On Tue, 12 Jul 2011, Lamar Owen wrote:
> To: CentOS mailing list <centos@xxxxxxxxxx>
> From: Lamar Owen <lowen@xxxxxxxx>
> Subject: Re: 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
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