Date: Thu, 18 Mar 1999 00:17:38 -0600 From: Michael Maxwell <drwho@xnet.com> To: freebsd-questions@FreeBSD.ORG Subject: Re: runlevels ? Message-ID: <19990318001738.B66758@drwho.xnet.com> In-Reply-To: <Pine.NEB.3.96.990317210046.20959N-100000@ppp-rich.ari.net>; from Rich Fox on Wed, Mar 17, 1999 at 09:08:32PM -0500 References: <4.1.19990317173322.00918930@mail-r> <Pine.NEB.3.96.990317210046.20959N-100000@ppp-rich.ari.net>
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On Wed, Mar 17, 1999 at 09:08:32PM -0500, Rich Fox wrote:
> Hi,
>
> Just a shot:
> If I remember correctly, Redhat has a multi-tier system that enables and
> disables programs depending on where you are in the boot process, (or
> where you want to be), hence runlevels. You can use this as a way to
> control everything that is going on with your box. It's one of the
> reasons, that when I tried FreeBSD for the first time, and it had a single
> 'runlevel' (or at least it booted into what I considered the final state
> of the operating system), I found it much easier to work with as a newbie.
>
> I consider it [various runlevels] kinda neat, but at the time when I was
> learning, it was an unnecessary level of complication, (no pun intended).
> I hope to be working with Redhat again soon, although, I am still quite
> loyal to, and will stick with for my primary systems, FreeBSD :)
In general, you're correct in your description of runlevels, though they
are not exclusive to Linux. They are used on SysV-based UNIX's, such as
Solaris, USL Unix, and many others...
BSD-based systems do not use this concept of runlevels. Instead, we have
the scripts (/etc/rc*) run during the boot process.
However, FreeBSD 3.1 and later seems to prefer using the scripts in
/usr/local/etc/rc.d in a fashion very similar to SysV-type runlevels.
Only main difference is there is still no concept of an actual *runlevel*.
--
Michael Maxwell <drwho @ xnet.com> | http://www.xnet.com/~drwho/
"American Justice: oxymoron. William J. Clinton: moron."
--M. Maxwell (1999)
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