[CentOS] postfix install error: fatal file /etc/postfix/main.cf: parameter setgid_group: unknown group name: postdrop

Rainer Traut tr.ml at gmx.de
Tue Aug 26 15:02:49 UTC 2008


Ok, think I found the cause...

The server I try to install to has heartbeat/cluster software installed.
I already has a group with GID 90:
# grep 90 /etc/group
haclient:x:90:

The postfix rpm has hardcoded:
/usr/sbin/groupadd -g 90 -r postdrop 2>/dev/null

So that's the reason I get the messages...

Thx for all your help
Rainer


Rainer Traut schrieb:
> Thx for your answer.
> 
> Ned Slider schrieb:
>> Rainer Traut wrote:
>>> Trying to switch from sendmail to postfix I did:
>>>
>>> # yum remove sendmail
>>>
>>> which resulted in erasing of:
>>> mdadm sendmail-doc sendmail sendmail-cf mutt fetchmail redhat-lsb
>>>
>>> I did then:
>>>
>>> yum -y install redhat-lsb.x86_64 postfix
>>>
>>> and got this error:
>>>
>>>   Installing: postfix                      ######################### 
>>> [1/2]
>>> postfix: fatal: file /etc/postfix/main.cf: parameter setgid_group: 
>>> unknown group name: postdrop
>>> warning: group postdrop does not exist - using root
>>> warning: group postdrop does not exist - using root
>>> warning: group postdrop does not exist - using root
>>> warning: group postdrop does not exist - using root
>>>   Installing: redhat-lsb                   ######################### 
>>> [2/2]
> 
>> You don't need to remove sendmail, you can just use system-switch-mail 
>> to set postfix as the MTA.
>>
> 
> I knew that thx.
> I tested the exact same steps on our internal testmachine. Must admit it 
> has EL5.2 x86_64 on it but did not show this behaviour.
> 



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