[COLUG] Linux Startup Sequence

[Rick Troth]

I always forget which Linux standards come from the LSB
and which come from the FHS, but for INIT scripts there is
a programmatic way to get them sequenced right.  You want for
Postgres to start after "network".  And it might be wired that way
since in your case it is a VMware-specific address you want.

Look at the INIT script for Postgres.
See where it requires other components.
See if you can modify it to also require VMware networking.
Then do something like ...

	chkconfig postgres off
	chkconfig postgres on

to force the INIT infrastructure to sequence that run level correctly.

-- R;   <><


On Wed, 19 Mar 2008, Mark Erbaugh wrote:

> I need some help understanding the startup sequence, when things are
> loaded.
>
> I'm running Ubuntu Dapper (6.06).  I have Postgresql 8.1 installed to
> startup when the system is started. I also have VMware server set to
> start.  I have Postgres configured to listen on one of the virtual
> networks that VMware creates (192.168.168.1)
>
> Postgres is refusing to listen to that port unless I restart it after
> the system is running. The Postgres log indicates that it can't create a
> listen socket on that address.  I assume that that is because the
> network has not been created when Postgres is trying to start.  I looked
> in the various etc/rcX.d directories.  The start command for Postgres
> was S20postgresql-8.1, the start command for VMWare was S90vmware.
>
> >From what I understand that means the Postgres would start first. I
> renamed the S20postgresql-8.1 to S91postgresql-8.1.  I thought that
> would make it start after VMware, but I still have to manually restart
> Postgres to get it work on 192.168.168.1
>
> Here are the relevant files from my /etc/rc2.d directory:
>
> K08vmware
> S90vmware
> S91postgresql-8.1
>
> There are no entries for either VMware or Postgresql in /etc/rcS.d
>
> runlevel returns N 2, which I think means my Ubuntu boots directly to
> runlevel 2
>
> Can someone explain it to me?  Is there any way I can figure out what
> script is actually staring Postgres?
>
> Also, I notice that other distros tend to use a different runlevel for
> the multi-user GUI.  Is that just a convention or do the different
> runlevels have different meanings?
>
> Thanks,
> Mark
>
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