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I installed some development environment which created a postgres user account. The user is actually an OS X user account with the name of 'postgres'. This is different from a user account within postgres.

I don't remember what it was, it was some time ago (perhaps MAMP, but I don't know whether MAMP even supports postgres).

Anyway, this was later uninstalled using the provided uninstaller.

Now when I log into my Mac, the postgres user always appears. But there is no trace of it in System Preferences » User Accounts, and there's no entry for it in /etc/passwd.

What is prompting OS X to list the user account in the login screen? I'm struggling to figure out where else to remove it from.

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migrated from stackoverflow.com Oct 14 '11 at 8:11

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This is more of a question for superuser or serverfault. –  senfo Oct 14 '11 at 2:06
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have you looked at : linux.die.net/man/1/dropuser –  Kassym Dorsel Oct 14 '11 at 2:39
    
@senfo, sorry, my bad. –  carpii Oct 18 '11 at 20:33
    
@Kassym, thanks, but the user account is an OSX one called postgres, not a database user account inside postgres –  carpii Oct 18 '11 at 20:33

1 Answer 1

up vote 2 down vote accepted

You can use the terminal based DSCL command (see man dscl) to remove user accounts. Something like this may do the trick:

sudo dscl . -delete /users/postgres
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My problem disappeared anyway, because I moved to Lion and did a fresh install. I suspect your solution would have worked though, I'll make a note of it for future, thanks :) –  carpii Jan 6 '12 at 3:28

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