[Bug 608400] Re: losetup: no warning on multiple associations with the same file

[Phillip Susi]

** Changed in: util-linux (Ubuntu)
       Status: New => Triaged

** Changed in: util-linux (Ubuntu)
   Importance: Undecided => Wishlist

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https://bugs.launchpad.net/bugs/608400

Title:
  losetup: no warning on multiple associations with the same file

Status in “util-linux” package in Ubuntu:
  Triaged

Bug description:
  Binary package hint: util-linux

  losetup sees no problem creating multiple association for a single
  source device, i.e. /tmp/file1 -> /dev/loop0 and /tmp/file1 ->
  /dev/loop1. I understand, this is the desired behaviour as you might
  want to map one part of a file to loop0 and another to loop1. This
  works badly in the ubuntu case, however: Adding an association with
  losetup creates a udev-event which is propagated and causes nautilus
  to offer you to mount the newly detected device. Now, if you
  accidently associate a source file to two loop devices (i.e. by typing
  "losetup -f sourcefile" twice) and accidently mount both of them (i.e.
  out of curiosity what the second device is) you may very well loose
  your data.

  1) Ubuntu Release:
  Description:	Ubuntu 10.04 LTS
  Release:	10.04

  2) Package Version:
  mount 2.17.2-0ubuntu1

  3) Expected Behaviour:
  When creating an association for a source file which is already in use, losetup should warn the user. I.e. ask the user to repeat the command with a "--force" flag.

  4) Current Behaviour:
  No warning whatsoever is produced while creating multiple associations for a single source file.

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