[MacPorts] #51302: Dovecot Setup Issue.

[MacPorts]

#51302: Dovecot Setup Issue.
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 Reporter:  karl@…   |      Owner:  markd@…
     Type:  request  |     Status:  new
 Priority:  Normal   |  Milestone:
Component:  guide    |    Version:  2.3.4
 Keywords:  Dovecot  |       Port:
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 Hi.

 I have a Mac mini running OS X Yosemite and I'm attempting to follow these
 instructions:
 https://trac.macports.org/wiki/howto/SetupDovecot

 I have a problem here:
 Step 2: create directories

 When I enter the following at the command line:
 sudo chown _dovecot:_dovecot /opt/local/var/log/dovecot
 OS X responds with the following:
 chown: _dovecot: illegal group name

 Previous command line code entered, from here:
 https://trac.macports.org/attachment/wiki/howto/SetupDovecot/Make_Dovecot_User.command:
 sudo dscl . -create /Groups/_dovecot
 sudo dscl . -create /Groups/_dovecot UniqueID 30
 sudo dscl . -create /Users/_dovecot
 sudo dscl . -create /Users/_dovecot UserShell /bin/false
 sudo dscl . -create /Users/_dovecot RealName "Dovecot IMAP Server"
 sudo dscl . -create /Users/_dovecot UniqueID 30
 sudo dscl . -create /Users/_dovecot PrimaryGroupID 30
 sudo dscl . -create /Users/_dovecot NFSHomeDirectory
 /opt/local/var/run/dovecot

 Notes:
 The _dovecot Group isn't assigned a PrimaryGroupID, but instead a
 UniqueID.
 A PrimaryGroupID of 30 is assigned to the _dovecot User.
 When I view a list of all Groups via the following command:
 dscl . readall /groups
 I see a PrimaryGroupID of 30 has already been assigned to _keytabusers.

 I’m unsure what to do; the following are potential options:
 Assign the Group _dovecot a PrimaryGroupID; this may prevent the 'chown:
 _dovecot: illegal group name' OS X response.
 Assign a different PrimaryGroupID, i.e. other than 30, to both User and
 Group to avoid the potential conflict with _keytabusers.

 There may have already been a _dovecot User or Group in the 200 range that
 I deleted as a result of my confusion.   Perhaps this was assigned during
 the earlier 'Install dovecot' command, i.e. 'port install dovecot'.   Do
 you know what the original PrimaryGroupID of such a User or Group was?
 If a different PrimaryGroupID is used, i.e. other than 30, presumably the
 one I deleted would be best.

 Another option is to upgrade to OS X El Capitan, although I'm not sure
 whether that will remove the dovecot install thereby allowing me to start
 again.   I'm also unsure whether I could run the 'port install dovecot'
 command a second time in OS X Yosemite to restore the _dovecot User /
 Group.

 Thanks and best regards,
 Karl.

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Ticket URL: <https://trac.macports.org/ticket/51302>
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