Re: ERROR while creating new user - could not open relation mapping file global/pg_filenode.map

On 11/23/2015 11:38 AM, Sribeiro wrote:
> Hi All,
>
> I am trying to use postgresql with a Rails app, and I am having an issue
> creating a new user/password.
> I get the following message:
> createuser: could not connect to database postgres: FATAL: could not open
> relation mapping file "global/pg_filenode.map": No such file or directory
>
> I believe I might of accidentally deleted this file and after sudo
> uninstalling Postgres with Brew and re-installing I still cannot get it back
> or to work.

So as part of the uninstall/install did you do initdb over again or are 
you reusing the previous cluster directory?

Have you looked in the $PGDATA/global directory to see if 
pg_filenode.map is indeed there or not?

Do you have a backup of the database(s)?


>
> I am using the latest version of Postgres and I'm on Mac OS X 10.10.4
>
> Any idea on how I can fix this issue? Thanks so much in advance.
>
> Sergio
>
>
>
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>
>


-- 
Adrian Klaver
adrian.klaver@aklaver.com