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Subject:	Re: postgresql - How do I upgrade Postgres database in Cygwin? - Server Fault
To:	cygwin AT cygwin DOT com
References:	<5702BCFD DOT 6000103 AT oliveyou DOT net> <5702C4B3 DOT 3030506 AT oliveyou DOT net>
From:	Marco Atzeri <marco DOT atzeri AT gmail DOT com>
Message-ID:	<5702C853.30007@gmail.com>
Date:	Mon, 4 Apr 2016 22:02:27 +0200
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On 04/04/2016 21:46, Chloe wrote:
> OK now I really need help. I tried to install version 9.4.4-2 of
> Postgres with
> ftp://www.fruitbat.org/pub/cygwin/circa/2015/09/25/151012/index.html,
> but now it won't start. I also tried to install 9.4.4-1 but that won't
> work either. I also tried to exit all Cygwin processes and run 'dash'
> and 'rebaseall', but it didn't help. How do I install an old version of
> Postgres 9.4 to upgrade to 9.5?
>
> $ /usr/sbin/postgres --version
> postgres (PostgreSQL) 9.4.4
>
> $ /usr/sbin/postgres
> FATAL:  could not create shared memory segment: Function not implemented
> DETAIL:  Failed system call was shmget(key=5432001, size=40, 03600).

have you configured cygserver as service and run it ?

The shared memory capability depends on cygserver.
https://cygwin.com/cygwin-ug-net/using-cygserver.html

Regards
Marco



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