Date: Wed, 24 Jul 2002 09:34:11 -0400 From: "Brian T. Schellenberger" <bts@babbleon.org> To: Jamie Bowden <ragnar@sysabend.org>, Jonathan Chen <jonc@chen.org.nz> Cc: Barney Wolff <barney@tp.databus.com>, freebsd-stable@FreeBSD.ORG Subject: Re: make world considered harmful Message-ID: <200207240934.11857.bts@babbleon.org> In-Reply-To: <Pine.BSF.4.10.10207240357180.47292-100000@moo.sysabend.org> References: <Pine.BSF.4.10.10207240357180.47292-100000@moo.sysabend.org>
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On Wednesday 24 July 2002 07:01 am, Jamie Bowden wrote:
| On Wed, 24 Jul 2002, Jonathan Chen wrote:
| :On Tue, Jul 23, 2002 at 03:49:04AM -0700, Jamie Bowden wrote:
| :> On Mon, 22 Jul 2002, Barney Wolff wrote:
| :> :But there's nothing right with it, either. Is the demonstrated risk
| :> :of people using it inappropriately really worth not having to type
| :> : make buildworld && make installworld
| :> :in the few cases where it's safe? I claim not.
| :>
| :> # $FreeBSD: src/Makefile,v 1.234.2.14 2002/07/16 18:36:19 ru Exp $
| :> #
| :> # The user-driven targets are:
| :> #
| :> # buildworld - Rebuild *everything*, including glue to help do
| :> # upgrades.
| :> # installworld - Install everything built by "buildworld".
| :> # world - buildworld + installworld.
| :>
| :> Perhaps I'm missing something, but 'make world' appears to do nothing
| :> more than you've done above in fewer keystrokes.
| :
| :Except for the fact that if the new kernel doesn't like your system,
| :you're SOL with out-of-sync userland.
|
| And this is different than 'make buildworld && make installworld' in what
| way exactly? If the inline Makefile documentation is correct, which I've
| assumed it is, then there is no functional difference.
True. None whatsoever.
However, both are (somewhat) dangerous. Better is to
make buildworld
make kernel
reboot
[see if the kernel is sane before . . .]
make installworld
mergemaster
That way if the new kernel is bad, you still have time to repair it with your
old, known-to-be-working world. If you do the whole world at once and it's
bad, you are looking at re-installing from scratch.
The point of removing the target is that it removes part of the temptation to
so endanger yourself.
Personally, I think it would be better to remove it; for those who dislike
typing and don't mind endangering their system, it would be better to have
instead a
make universe
or something that does the whole sequence (albiet without rebooting):
make buildworld + make kernel + make installworld + mergemaster
I have the impression from some posts that there are some who (mistakenly)
believe that make world does pretty much this same thing, which is another
strike against it.
--
Brian, the man from Babble-On . . . . bts@babbleon.org (personal)
http://www.babbleon.org
http://www.eff.org http://www.programming-freedom.org
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