Re: RPM that modifies /etc/sysctl.conf

[Joe Van Dyk <joevandyk gmail com>]

On 2/2/06, Pim van Riezen <pi madscience nl> wrote:
> On Feb 2, 2006, at 12:26 AM, Wichmann, Mats D wrote:
>
> > what bugs me
> > about these schemes that usually consist of "cat >> somefile"
> > is that there's no clean uninstall from that... at least
> > conceptually it doesn't seem right that uninstalling any
> > given rpm doesn't undo the damage it has done to the system...
>
> The "cat >> somefile" option is also harmful because it will keep on
> adding the extra option for each consecutive upgrade.
>
> That said, there isn't always a good way to 'rollback' a change on
> deinstall. What if there are two packages that both need a certain
> option or configuration value changed. Simply undoing the change on
> uninstall of package A would break package B.
>
> In the case of sysctl, I think it is safest to put this in a package-
> specific initscript that uses /sbin/sysctl.

What if I need to add entries into /etc/fstab or /etc/resolv.conf? 
Are there scripts that will automatically add entries into those
files?