Trouble installing PostgreSQL

Behrang Saeedzadeh behrangsa at
Tue Dec 11 04:47:51 PST 2012

*(Forgot to reply-all)*

Hi Vincent,

Yes, it's a Persian name. :)

Regarding the error I was getting, I think the postgres user did not have
read access into my home directory (i.e. ~), as I was running the command
from there. After I CD'd into /opt/local/var/db/postgresql92/defaultdb/ for
which the postgres user had read/write access, the command completed

Behrang Saeedzadeh

On Mon, Dec 10, 2012 at 8:19 PM, Vincent Habchi <vince at> wrote:

> Le 10 déc. 2012 à 08:46, Ryan Schmidt <ryandesign at> a écrit :
> >> sudo sysctl -w kern.sysv.shmmax=1073741824
> >> sudo sysctl -w kern.sysv.shmall=1073741824
> >
> > What does that do?
> This increases the contents of shared memory available to userland
> processes using System V semantics. The last line should *not* be a size in
> bytes, but a size in pages (= 4,096 bytes). I had to do that too, the
> default values happens to be slightly undersized, especially when you need
> to support more than a few clients.
> But the problem of Behrang (now, that’s a Persian name, isn’t it?) is not
> related to that. It is caused by using sudo from a nonexistent working
> directory (i.e. “.”), probably because it was deleted while installing
> postgresql92. Try doing “cd” first, then all the other commands.
> Vincent
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