Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have installed a samba PDC but when I test the samba configurations file I am getting errors like these, "Invalid combination of parameters for service homes. Map system can only work if create mask includes octal 010 (S_IXGRP)."

My Configuration file is as follows

comment = Home Directories
 path = /home_srv1/%u
 valid users = %S
 read only = No
 create mask = 0660
 directory mask = 0770
 browseable = No

I tried to google but with no luck, Serverfault is always my best hope.

Thanks for helping out.

share|improve this question
up vote 2 down vote accepted

It means that the 'create mask' must include the binary 1 in the mask. create mask is an octal representation of the POSIX rights. The error message is telling you that 'group' requires 'execute' permissions for it to be valid.

1 = ..x
2 = .w.
3 = .wx
4 = r..
5 = r.x
6 = rw.
7 = rwx

A correctly formed "create mask" would look like create mask 0670.

share|improve this answer
Hey it worked, thanks a million! I used 770 instead. – Rungano Jan 11 '11 at 7:34

valid users = %S is redundant, you can safely remove it

share|improve this answer
Well thanks for you response but nothing has changed. – Rungano Jan 10 '11 at 14:47

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.