at runtime and to support distributing additional kernels:
o remove kernel from the base tarball
o add new kernel tarballs
o build + package both SMP and GENERIC kernels when an <arch>/conf/SMP
config file is present
o add sysinstall support for multiple kernels
o update sysinstall to probe for the number of cpus on a system
and auto-select smp/up kernel accordingly
o add a post-kernels install hook to fixup /boot/kernel
o add -ldevinfo to boot crunch for sysinstall's cpu probing logic
Notes:
1. On HEAD this code is not currently used because GENERIC kernels
include SMP. This work is mainly intended for RELENG_6 where the
GENERIC kernel is UP. If HEAD changes to match then just enable
WITH_SMP in sysinstall/Makefile.
2. The cpu probing support is done with acpi and MPTable; this means
some systems will require work for auto-detection to work.
3. The handling of /boot/kernel may need to be revisited; for now
we rename one kernel at the last moment (SMP if installed, otherwise
GENERIC). There are other, possibly better, approaches.
Lots of help from ru, emaste, scottl, and jhb.
*BANG* *BANG* *BANG* *BANG* *BANG* *BANG* *CLICK* *CLICK* *CLICK*
Death to the stripped down BOOTMFS kernel for boot floppies and all the
cruft that goes along with it.
Also make sure bsdlabel(8) (along with the disklabel(8) compat
link) still appear on the fixit floppies of platforms that use
it natively (alpha, i386, and pc98).
Approved by: re (scottl)
floppies.
kern-small.flp and mfsroot-small.flp are for old machines that don't
support 1.44MB floppy. These floppies don't have pci related devices.
kern.flp and mfsroot.flp are normal 1.44MB floppy images.
into the install kernel. Unfortunately pcn(4) also needs mii(4) so that
would also have to added to install kernel, which will bloat it up so that it
doesn't fit on the floppy any more. Turns out we grew a lnc(4) module since
I last looked. So handle it as a kld loadable module during install rather
than have it statically compiled into the kernel.
lnc(4) will attach to AMD PCnet/FAST NICs if pcn(4) does not attach.
I.e. pcn(4) gets first chance. There is a problem however in that pcn(4)
was moved out of the install kernel so that the module would be used.
This however causes bad installs if one has an AMD PCnet/FAST NIC.
release/${TARGET}/drivers.conf file which list drivers that have to
go into the third floppy.
Also shuffle i386/drivers.conf so that the floppies don't overflow
anymore. Anybody with real/better usage statistics is welcome to
shuffle it differently.
Reviewed by: ru
