Re: Recover PostgreSQL database folder data

[Edson Lidorio <edson@xxxxxxxxxxxxxxx>]

On 22-04-2017 06:40, Magnus Hagander wrote:

On Sat, Apr 22, 2017 at 3:05 AM, Cat <cat@xxxxxxxxxx> wrote:

On Fri, Apr 21, 2017 at 08:20:38PM -0300, Edson Lidorio wrote:
> Ls -la /var/lib/pgsql/9.6/data
>
> drwx------. 20 postgres postgres  4096 Abr 21 17:52 .
> drwx------.  4 root     root        51 Abr 21 06:33 ..

Ensure that the user 'postgres' has permissions to get to
this dir from / up. This may either mean changing permissions
on some directories or changing ownership.

More than likely / /var /lib are a permissions thing (likely
need to be u+rwx,g+rx,o+rx) and /var/lib/pgsql/ and up is an
ownership thing (postgres:postgres) but this is not guaranteed
so take care.

Since this is CentOS, I would also look into if it's selinux things that are incorrect. The easiest way is to turn it off and see if that fixes it -- if it does, then read up on the selinux docs for how to figure out what is wrong and probably use restorecon to get things back in order. 

--

 Magnus Hagander
 Me: https://www.hagander.net/
 Work: https://www.redpill-linpro.com/

Friends,
The problem, was the selinux of CentOS, I disabled the selinux and applied the pemissions again and PostgreSQL started normally.

Used Commands:
# sudo /usr/sbin/setenforce 0
# sudo chown postgres /var/lib/pgsql/9.6/
#  sudo chown postgres:postgres /var/lib/pgsql/9.6/data
# chmod 700 /var/lib/pgsql/9.6/
# sudo systemctl start postgresql-9.6

Thank you all

Note: Looking at google, I noticed that there is more people with this problem. It's a problem with CentOS and PostgreSQL, which does not go down very well.