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Date: Fri, 25 Apr 2014 14:58:34 -0700
From: Nathan Whitehorn <nwhitehorn@freebsd.org>
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To: Glen Barber <gjb@freebsd.org>
Subject: Re: svn commit: r264935 - head/release/amd64
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On 04/25/14 14:52, Glen Barber wrote:
> On Fri, Apr 25, 2014 at 02:46:46PM -0700, Nathan Whitehorn wrote:
>> I appreciate the caution. Thanks for the clarification! I'm planning to get
>> EFI support into the installer this weekend.
> Speaking of the installer...
>
> How difficult would it be to be able to select a kernel for installation
> if more than one kernel.${foo}.txz is provided on the install medium?
>
> The use case I have in mind is where kernel.VT.txz is extracted to
> /boot/kernel.VT (which I believe the loader menu already supports
> multi-kernel), an alternate kernel can be chosen for booting and then
> can subsequently be chosen as the installed kernel during the extract
> phase.
>
> This would actually cut down quite a bit on snapshot build times, since
> right now I have to do a separate build for each kernel.
>
> Thoughts?
>
> Glen
>

Not that hard. If you want to just add extra optional kernels, the 
installer doesn't even need any patches -- you just have to add it to 
the make release logic (and MANIFEST) as an extra tarball. Installing it 
to /boot/kernel would require removing the logic in 
bsdinstall/scripts/auto that removes "kernel" from the menu as a 
nonoptional package.
-Nathan