Gfilui

I get this error when try to restore a backup:

Traceback (most recent call last):
 File "/usr/bin/duplicity", line 1532, in <module>
 with_tempdir(main)
 File "/usr/bin/duplicity", line 1526, in with_tempdir
 fn()
 File "/usr/bin/duplicity", line 1377, in main
 globals.lockfile.acquire(timeout=0)
 File "/usr/lib/python2.7/dist-packages/lockfile/linklockfile.py", line 21, in acquire
 raise LockFailed("failed to create %s" % self.unique_name)
LockFailed: failed to create /home/zoroaster/.cache/deja-dup/d33a3d20343d288863d8447c1af54f02/Avestan.4889-8464751143147245462

It's just a test backup that I do with this setting:

Folders to save:

/etc
/lib
/root
/srv
/var
/usr/local
/home/zoroaster

And folder to exclude:

/var/run
/var/cache
/var/tmp

And from home I exclude Downloads, Videos and a few others.

The storage location is an external usbdrive.

For run backup I use command line with sudo since I am doing backup also of other folder not only home.

However, for test I use GUI, so maybe problem is that I am not restoring using "root"?

In this case, how to test via terminal if backup is successfully and can be restored.

I can also delete the backup and make new one as this is just a test for backup most important data and system in case of need.

As suggested I have install python-lockfile and then there was a button in Restore to install something in deja dup app. After the installation, this is the issue:

Traceback (most recent call last):
 File "/usr/bin/duplicity", line 1532, in <module>
 with_tempdir(main)
 File "/usr/bin/duplicity", line 1526, in with_tempdir
 fn()
 File "/usr/bin/duplicity", line 1377, in main
 globals.lockfile.acquire(timeout=0)
 File "/usr/lib/python2.7/dist-packages/lockfile/linklockfile.py", line 21, in acquire
 raise LockFailed("failed to create %s" % self.unique_name)
LockFailed: failed to create /home/zoroaster/.cache/deja-dup/d33a3d20343d288863d8447c1af54f02/Avestan.7691-8464751143147245462

After doing new backup using GUI, appear now similar error when trying to make new backup:

Traceback (most recent call last):
 File "/usr/bin/duplicity", line 1532, in <module>
 with_tempdir(main)
 File "/usr/bin/duplicity", line 1526, in with_tempdir
 fn()
 File "/usr/bin/duplicity", line 1377, in main
 globals.lockfile.acquire(timeout=0)
 File "/usr/lib/python2.7/dist-packages/lockfile/linklockfile.py", line 21, in acquire
 raise LockFailed("failed to create %s" % self.unique_name)
LockFailed: failed to create /home/zoroaster/.cache/deja-dup/d33a3d20343d288863d8447c1af54f02/Avestan.9581-8464751143147245462

If I do backup on local disc then work fine. the error only appear when trying to backup on usbdrive.

$ ls -dl /home/zoroaster/.cache/deja-dup/d33a3d20343d288863d8447c1af54f02
drwxr-xr-x 2 root root 4096 Jun 11 12:02 /home/zoroaster/.cache/deja-dup/d33a3d20343d288863d8447c1af54f02

After fixing issue, this new happen starting new backup:

Permission denied when trying to create ‘/duplicity-full.20180611T112448Z.vol1.difftar.gpg’

GUI applications should never be started with sudo as you did because they’ll save files with wrong permissions and ownership then. This is explained in full here:

Why should users never use normal sudo to start graphical applications?

Your issue seems to be the cache directory mentioned in the error message. As it’s just a cache directory, you can safely remove it with

sudo rm -rf /home/zoroaster/.cache/deja-dup/d33a3d20343d288863d8447c1af54f02

and test the backup again.