Error operation not supported

[sheldonross]

Transmission is unable to save a torrent to a network (SMB/CIFS) share in 16.04.

This worked fine in 14.04. The torrent starts to download, but errors out after a few seconds.

The error message is

Operation not supported (/run/user/1000/gvfs/smb-share:server=nas-2x3tb.local,share=downloads/ubuntu-16.04-desktop-amd64.iso)

Not sure what logs or other information might be needed?

[sheldonross (ross-sheldon)]

Verified that this works fine on another PC connected the nas running 14.04.

Not my askubuntu question, so not the only one experiencing this.

http://askubuntu.com/questions/760631/transmission-and-deluge-fail-in-ubuntu-16-04-lts-saving-to-external-usb-hard-dri

[Launchpad Janitor (janitor)]

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

[Keerthivasan (rk-vasan87)]

I am experiencing the same issue. The download to SMB share via transmission starts and then errors out with the same error you are facing. I wasn't facing this in 14.04. I am facing this only in 16.04

[Luca Ciavatta (cialu)]

Same issue here on Ubuntu 16.04.

[Scott Calabrese Barton (scb)]

It appears to be a problem with permissions. I fixed the problems by changing the "rpc-username" and "rpc-password" fields in "~/.config/transmission/settings.json" to my own username and password.

[Scott Calabrese Barton (scb)]

never mind, that did not work

[Igor (4eppelin)]

Workaround that works for me is mounting NAS through /etc/fstab (or just mount -t cifs <servername> <username> ...).
https://ubuntuforums.org/showthread.php?t=2309866
https://wiki.ubuntu.com/MountWindowsSharesPermanently

PS: I had a problem with write access to the mount point with my special credentials. It was solved by using guest user:
//servername/sharename /media/windowsshare cifs guest,uid=1000,iocharset=utf8 0 0
It is strange because such permissions are set for this share: read/write for everyone.

[Tom Rogers (trnitzjunk)]

I encountered this issue when mounting via the 'mount -t cifs' command, but when I added an fstab entry and mounted it that way, the issue no longer occurred.

[Seiferoth (geckich)]

Hi all. I had the same issue with permissions and Transmission (Debian 9). Automounted cifs share in Gnome Nautilus works perfectly everywhere except Transmission.

Solved this issue by manually mounting with options:

sudo mount -t cifs //server/share /mountpath -o user=cifs_user,password=cifs_pw,uid=1000,gid=1000,iocharset=utf8

uid and gid belongs to desktop user you logging in and can be obtained by command:

id

or

cat /etc/passwd

[cdoublejj (cdoublejj)]

i've had this bug for a few years now on multiple buntu based distros. it cropped up AFTER 18.04 lts. i have not tried any non buntu based distros. i have tried many many many many many many many arguments and lines in the ftab file and verifying the user id. these days i was thinking it could be because transmission and other torrent apps use snaps which can only access main drive and not remote shares. not sure that was true with 20.04. struggling for years hate to use windows to save to ISOs to and SMB share but, its that unfixable after trying for a few years.