1

Context :

Existing debian buster acting as CIFS / SMB client

Problem :

After migration from buster to debian bullseye, mount point is still working but uid and gid option are ignored at the filesystem level (but are correct within the mount command's output)

cat /etc/fstab :

...
//192.168.0.1/data    /mnt/data    cifs    _netdev,nodev,nosuid,noexec,credentials=/etc/credentials,uid=myuser,gid=mygroup,file_mode=0660,dir_mode=0770,vers=1.0     0       0
...

mount : (uid 101 is myuser and gid 101 is mygroup so here values are correct)

...
//192.168.0.1/data on /mnt/data type cifs (rw,nosuid,nodev,noexec,relatime,vers=1.0,cache=strict,username=cifslogin,uid=101,forceuid,gid=101,forcegid,addr=192.168.0.1,soft,unix,posixpaths,serverino,mapposix,acl,rsize=1048576,wsize=1048576,bsize=1048576,echo_interval=60,actimeo=1,_netdev)
...

ls -la /mnt/data :

drwxr-xr-x 3 1100 users    0 Sep 13 00:01 .
...
Cerber
  • 1,291

1 Answers1

1

After some trial and error I found out that there exist two options forceuid and forcegid that can be leveraged to ignore a samba server's unix extension.

cat /etc/fstab :

...
//192.168.0.1/data    /mnt/data    cifs    _netdev,nodev,nosuid,noexec,credentials=/etc/credentials,uid=myuser,forceuid,gid=mygroup,forcegid,file_mode=0660,dir_mode=0770,vers=1.0     0       0
...
Cerber
  • 1,291