[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Ads20000]

https://bugs.launchpad.net/ubuntu/+source/deja-dup/+bug/1734499 is
apparently a duplicate of this and I still get that on 18.04 (with the
backup that, iirc, I made on 17.10).

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[cement_head]

(yep, have the SAMBA directory)

Wait a second!!!

Okay, got it working - thanks for the tip about the EXACT PATH to the
share.

Mine was: "sftp://10.34.229.164/shares/System76-Lemur7; and, of course I
was leaving out the /shares/ part

Solution was:

Storage location: Network Server
  Server Address: smb://10.34.229/
  Folder: /shares/System76-Lemur7

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Wolf Rogner]

Did you try all the settings that I described in this thread?

1. I had to create a /var/cache/samba directory (which you might probably have 
already).
2. The settings dialog has changed.

Storage location
  Storage location: Network Server
  Server Address:  smb://server/share_name
  Folder: /complete/path/to/backup/directory

I had to play around for a while myself to figure this out. Setting the
/ was essential (as the path is concatenated as python strings).

On the backend, you must have write permission (the whole path, not just
the destination directory).

I hope this helps.

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[cement_head]

Okay, even weirder.

If I connect to the root of the share, it works, but not to the
subdirectory. HMMmmm..

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[cement_head]

I can connect with nautilus and browse drive.  BUT, when I try and start
DejaDup, I get this error:

Traceback (innermost last):
  File "/usr/bin/duplicity", line 1555, in 
with_tempdir(main)
  File "/usr/bin/duplicity", line 1541, in with_tempdir
fn()
  File "/usr/bin/duplicity", line 1380, in main
action = commandline.ProcessCommandLine(sys.argv[1:])
  File "/usr/lib/python2.7/dist-packages/duplicity/commandline.py", line 1127, 
in ProcessCommandLine
globals.backend = backend.get_backend(args[0])
  File "/usr/lib/python2.7/dist-packages/duplicity/backend.py", line 223, in 
get_backend
obj = get_backend_object(url_string)
  File "/usr/lib/python2.7/dist-packages/duplicity/backend.py", line 209, in 
get_backend_object
return factory(pu)
  File "/usr/lib/python2.7/dist-packages/duplicity/backends/giobackend.py", 
line 97, in __init__
self.remote_file.make_directory_with_parents(None)
 Error: g-io-error-quark: Operation not supported by backend (15)

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[cement_head]

Nevermind; bloody NAS drive was stuck in a loop - hard reset fixed it.

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[cement_head]

Just upgraded to 17.10; can't use DejaDup to backup to network NAS
drive.  Got this error.  Is there a workaround, or do I have to wait for
the new 18.04 release?

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Ads20000]

That will take work that Ubuntu developers might not have the time to do. The 
process is here for anyone who does have time and wants to get this into 17.10, 
it's thorough because updates into existing releases is risky...it might be 
that the fix from 37 needs to be backported to 36...
https://wiki.ubuntu.com/StableReleaseUpdates#Procedure

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Szymon Lipiński]

Is it possible to add this to Ubuntu 17.10? Current version 36.2 is
totally unusable, and I don't want to jump into 18.04 yet.

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Launchpad Bug Tracker]

This bug was fixed in the package deja-dup - 37.1-0ubuntu1

---
deja-dup (37.1-0ubuntu1) bionic; urgency=medium

  * New upstream release
- Fixes crash when restoring missing files (LP: #1729935)
- Updates smb error to be clearer (LP: #1715582)

 -- Michael Terry   Tue, 02 Jan 2018 17:12:49 -0500

** Changed in: deja-dup (Ubuntu)
   Status: Confirmed => Fix Released

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Michael Terry]

** Changed in: deja-dup
   Status: Fix Committed => Confirmed

** Changed in: deja-dup
   Status: Confirmed => Fix Released

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Launchpad Bug Tracker]

** Branch linked: lp:~ubuntu-desktop/deja-dup/ubuntu

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Michael Terry]

Thanks for debugging this one for me!  I've added code in master to
rename Server Address to Network Location, updated the sample smb URI in
the tooltip, and to add an explicit error message for smb: "Samba
network locations must include both a hostname and a share name."

** Also affects: deja-dup
   Importance: Undecided
   Status: New

** Changed in: deja-dup
   Status: New => Fix Committed

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Wolf Rogner]

:-) agree

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[claudio@ubuntu]

Wolf Rogner's remarks solves my SMB backupping problem, but I restate
his solution because it took me some time to understand it. The working
settings are:

Storage Location: Network Server
Server Address: smb://$SERVER/$SHARE (e.g. smb://homeserver/mybackups)
Folder: (empty, I backup to the share and not to a directory within the share).

So "Server Address" could maybe renamed as Remote URI, explaining that
the share name is part of the URI.

C.

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: deja-dup (Ubuntu)
   Status: New => Confirmed

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Wolf Rogner]

I installed smbclient (which is not installed by default) and tested the
connection. Worked fine.

Then I applied the connection string to deja-dup.

Selected drop-down Network Server
Server address: smb://10.1.0.4/nethome
Folder: /backup/mbpr13b

The difference to previous tests: Entering the smb service
(//server/servicename) works, entering just the server (smb://server)
does not.

I will attach a screenshot that demonstrates the issue (compared to
previous screenshots).

Maybe you want to exchange "Server Address" with "Service path" and in the help 
modal add
"smb://gnome.org/backup_dir" as the current description and help is definitely 
missleading.



** Attachment added: "Screenshot from 2017-10-19 12-09-27.png"
   
https://bugs.launchpad.net/ubuntu/+source/deja-dup/+bug/1715582/+attachment/4975691/+files/Screenshot%20from%202017-10-19%2012-09-27.png

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Michael Terry]

So I've mentioned I can't reproduce.  To be more verbose, when I use
your smb.conf[1] in comment #12 on my up-to-date Ubuntu 16.04 machine, I
can't even navigate to the share in nautilus.  I get "Failed to mount
Windows share: Invalid argument" when trying to log into the "nethome"
share on the server machine after providing my server user's
name/password.  :(

Maybe my config is still incomplete?

[1] I have to add "server role = standalone server" to make the config
work

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Wolf Rogner]

Uups,

I just saw that deja-dup is written in Vala. I fear, I will not be of
much help there.

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Wolf Rogner]

I have no issues connecting to the share from Nautilus.
The code in 34.4 worked flawless and reliably
In 34.4. the protocol was set using a dropdown and the server entered alone 
(see screenshots)
In 36.2 one has to enter the protocol and server but the path in a different 
location (see screenshots).

I have tried a simple Python script to connect to my server and it works
fine (so I don't think it is an issue with Gnome but rather an issue in
the new selection box).

Today the gnome gvfs package came in updated. The issue still persists.

If you want I can have a look at the source code and see if I can be of
assistance.

Currently after every upgrade I revert to 34.4 as the last working
solution.

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Wolf Rogner]

** Attachment added: "Config in 36.2."
   
https://bugs.launchpad.net/ubuntu/+source/deja-dup/+bug/1715582/+attachment/4961947/+files/Screenshot%20from%202017-10-04%2011-49-06.png

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Wolf Rogner]

** Attachment added: "Storage config in 34.4."
   
https://bugs.launchpad.net/ubuntu/+source/deja-dup/+bug/1715582/+attachment/4961946/+files/Screenshot%20from%202017-10-04%2011-43-19.png

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Wolf Rogner]

There is no difference whether I prepend a / in front of nethome.
I always get "Operation not allowed"

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Michael Terry]

That seems fine. (Question: does it work any better if you use relative
path?)

I haven’t been able to reproduce, but I agree there’s a problem. Smb is
the flakiest gvfs backend, it tends to be temperamental.

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Wolf Rogner]

Today update to deja-dup:amd64 (36.2-0ubuntu1) was offered.

Issue with gvfs still exists.

I am questioning whether I set up the backup path incorrectly:

server: "smb://server/"
path: "/absolute/path/to/backup"

is this correct?

(I tried every possible combination though)

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Wolf Rogner]

I tried to monitor via jouralctl -f

first attempts suggest that the application can't create a directory
/var/cache/samba

I added write access to /var/cache for world.

Then I got this

Sep 23 14:05:35 mbpr13b dbus-daemon[2751]: Activating service 
name='org.gnome.DejaDup'
Sep 23 14:05:35 mbpr13b dbus-daemon[2751]: Successfully activated service 
'org.gnome.DejaDup'
Sep 23 14:05:37 mbpr13b PackageKit[1129]: resolve transaction /511_eccbbeed 
from uid 1000 finished with success after 394ms
Sep 23 14:05:37 mbpr13b deja-dup[4000]: BackendRemote.vala:83: Could not find 
enclosing mount
Sep 23 14:05:37 mbpr13b deja-dup[4000]: BackendRemote.vala:83: Could not find 
enclosing mount

Mounting the directory manually

Sep 23 14:08:18 mbpr13b dbus-daemon[2751]: Activating service 
name='org.gnome.Nautilus'
Sep 23 14:08:18 mbpr13b dbus-daemon[2751]: Successfully activated service 
'org.gnome.Nautilus'
Sep 23 14:08:18 mbpr13b org.gnome.Nautilus[2751]: sys:1: PyGIWarning: Nautilus 
was imported without specifying a version first. Use 
gi.require_version('Nautilus', '3.0') before import to ensure that the right 
version gets loaded.
Sep 23 14:08:18 mbpr13b dbus[891]: [system] Activating via systemd: service 
name='org.freedesktop.hostname1' unit='dbus-org.freedesktop.hostname1.service'
Sep 23 14:08:18 mbpr13b systemd[1]: Starting Hostname Service...
Sep 23 14:08:18 mbpr13b nautilus[4157]: Called "net usershare info" but it 
failed: Failed to execute child process “net” (No such file or directory)
Sep 23 14:08:18 mbpr13b dbus[891]: [system] Successfully activated service 
'org.freedesktop.hostname1'
Sep 23 14:08:18 mbpr13b systemd[1]: Started Hostname Service.
Sep 23 14:08:20 mbpr13b gvfsd[2791]: mkdir failed on directory 
/var/cache/samba: Permission denied
Sep 23 14:08:20 mbpr13b gvfsd[2791]: mkdir failed on directory 
/var/cache/samba: Permission denied
Sep 23 14:08:20 mbpr13b gvfsd[2791]: mkdir failed on directory 
/var/cache/samba: Permission denied
Sep 23 14:08:20 mbpr13b gvfsd[2791]: mkdir failed on directory 
/var/cache/samba: Permission denied

The mount works though.

Sep 23 14:10:56 mbpr13b dbus-daemon[2751]: Activating service 
name='org.gnome.DejaDup'
Sep 23 14:10:56 mbpr13b dbus-daemon[2751]: Successfully activated service 
'org.gnome.DejaDup'
Sep 23 14:11:00 mbpr13b PackageKit[1129]: resolve transaction /512_dedcceee 
from uid 1000 finished with success after 422ms
Sep 23 14:11:00 mbpr13b deja-dup[4216]: BackendRemote.vala:83: Could not find 
enclosing mount
Sep 23 14:11:00 mbpr13b deja-dup[4216]: BackendRemote.vala:83: Could not find 
enclosing mount

Same issue.

Sep 23 14:15:08 mbpr13b org.gnome.Nautilus[2751]: **
Sep 23 14:15:08 mbpr13b org.gnome.Nautilus[2751]: 
ERROR:../src/nautilus-bookmark.c:387:nautilus_bookmark_connect_file: assertion 
failed: (!nautilus_file_is_gone (bookmark->file))
Sep 23 14:15:11 mbpr13b dbus-daemon[2751]: Activating service 
name='org.gnome.Nautilus'
Sep 23 14:15:11 mbpr13b dbus-daemon[2751]: Successfully activated service 
'org.gnome.Nautilus'
Sep 23 14:15:11 mbpr13b gsd-media-keys[2953]: Couldn't lock screen: Timeout was 
reached
Sep 23 14:15:11 mbpr13b org.gnome.Nautilus[2751]: sys:1: PyGIWarning: Nautilus 
was imported without specifying a version first. Use 
gi.require_version('Nautilus', '3.0') before import to ensure that the right 
version gets loaded.
Sep 23 14:15:11 mbpr13b dbus[891]: [system] Activating via systemd: service 
name='org.freedesktop.hostname1' unit='dbus-org.freedesktop.hostname1.service'
Sep 23 14:15:11 mbpr13b systemd[1]: Starting Hostname Service...
Sep 23 14:15:11 mbpr13b nautilus[4292]: Called "net usershare info" but it 
failed: Failed to execute child process “net” (No such file or directory)
Sep 23 14:15:11 mbpr13b dbus[891]: [system] Successfully activated service 
'org.freedesktop.hostname1'
Sep 23 14:15:11 mbpr13b systemd[1]: Started Hostname Service.
Sep 23 14:15:14 mbpr13b gvfsd[2791]: mkdir failed on directory /var/run/samba: 
Permission denied
Sep 23 14:15:14 mbpr13b gvfsd[2791]: mkdir failed on directory /var/run/samba: 
Permission denied
Sep 23 14:15:14 mbpr13b gvfsd[2791]: mkdir failed on directory /var/run/samba: 
Permission denied
Sep 23 14:15:14 mbpr13b gvfsd[2791]: mkdir failed on directory /var/run/samba: 
Permission denied
Sep 23 14:15:14 mbpr13b gvfsd[2791]: mkdir failed on directory /var/run/samba: 
Permission denied
Sep 23 14:15:14 mbpr13b gvfsd[2791]: mkdir failed on directory /var/run/samba: 
Permission denied

Tried sudo chown o+w /run

Mounting the share does not bring up any error messages any more.

Deja-dup still fails
and there are no files created in cache or run

Still: the old deja-dup from Ubuntu 17.04 works fine.

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https://bugs.launchpad.net/bugs/1715582

Title:
  "Operation not supported by backend" when backing up to smb server

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Wolf Rogner]

Just as a hint:
maybe you want to remove the new code for storage location and replace it with 
the old working one.

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Title:
  "Operation not supported by backend" when backing up to smb server

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[Bug 1715582] Re: "Operation not supported by backend" when backing up to smb server

[Michael Terry]

Can't reproduce yet...  Still thinking about this one.

** Summary changed:

- deja-dup fails to backup
+ "Operation not supported by backend" when backing up to smb server

** Changed in: deja-dup (Ubuntu)
   Status: Fix Committed => New

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https://bugs.launchpad.net/bugs/1715582

Title:
  "Operation not supported by backend" when backing up to smb server

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