Обсуждение: PostgreSQL default data location

I am running Trustix 3.0 RC2 and am trying to set the default data
location for PostgreSQL as follows:
I changed the default PostgreSQL data directory by running initdb -D
/vol1/pgsql/data as the postgres user.
Next I edited /etc/sysconfig/postgresql to change the PGDATA variable to
the new directory.
When I try to start postgreSQL it chokes saying the data directory
/var/lib/posgresql/data has not been initilized, which is true but it
should be trying to use the new data directory!
I then also tried editing /etc/sysconfig/postmaster.args to add the -D
/vol1/pgsql/data option to it but this also did not work!
After looking at the /etc/init.d/postgresql script I put a symbolic link
in /etc/sysconfig/postgresql.d to point to the file
/etc/sysconfig/postgresql. Now if I use the command 'service postgrsql
start' everything works fine...But on reboot the same problem occurs,
postgresql tries to use the /var/lib/postgres/data directory still.
What seems weird is that the service command works (or
'/etc/init.d/postgresql start') but if I try to run the script
'/etc/rc3.d/S85postgresql start' it looks for the default data directory
and chokes.
To make a long story short how do I change the default data diretory for
PostgreSQL? What did I do wrong?

James Herbers

Found the problem,

It is a problem with the /etc/init.d/postgresql script.
On line 31 the script grabs the defaults from the
/etc/sysconfig/postgresql file which is where they should be. But then
on line 41-42  it goes to set these defaults by using the file
/etc/sysconfig/postgresql.d/${NAME} which would be the name of the
script running, fine if the script is /etc/init.d/postgresql. In the
case of going to run level 3 the file name is S85postgresql (a link to
/etc/init.d/postgresql)! Well there is no file with defaults named
/etc/sysconfig/postgresql.d/S85postgresql !!
Lines 40- 42 of this script should match the defaults from line 31 and
not reference the the name of the script being run. It should read:
# Override defaults from /etc/sysconfig/postgresql if file is present
[ -f /etc/sysconfig/postgresql ] && \
   . /etc/sysconfig/postgresql

NOT as it does:
# Override defaults from /etc/sysconfig/postgresql if file is present
[ -f /etc/sysconfig/postgresql.d/${NAME} ] && \
   . /etc/sysconfig/postgresql.d/${NAME}

James Herbers

James Herbers <james@herbers.ca> writes:
> It is a problem with the /etc/init.d/postgresql script.
> On line 31 the script grabs the defaults from the
> /etc/sysconfig/postgresql file which is where they should be. But then
> on line 41-42  it goes to set these defaults by using the file
> /etc/sysconfig/postgresql.d/${NAME} which would be the name of the
> script running, fine if the script is /etc/init.d/postgresql. In the
> case of going to run level 3 the file name is S85postgresql (a link to
> /etc/init.d/postgresql)! Well there is no file with defaults named
> /etc/sysconfig/postgresql.d/S85postgresql !!

You need to have a word with your Linux distro vendor, I think.  The
init scripts shipped by PGDG and Red Hat, at least, have gotten this
right for a long time.

            regards, tom lane