On Wed, Feb 22 2006, Greg KH wrote:
> On Wed, Feb 22, 2006 at 08:29:48PM +0100, Arjan van de Ven wrote:
> > On Wed, 2006-02-22 at 11:18 -0800, Greg KH wrote:
> > > What about trying a stock 2.6.6 or so kernel? Does that work
> > > differently from 2.6.15?
> >
> > ... however it's very much designed only for the kernel that comes with
> > it (with "it's" I mean all the userspace infrastructure); all the
> > changes and additions since 2.6.9 aren't incorporated so you probably
> > really want new alsa, new initscripts, new mkinitrd, new
> > module-init-tools. some because of abi changes since 2.6.9, others
> > because the kernel grew capabilities that are really needed for "nice"
> > behavior.
>
> I totally agree. Distros are changing into two different groups these
> days:
> - everything tied together and intregrated nicely for a specific
> kernel version, userspace tool versions, etc.
> - flexible and works with multiple kernel versions, different
> userspace tools, etc.
>
> Distros in the first category are the "enterprise" releases (RHEL, SLES,
> etc.), as well as some consumer oriented distros (SuSE, Ubuntu, Fedora
> possibly.)
>
> More flexible distros that handle different kernel versions are Gentoo,
> Debian, and probably Fedora.
>
> And this is a natural progression as people try to provide a more
> complete "solution" for users.
>
> When people to complain that they can't run a "kernel-of-the-day" on
> their "enterprise" distro, they are not realizing that that distro was
> just not developed to support that kind of thing at all.
I have to disagree somewhat violently to that statement, I'm afraid :-)
At least for me, it's pretty much a requirement that I can put eg
2.6.18-rc2 on an enterprise install. It's a must to debug problems -
both ways, actually, testing both a new rc kernel on that enterprise
distro but also putting a vanilla kernel on the enterprise distro to
test something that fails with the distro kernel.
I'd absolutely hate if we got into a situation where you couldn't just
put a new vanilla kernel on SLESx. Calling it a complete solution to
just sounds like an excuse for breaking things that we don't have to.
Please lets not make things so fragile!
> So, in short, if you are going to do kernel development, pick a distro
> that handles different kernel versions. Likewise, if you are doing
> userspace development (X.org, HAL, KDE, Gnome, etc.) you pick a distro
> that allows you to change that level of the stack.
Everything doesn't fit into those two boxes.
--
Jens Axboe
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