[Bug 594674] Re: Trash is not shown on --bind mounted filesystems

[Luke]

A file in one partition, wherever mounted, cannot be "moved" to any
location in another partition, as to place it on a different physical
device or a partition of one means copying the file to that location,
then deleting it from the original, not just attacking a new path to an
existing physical location.  If "trash" is a directory in any location,
files can only be moved to and from it on the same device or partition
as a direct result of this limitation.

A fix for this would require code in a trash manager to copy to trash
anything from a different device, deleting it on that device, then copy
back to that device and delete from the trash to restore it.  This is
how "one trash can, many devices" would have to work. Needless to say,
trashing any large file would require waiting for copying to complete,
as would restoring it. Much of that and many users, especially on slow
machines, may prefer separate trash cans for each device.

Consider this result of using such code as proof of what I have just
said: : Two empty devices, a file on one, trash on the other. If you
could "move" the file to the trash on the other device, then empty
trash, a file recovery utility would find TWO copies of the file, one on
each device.  Since partitions are effectively physical devices as well,
that also applies to bind mounts from other partitions.

I don't use the trash at all,  instead creating a "secure trash"
directory on each magnetic disk that is empted using nautilus-wipe,
which does not work from the trash can. Flash drives are worse: they
require normal deletion (can use trash) but have to be filled usinng dd
to overwrite old files-still won't get everything if a block picks that
moment to die and go read-only!

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https://bugs.launchpad.net/bugs/594674

Title:
  Trash is not shown on --bind mounted filesystems

Status in The "G" Library - GLib:
  Confirmed
Status in Nautilus:
  Invalid
Status in “glib2.0” package in Ubuntu:
  Triaged
Status in “nautilus” package in Ubuntu:
  Triaged

Bug description:
  Binary package hint: nautilus

  I have a secondary partition, mounted at /media/data, from which I
  --bind mount a directory to be my ~/Videos using fstab.

  When I use Nautilus to navigate into ~/Videos and move a file into
  trash (either using Delete or by dragging or whatever), the file
  vanishes, but does not show up when I open Trash from the side panel.
  If I press Ctrl+H to see hidden files I find a ~/Videos/.Trash-1000
  directory, under which the file has been moved.

  Navigating to /media/data/path/Videos and removing the file from there
  moves it under /media/data/.Trash-1000, from where it correctly shows
  up in the trash can.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: nautilus 1:2.30.1-0ubuntu1
  ProcVersionSignature: Ubuntu 2.6.32-22.36-generic 2.6.32.11+drm33.2
  Uname: Linux 2.6.32-22-generic x86_64
  Architecture: amd64
  Date: Tue Jun 15 19:03:29 2010
  InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Release Candidate amd64 (20100419.1)
  ProcEnviron:
   LANG=en_US.utf8
   SHELL=/bin/bash
  SourcePackage: nautilus

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