Ahh, perhaps after running winbindd this check the end of /var/log/samba/* and /var/log/syslog for any error messages explaining why it isn't starting? (sudo tail /var/log/syslog).
Ahh, perhaps after running winbindd this check the end of /var/log/samba/* and /var/log/syslog for any error messages explaining why it isn't starting? (sudo tail /var/log/syslog).