When trying to copy files from a local folder into a directory that is a mapping of my QNAP server I get an error message "... Read-only file system" - and this only since a couple of days.
Trying to change ownership with sudo chown ... also failed with
cenk@cenk-laptop:/mnt$ sudo chown cenk:cenk nas-video
chown: changing ownership of `nas-video': Read-only file system
The directory currently is owned by root/root but has 777 access rights.
drwxrwxrwx 1541 nobody nogroup 86016 2010-08-21 07:36 nas-music
drwxrwxrwx 73 nobody nogroup 4096 2010-09-25 14:08 nas-pictures
drwxrwxrwx 8 root root 12288 2010-09-13 23:27 nas-video
Here is the fstab line mapping the directory:
eldenas:/music /mnt/nas-music nfs
eldenas:/video /mnt/nas-video nfs
eldenas is my QNAP server.
No issues with the music directory but with the video one: