[Samba] Can't get Win7 to mount

[Rowland Penny]

On Sat, 1 Mar 2025 04:22:16 -0600
Mike Brown via samba <samba at lists.samba.org> wrote:

> On Sat, Mar 01, 2025 at 09:36:24AM +0000, Rowland Penny via samba
> wrote:
> > On Fri, 28 Feb 2025 16:39:56 -0600
> > Mike Brown via samba <samba at lists.samba.org> wrote:
> > 
> > > Fedora 41
> > > Samba 4.21.4
> > > 
> > > The smbd under Fedora 27 (yes it is old) has no problem letting
> > > Win7 mount stuff.
> > > 
> > > Any ideas on getting Win7 to mount from the newer Fedora?
> > > 
> > 
> > This is all down to the SMB protocols being used. Samba, since
> > 4.11.0, uses a minimum of SMBv2, your Win7 machine uses SMBv1.
> > 
> > You probably just need to add 'vers=1.0' to your mount command on
> > fedora, see 'man mount.cifs' for more information.
> 
> I found the following in the man page for smb.conf:
> 
> The value of the parameter (a string) is the highest protocol level
>            that will be supported by the client.
> 
>            Possible values are :
> 
>                   •   CORE: Earliest version. No concept of user
> names.
> 
>                   •   COREPLUS: Slight improvements on CORE for
> efficiency.
> 
>                   •   LANMAN1: First modern version of the protocol.
> Long filename support.
> 
>                   •   LANMAN2: Updates to Lanman1 protocol.
> 
>                   •   NT1: Current up to date version of the
> protocol. Used by Windows NT. Known as CIFS.
> 
>                   •   SMB2: Re-implementation of the SMB protocol.
> Used by Windows Vista and later versions of Windows. SMB2 has sub
>                       protocols available.
> 
>                              •   SMB2_02: The earliest SMB2 version.
> 
>                              •   SMB2_10: Windows 7 SMB2 version.
> 
>                       By default SMB2 selects the SMB2_10 variant.
> 
>                   •   SMB3: The same as SMB2. Used by Windows 8. SMB3
> has sub protocols available.
> 
>                              •   SMB3_00: Windows 8 SMB3 version.
> 
>                              •   SMB3_02: Windows 8.1 SMB3 version.
> 
>                              •   SMB3_11: Windows 10 SMB3 version.
> 
>                       By default SMB3 selects the SMB3_11 variant.
> 
>            Normally this option should not be set as the automatic
> negotiation phase in the SMB protocol takes care of choosing the
> appropriate protocol.
> 
> Notice the last paragraph.  Supposidly negotiation is supposed to
> take place, meaning that I shouldn't have to do anything.  I added
> the line in my usenet-new section with SMB2, but there was no
> difference.  Something else is wrong?
> 

Yes, negotiation does take place, it starts at SMBv3 and negotiates
down to an agreeable mutual level. The minimum default for Samba was
changed at 4.11.0 to SMBv2, so if your Win7 is capable of SMBv2, it
should work, but you may have to set something in the registry, what, I
do not know, I do not use win7 now.

Rowland