[Samba] Samba4 bug - "mount error(5): Input/output error"

[steve]

On Sun, 2014-05-11 at 12:26 +0100, Rowland Penny wrote:
> On 11/05/14 10:00, Leander Schäfer wrote:
> > Hi Rowland,
> >
> > do you maybe have any idea what could potentially cause this bug? 
> > smbclient thrwos me back a
> >
> > mount error(5): Input/output error
> >
> > when I try to mount the remote smbFS. It doesn't happen with my MacOSx 
> > and Windows 7 as client but it happens with Linux OSs and with a 
> > Konica Minolta copy machine with a scanner to samba function. The 
> > first try to mount fails with the above error. The second try will be 
> > a success right away without any errors. I don't understand what 
> > causes this behaviour?! I thought you may have an idea?
> > Thank you
> >
> >
> >
> > Samba Server is Version 4.1.7 and it's running on a FreeBSD 10.0 
> > RELEASE (fresh installation)
> > Samba client (eg. on Linux) is Version 3.5.4-0.83.el5_7.2
> > mount cmd on (eg. Linux is):
> >
> > mount -t cifs //10.0.0.200/MYSHARE -o 
> > username="${SMB_USR}",password="${SMB_PWD}",sec=ntlmv2 /mnt/MyShare
> >
> > Below is my config, if useful:
> >
> > cat << EOF > /usr/local/etc/smb4.conf
> > # ================================== #
> > #        Samba4 - FileServer         #
> > # ================================== #
> >
> >
> > # ============= Global ============= #
> >
> > [global]
> >
> >   # Basic server settings
> >   workgroup          = $( echo ${DOMAINNAME^^} | awk -F'.' '{print $1}' )
> >   realm              = ${DOMAINNAME^^}
> >   netbios name       = ${SERVERNAME^^}
> >
> >   # Password backend
> >   passdb backend     = tdbsam
> >
> >   # Logging
> >   log level    = 4
> >  #log level    = auth:3
> >   max log size = 0
> >
> >   # NTLMv2
> >   ntlm auth          = No
> >   lanman auth        = No
> >   client ntlmv2 auth = Yes
> >
> >   # Printing
> >   load printers = No
> >   printing      = BSD
> >   printcap name = /dev/null
> >
> >   # Default masks
> >   unix extensions      = No
> >   create mask          = 0777
> >   force create mode    = 0777
> >   directory mask       = 0777
> >   force directory mode = 0777
> >
> >   # Miscellaneous
> >   veto oplock files  = /*.doc/*.xls/*.ppt/*.mdb/*.docx/*.xlsx/*.ppt
> >   veto files         = 
> > /.snap/.windows/.zfs/Thumbs.db/.DS_Store/._.DS_Store/.apdisk/.TemporaryItems/
> >   wide links         = No
> >
> >
> > # ============= Shares ============= #
> >
> > [...]
> >
> > [MyShare]
> >   comment     = MyShare - Storage
> >   path        = /mnt/MyShare
> >   guest ok    = No
> >   read only   = No
> >   valid users =  myuser, leander, patrick
> >   force user  =  myuser
> >   vfs objects = recycle, zfsacl, streams_xattr
> >   nfs4:mode   = special
> >   nfs4:acedup = merge
> >   nfs4:chown  = yes
> >   zfsacl:acesort = dontcare
> >   recycle:repository     = /mnt/vMachines/.Trashes
> >   recycle:directory_mode = 0777
> >   recycle:keeptree       = Yes
> >   recycle:versions       = Yes
> >   recycle:touch          = Yes
> >   recycle:touch_mtime    = No
> >   recycle:exclude        = ?~$*,~$*,._*,.smbdelete*
> >
> > [...]
> > EOF
> > chmod 0644       /usr/local/etc/smb4.conf
> > chown root:wheel /usr/local/etc/smb4.conf
> >
> >
> > Kind regards,
> > Leander
> Hi, have you tried using 'sec=krb5' instead ? I am not really an expert 
> here, Steve knows far more about this than me, so perhaps he will chime 
> in with some advise.
> 
> Rowland

Hi
No, sorry. No client smb.conf, don't know whether client is joined to
the domain, maybe the linux client that is mentioned is a Linux client
that is not joined to the domain and that it is a NT domain. What is the
rôle of, 'Samba Server is Version 4.1.7', is this the DC or is this the
file server where we do have the smb4.conf? smb4.conf? I don't think we
have kerberos anywhere, do we? Is this an AD domain? needinfo.