I'm trying to mount my NAS (Netgear Readynas NV+) on my Debian 9. I managed to mount it, but I can only:browse existing folders & read existing files;create folders/document in root folder & newly created folders.I don't know why, but I can't write in already existing folders. When I run ls -l, I get that kind of output:drwxr-xr-x+ 3 jerry jerry 0 mai    1 22:19 Jerrydrwxr-xr-x+ 2 jerry jerry 0 juil.  9  2017 testsJerry was an existing folder, so I can't write anything in. tests is a newly created folder, in which I can do anything I want. I'm the owner of both, they have same permissions, but... Something's wrong with folder Jerry.Note that, using root, I can't even write in this directory, nor chown or chmod it.When I unmount/remount the NAS, I still can write in my tests folder.I noticed this behavior after upgrading from Debian 8.8 to Debian 9 (before, this was fine).My fstab configuration for this share is://mynas/Photos /media/mynas/Photos cifs credentials=/home/jerry/.smbcredentials,rw,uid=1000,gid=1000,file_mode=0644,dir_mode=0755,iocharset=utf8 0 0There may be some redundant options or errors, as I already tried various options to make it work, but I don't see why it would disallow writing on a specific existing folderSo, here are my questions:why is writing disabled on this existing folder (personal technical interest)?How to solve this?Thanks
Mounting a NAS through cifs: Can write new directories, but not write in existing directories
filesystems;cifs;nas