On Tue, 12 Jul 2011, Lamar Owen wrote: > To: CentOS mailing list <centos at centos.org> > From: Lamar Owen <lowen at pari.edu> > Subject: Re: [CentOS] Centos 6 Server has no GUI > > On Tuesday, July 12, 2011 08:44:00 AM Keith Roberts wrote: >> How can Linux _not_ have run levels. I thought that was a >> central part of the design of Linux? > > No, it's a central part of the design of the old System V Init. C6, SL6, and upstream EL6 use upstart instead of SysVInit. > > EL7, if the direction of Fedora is any indication, won't have classic runlevels, but will use systemd. > > The Linux kernel knows nothing of runlevels; runlevels are userspace and have been since SysVInit was first used (and even before). All the kernel cares about is that it hands execution off to a userspace process that then takes care of further boot. That process can be /bin/sh or anything else, the kernel doesn't care. OK, thanks for pointing that out Lamar. So I take it we can still choose which services we want running at boot time on C6? Keith ----------------------------------------------------------------- Websites: http://www.karsites.net http://www.php-debuggers.net http://www.raised-from-the-dead.org.uk All email addresses are challenge-response protected with TMDA [http://tmda.net] -----------------------------------------------------------------