I found that I could open the shared folders through the file manager, & copy files back & forth which works fine, but I would still like to be able to mount them in my file system so that I can access them via cli or file dialog boxes. I am no loner getting the "Invalid argument" error, now the error is "No such file or directory". Here is my current line in fstab:

//192.168.1.1/shared /media/shared cifs rw,username=shea1roh,domain=MORNINGSTAR,vers=3.11 0 0

I have tried different vers arguments, 3.0, 3.11, & 3.1.1, as well as leaving the vers argument off, & I get the "no such file or directory" error each time. I have confirmed that the folder /media/shared exists on my client, & when I run smbclient -L \\hostname, it lists a shared folder called "shared". Any other suggestions? Thanks

From "man mount.cifs" on one of my Mint machines

vers=arg
SMB protocol version. Allowed values are:

· 1.0 - The classic CIFS/SMBv1 protocol.

· 2.0 - The SMBv2.002 protocol. This was initially introduced in Windows Vista Service Pack 1,
and Windows Server 2008. Note that the initial release version of Windows Vista spoke
a slightly different dialect (2.000) that is not supported.

· 2.1 - The SMBv2.1 protocol that was introduced in Microsoft Windows 7 and Windows Server 2008R2.

· 3.0 - The SMBv3.0 protocol that was introduced in Microsoft Windows 8 and Windows Server 2012.

· 3.1.1 or 3.11 - The SMBv3.1.1 protocol that was introduced in Microsoft Windows Server 2016.

If that were me, I'd try dropping the parameters one at a time to see when the message changed. I'd also check "man mount" which leads to "man mount.cifs", but to me the obvious thing is that I had "vers" in my line and you have "ver".

[edit]
Note also that "vers" does not seem to appear in all man pages on the internet so it may be O/S dependant. Check from your o/s's terminal.
[/edit]

Thanks for the info, the error message is different, so that is progress, right? :-) This is what I have in fstab now, I'm trying the minimum options to get it working:

//clear72gateway/shared /media/shared cifs rw,username=shea1roh,domain=MORNINGSTAR,ver=3.0 0 0

The error has changed to

mount error(22): Invalid argument

Thanks

On my Pi I use the following line:

//server.my.domain/videos /mnt/server_videos cifs x-systemd.automount,noauto,rw,iocharset=utf8,username=nick,password=********,uid=osmc,gid=osmc,file_mode=0770,dir_mode=0770,domain=home,vers=3.0 0 0

x-systemd.automount should allow it to remount if it looses contact then becomes available again.
uid, gid,file_mode and dir_mode are probably unimportant
domain was critical. This is the workgroup in ClearOS. This is what you need.
vers takes it away from using smb1 to the better and more secure smb3.