svn commit: r278447 - projects/release-pkg/release/packages/kernel

[Baptiste Daroussin]

On Mon, Feb 09, 2015 at 11:07:19AM -0500, John Baldwin wrote:
> On Monday, February 09, 2015 10:25:59 AM Baptiste Daroussin wrote:
> > Author: bapt
> > Date: Mon Feb  9 10:25:58 2015
> > New Revision: 278447
> > URL: https://svnweb.freebsd.org/changeset/base/278447
> > 
> > Log:
> >   Rerunning kldxref after installing the kernel is still needed as
> > rc.d/kldxref will happen too late
> > 
> > Added:
> >   projects/release-pkg/release/packages/kernel/post-install
> >      - copied unchanged from r278395,
> > projects/release-pkg/release/packages/kernel/post-install
> > 
> > Copied: projects/release-pkg/release/packages/kernel/post-install (from
> > r278395, projects/release-pkg/release/packages/kernel/post-install)
> > ===========================================================================
> > === --- /dev/null	00:00:00 1970	(empty, because file is newly added)
> > +++ projects/release-pkg/release/packages/kernel/post-install	Mon Feb  9
> > 10:25:58 2015	(r278447, copy of r278395,
> > projects/release-pkg/release/packages/kernel/post-install) @@ -0,0 +1 @@
> > +/usr/sbin/kldxref /boot/kernel
> 
> Hmm, are you hardcoding /boot/kernel as the location for kernels?  I like to 
> keep an up-to-date GENERIC on all my boxes at /boot/kernel.GENERIC along with 
> /boot/kernel which runs the machine's "custom" config.  I do think I like that 
> the packages default to /boot/kernel in general (so I can 'pkg install kernel-
> <CONF>' to pick a specific conf), but it might be nice to be able to install a 
> fallback kernel under an alternate name.

We are at very early state of packaging but yes before it becomes official it
will allow to have custom location for the kernel (chosen at build time)
> 
> Also, do you have a graceful way of switching configs?  That is, if kernel-FOO 
> is installed at /boot/kernel and I want to switch to kernel-BAR, do you just 
> have to delete FOO and install BAR?  That's fine if so, though there is a 
> window where you don't have a kernel if you crash / power-failure. :-P  Not 
> sure how easy it would be to be able to move the FOO kernel to kernel.old in 
> that case and install BAR as /boot/kernel?
Nothing planned for that so far, I'm open for suggestions, nothing is done in
pkg yet to allow to move a directory with its content before actually upgrading.

IMHO that would be a bad idea to have kernel specific hacks, but it sounds a
good idea to first anyway create the kernel.old directory. Still don't know how
to do that.
> 
> On a related note, I assume that for base packages you will keep the behavior 
> of preserving /boot/loader.old and /libexec/ld-elf.so.1.old each time the 
> respective file changes?  (I think those are the only files in userland with 
> that kind of special magic.)

I haven't thought about those, but it is easy to make I'll modity pkg(8) to
allow such behaviour.

Best regards,
Bapt

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