Ubuntu Support Template
Ubuntu Version:
| Distributor ID: | Ubuntu |
|---|---|
| Description: | Ubuntu 25.10 |
| Release: | 25.10 |
| Codename: | questing |
Desktop Environment (if applicable):
KDE Plasma
Problem Description:
This is a duplicate of Webdav mounts broken since 25.10 (Quokka), but that ticket was closed with no resolution, and I’m now having the same problem since upgrading to 25.10 today.
Example:
% echo >> /etc/fstab "http://mydavserver/remote.php/dav/files/timwa /mountpoint davfs rw,user,uid=timwa,_netdev 0 0"
% mount -a
% cd /mountpoint
% ls
ls: general io error: Invalid argument (os error 22)
Relevant System Information:
% dpkg -l davfs2
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-==============-============-============-================================================
ii davfs2 1.7.1-1 amd64 mount a WebDAV resource as a regular file system
Screenshots or Error Messages:
Nothing useful in any system logs that I can find :-(.
Just
general io error: Invalid argument (os error 22)
when accessing the mounted filesystem.
What I’ve Tried:
Searching the Internet and finding someone already had the issue :-). It works fine from Dolphin, which of course isn’t using the system davfs driver, and it works fine from all my other machines with different clients - it only fails on the machine that was upgraded to 25.10.