Filesystems Susceptible to Lingering Mounts Mega List

[RushingAlien]

#1359 for background.

Some filesystems Like Btrfs may not unmount on sudden/ungraceful device detach, which is common for USB storage. Systemd has a mount option for such filesystems x-systemd.device-bound which sets a BindsTo dependency against the backing device, instead of the default Requires. Binds is like Require but also, stopping the bounded unit will stop the binding unit. In this case it makes the deactivation of the backing device unmount the filesystem.

So it would be good to have a list of offending filesystems so udisks can set x-systemd.device-bound as a default mount option for these devices.

• Btrfs
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