Re: Regarding parallel running of 9.1 and 9.2beta2

On Fri, Jun 29, 2012 at 1:47 PM, Atri Sharma <atri(dot)jiit(at)gmail(dot)com> wrote:

> Hi,
>
> I am running PostgreSQL 9.1 currently and I want to run 9.2beta2
> simultaneously with it.Is it possible?
>
>
Yes, You can have multiple PostgreSQL versions on same host.

I downloaded the 9.2beta2 sources,untared them and ran
> ./configure,make and make install without uninstalling 9.1.
>

./configure --prefix=<new location of PostgreSQL 9.2 beta2 binaries>

make

make install

<new location of PostgreSQL 9.2 beta2 binaries>/bin/initdb -D <new data
directory location of 9.2beta2>

modify "Port" number in postgresql.conf file located under <new data
directory location of 9.2beta2>

<new location of PostgreSQL 9.2 beta2 binaries>/bin/pg_ctl -D <new data
directory location of 9.2beta2> start

>
> Now,when I am running pg_ctl start,I am getting the following error:
>
> pg_ctl start
> server starting
> gitc(at)ubuntu:~/Downloads$ FATAL: database files are incompatible with
> server
> DETAIL: The data directory was initialized by PostgreSQL version 9.1,
> which is not compatible with this version 9.2beta2.
>
> Please help me.What should I be doing to recover from this error and
> get back to 9.1?
>
>
Suspecting for this error message is, binaries upgraded upto 9.2beta2 &
PostgreSQL instance running with PostgreSQL 9.1 binaries and again you are
trying to start instance with pg_ctl of 9.2beta2 binary.

--

Thanks & Regards,

Raghu Ram