In order to increase booting speed i've disabled many unwanted services at start up while in a Desktop Enviorment (KDE) on my RH7.3 system.

I looked into the rc5.d (which is my default run level) and I can't figure out HOW the files in the directory are marked bootable or not.

For example, I disabled ipchains at bootup and looked at the file after modiftying my bootup list and nothing was changed.

My question is, where and what file determines whats bootable or not. Would like to be able to do this all in console mode for runlevel 3 machines I will be working with.

TY
Ben.

Hmm... this not the easiest thing. First, try to use config-tools, if available. This should succeed. If not try the following:
For each directory, there is a folder called rcX.d, where x is the runlevel. I think this is the same for all distros. In there should be symbolic links with numbers before them and each one starts a service. So if you have in rc5.d S800<something>, this means that this service 'something' gets started when switched to Runlevel X. So, if you remove this symbolic link, the service shouldn't start.
This is the way, LFS is handling bootup. However, I don't know whether distros work different - i'm sure you'll find out.
Good luck

Yea, Got that part down, just confused cause when i use a GUI config app to edit what services i want at boot up and ones I don't, the symbolic links still remain in the rcX.d directory.

So im not sure what exactly is modified, the files themself are not touched. Perhaps theirs an index file for rcX.d files?

B.

You can figure using the timestamp which file got modified...just to figure. May be, the name of the symbolic link changes in a way, the bootup process doesn't call it anymore. For example, S800 gets changed to something else...