I am using Lubuntu 20.04 which revives a former Windows 10 Compaq 8510 laptop.
There are 2 problems connecting to the Samba USB drive connected to my Raspberrypi.
When I click on Network → RPI → USB drive I end in a window which asks for username and password.
In that screen is option 3: Remember password forever.
The username is the username for the RPI Samba which is different than the Lubuntu username, the preset username in this login window is the Lubuntu username.
No way! It doesn’t remember, never! After a restart there is always the screen for logging in to the Samba server.
Strange thing is that from my Windows 10 computer I created network connections to the USB drive as well as to a directory on that USB drive.
After having setup these network connections I can simply get access to the USB drive without a new login.
Second problem: I cannot create a symlink to the USB drive, nor to a directory on that drive.
I give you my /etc/samba/smb.conf on the RPI for reference.
allow insecure wide links = yes
unix extensions = no
comment = Public Storage
path = /mnt/backup_1
valid users = @users
force group = users
create mask = 0660
directory mask = 0771
read only = no
guest ok = yes
follow symlinks = yes
wide links = yes