I have some issues to unmount my Nas folder. When I try to unmount it with sudo umount /media/Nas6To i get a message telling me that the device is busy, and I cannot unmount it:
thomas@NZXT:~$ sudo umount /media/Nas6To
umount: /media/Nas6To: the target is active.
I have found on different post using fuser and lsof to identify the process keeping it busy. Unfortunately those commands returns nothing.
thomas@NZXT:~$ fuser -m /media/Nas6To
thomas@NZXT:~$
thomas@NZXT:~$ lsof | grep Nas6To
thomas@NZXT:~$
I would like to undestand what is keeping it busy. And what I could do be able to unmount it with sudo umount /media/Nas6To
My configuration:
Fstab configuration:
//10.0.0.110/6To /media/Nas6To cifs username=xxxx,password=xxxx,uid=1000,vers=2.0,iocharset=utf8,file_mode=0775,dir_mode=0770,noauto 0 0
Directory permissions (when mounted):
thomas@NZXT:~$ ls -la /media
total 28
drwxr-xr-x 8 root root 4096 feb. 28 14:40 .
drwxr-xr-x 20 root root 4096 jan. 30 15:25 ..
drwxrwx--- 2 thomas root 0 mars 13 13:59 Nas6To
OS (Xubuntu):
thomas@NZXT:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.2 LTS
Release: 20.04
Codename: focal
