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[macho <1245805@xxxxxxxxxxxxxxxxxx>]

I'm still getting this crash on Ubuntu 15.10 with duplicity 0.7.02.

My initial full backup seemed to be stalled (destination stopped
growing), so I did ^C and restarted:

# duplicity --full-if-older-than 2W --no-encryption --exclude-other-filesystems $home_source $home_target
Local and Remote metadata are synchronized, no sync needed.
Last full backup left a partial set, restarting.
Last full backup date: Sat Jan  2 02:14:14 2016
RESTART: Volumes 82 to 525 failed to upload before termination.
         Restarting backup at volume 82.
Traceback (most recent call last):
  File "/usr/bin/duplicity", line 1519, in <module>
    with_tempdir(main)
  File "/usr/bin/duplicity", line 1513, in with_tempdir
    fn()
  File "/usr/bin/duplicity", line 1370, in main
    do_backup(action)
  File "/usr/bin/duplicity", line 1483, in do_backup
    full_backup(col_stats)
  File "/usr/bin/duplicity", line 560, in full_backup
    globals.backend)
  File "/usr/bin/duplicity", line 375, in write_multivol
    validate_encryption_settings(globals.restart.last_backup, mf)
  File "/usr/bin/duplicity", line 354, in validate_encryption_settings
    if vol1_filename != backup_set.volume_name_dict[1]:
KeyError: 1

I'll try a fresh full backup, but I fear it will stall and/or crash
again.

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https://bugs.launchpad.net/bugs/1245805

Title:
  Crash with stacktrace, error code 30 in validate_encryption_settings

Status in Duplicity:
  New
Status in duplicity package in Ubuntu:
  Confirmed

Bug description:
  While running duplicity through duply, I get:

  [...]
  Found primary backup chain with matching signature chain:
  -------------------------
  Chain start time: Fri Oct 25 17:41:51 2013
  Chain end time: Fri Oct 25 17:41:51 2013
  Number of contained backup sets: 1
  Total number of contained volumes: 13
   Type of backup set:                            Time:      Num volumes:
                  Full         Fri Oct 25 17:41:51 2013                13
  -------------------------
  No orphaned or incomplete backup sets found.
  Reuse configured PASSPHRASE as SIGN_PASSPHRASE
  RESTART: Volumes 13 to 473 failed to upload before termination.
           Restarting backup at volume 13.
  Removing still remembered temporary file /tmp/duplicity-H1PRj7-tempdir/mkstemp-Bvibdh-1
  Traceback (most recent call last):
    File "/usr/bin/duplicity", line 1411, in <module>
      with_tempdir(main)
    File "/usr/bin/duplicity", line 1404, in with_tempdir
      fn()
    File "/usr/bin/duplicity", line 1374, in main
      full_backup(col_stats)
    File "/usr/bin/duplicity", line 509, in full_backup
      globals.backend)
    File "/usr/bin/duplicity", line 346, in write_multivol
      validate_encryption_settings(globals.restart.last_backup, mf)
    File "/usr/bin/duplicity", line 325, in validate_encryption_settings
      if vol1_filename != backup_set.volume_name_dict[1]:
  KeyError: 1

  09:03:40.631 Task 'BKP' failed with exit code '30'.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: duplicity 0.6.21-0ubuntu4
  ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
  Uname: Linux 3.11.0-12-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.12.5-0ubuntu2.1
  Architecture: amd64
  Date: Tue Oct 29 09:04:56 2013
  InstallationDate: Installed on 2013-10-21 (7 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MarkForUpload: True
  SourcePackage: duplicity
  UpgradeStatus: No upgrade log present (probably fresh install)

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