Public bug reported:

When running backup with duplicity, it cannot handle sparse files
efficiently.

I have a virtual machine image on my home dir,

26G -rw-r--r-- 1 libvirt-qemu kvm 33G huhti 28 08:59 dev02.img

And duplicity is backing it up 33G, when it should only back up 26G.

Steps to reproduce

1. Use qemu-image to create a sparse file
2. Run duplicity
3. Observe duplicity back it up whole instead of very small size

** Affects: duplicity (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "ubuntu-bug duplicity"
   
https://bugs.launchpad.net/bugs/1576051/+attachment/4649779/+files/duplicity.bug

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https://bugs.launchpad.net/bugs/1576051

Title:
  Duplicity cannot handle sparse files efficiently

Status in duplicity package in Ubuntu:
  New

Bug description:
  When running backup with duplicity, it cannot handle sparse files
  efficiently.

  I have a virtual machine image on my home dir,

  26G -rw-r--r-- 1 libvirt-qemu kvm 33G huhti 28 08:59 dev02.img

  And duplicity is backing it up 33G, when it should only back up 26G.

  Steps to reproduce

  1. Use qemu-image to create a sparse file
  2. Run duplicity
  3. Observe duplicity back it up whole instead of very small size

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/duplicity/+bug/1576051/+subscriptions

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