why, but with udisks 2.9.2 I still see HintIgnore as false in my system. However, the `udisksctl status` only shows the actual disks so maybe it's handled elsewhere.

Please reopen if this is still a problem.