Joe Van Dyk wrote:
Say I want to add the following lines to /etc/sysctl.conf and do it via a RPM:
kernel.shmmax = 200000000
kernel.shmall = 20000000
Would my RPM just contain a patch? Or would I not want to do this
kind of thing through an RPM?
Our software requires a bunch of changes to a linux box in order to
run (modified kernel, the above change, a new compiler, etc). RPMs
are a sane way of pushing out the changes to the machines, right?
Create a file called /etc/opt/joe_van_dyk/sysctl.conf (silly example;
use whatever is appropriate) and have an init script (e.g.
/etc/init.d/joe_van_dyk) which runs "sysctl -p
/etc/opt/joe_van_dyk/sysctl.conf" on startup.
I typically put all of my config files in /etc/opt/{company}or
/etc/opt/{package} for the software I build at work.
In the RPM, you just need a post-install script to add the service, and
a pre-uninstall script to remove it (using /sbin/chkconfig). You may
wish to even apply the settings immediately after package installation
by adding a call to "/sbin/service joe_van_dyk start" in the
post-install script. Otherwise you will need to start the service
manually. (This may not be necessary for you, since you have to boot
the modified kernel anyway.)
With this mechanism, everything installs and uninstalls cleanly.
Regards,
Rob
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