[Samba] SAMBA failing to start after upgrade

[Harsh Kukreja]

Hi Rowland

The samba-tool command is not working please see the error below:

root at iumdcdp01:/home/administrator# samba-tool
ERROR(<type 'exceptions.ValueError'>): uncaught exception - bad marshal
data (unknown type code)
  File "/usr/bin/samba-tool", line 46, in <module>
    retval = cmd._run("samba-tool", subcommand, *args)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line
210, in _run
    cmd = self.subcommands[cmd_name]
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/main.py", line 35, in
__getitem__
    fromlist=['cmd_%s' % attr]),

Please help to fix it.

*Harsh Kukreja *Systems Administrator
*International University of Namibia *Tel: 061-4336000 - E-mail: h.kukreja
@ium.edu.na - Web:
*http://www.ium.edu.na <http://www.ium.edu.na/>*Private Bag
14005,Bachbrech. 21-31 Hercules Street, Dorado Park, Windhoek, NAMIBIA






On Fri, Nov 17, 2017 at 12:06 PM, Rowland Penny via samba <
samba at lists.samba.org> wrote:

> On Fri, 17 Nov 2017 11:38:22 +0200
> Harsh Kukreja <h.kukreja at ium.edu.na> wrote:
>
> > The upgrade shouldn't have touched the Samba database, just the
> > binaries etc, so check the smb.conf file and recreate it if you cannot
> > find it, or if it is incorrect.
> > The smb.conf still exists
> > [global]
> >         workgroup = IUMNET
> >         realm = IUMNET.EDU.NA
> >         netbios name = IUMDCDP01
> >         server role = active directory domain controller
> >         dns forwarder = 172.16.10.254
> >         domain master = yes
> >         preferred master = yes
> > #       server services = +s3fs,+dnsupdate,+dns,+winbind,+kdc,+ldap
> >         password server = 172.16.10.5
> >         allow dns updates = nonsecure and secure
> > #       lanman auth = Yes
> > #       client lanman auth = Yes
> >         ntlm auth = yes
> >         client use spnego = no
> >         client ldap sasl wrapping = sign
> > #       ldap ssl ads = yes
> > #       ldap ssl = start tls
> >         ldap server require strong auth = no
> > #       wins server = iumnet.edu.na
> > #       wins support = Yes
> >         time server = Yes
> >         template shell = /bin/bash
> >         template homedir = /home/%U
> > #       idmap config * : backend = tdb
> > #       idmap config *:range = 50000-1000000
> >         full_audit:prefix = %u|%I|%m|%S
> >         full_audit:failure = connect
> >         full_audit:success = connect disconnect
> >
> > seize the FSMO roles to another DC, forcibly demote the dead DC
> > Please help with the commands to seize the FSMO roles to another DC
> > and forcibly demote the dead DC.
>
> OK, open a terminal on the DC you want to seize the FSMO roles to.
> Type 'samba-tool --help'
> This will show you the sub-commands available, the first one you want
> is 'fsmo', so enter 'samba-tool fsmo --help'
>
> This will display:
>
> Usage: samba-tool fsmo <subcommand>
>
> Flexible Single Master Operations (FSMO) roles management.
>
>
> Options:
>   -h, --help  show this help message and exit
>
>
> Available subcommands:
>   seize     - Seize the role.
>   show      - Show the roles.
>   transfer  - Transfer the role.
> For more help on a specific subcommand, please type: samba-tool fsmo
> <subcommand> (-h|--help)
>
> Now enter 'samba-tool fsmo seize --help'
>
> From the output of the above command, you should be able to work out
> the command to seize the FSMO roles to this DC is:
>
> samba-tool fsmo seize --role=all --force -UAdministrator
>
> You will be prompted for a password
>
> The roles should be now be 'seized' to this DC.
>
> You can use another user instead of 'Administrator', but the user must
> have the required permissions.
>
> you use '--force' to stop the command trying to transfer the roles,
> this will fail because the old DC is offline, so why bother ;-)
>
> I will leave you to work out how to remove the other dead server, but
> as a hint, it is under 'samba-tool domain'
>
> Rowland
>
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