remove redundant kernels and floppies from the space-starved i386 ISO

Reduce the size of the i386 ISO to help it fit on a CD-ROM

Exclude tests and html man pages.

branches: 1.10.8;
Consistently use ${RELEASEDIR}/${RELEASEMACHINE} instead of
${RELEASEDIR}/${MACHINE} (Paul Ripke)

Now that we do not force debug sets off install CDs any more, explicitly
set CDRELEASE_NODEBUG everywhere.

branches: 1.8.48; 1.8.50;
Oops, fix the build.

Put sysinst onto the boot CDs, too.

Switch the i386 installation CDs away from RAM disks and instead use the
CD-ROM as the root file system. It contains a limited subset of $DESTDIR
along with sysinst. This will help to massively reduce the amount of memory
needed to install from CD or netboot, and allow us to continue using the
generic kernel on the CDs.

Put the GENERIC kernel onto i386 installation CDs and load a kernel module
from the boot loader to provide the miniroot.

branches: 1.4.4; 1.4.8; 1.4.10;
Add boot menu and welcome banner to installation CD allowing the user to
choose between the normal and non-ACPI kernel.

branches: 1.3.4;
Use nblaptop and nbnoacpi for the alternative kernel names; as suggected by
Alan Barrett. While there factor out the kernels in Makefile.cdrom.

Use the new common/Makefile.bootcd to make i386 and amd64 bootable ISO
images. amd64 gets a single kernel; i386 images gets 3 kernels:
- netbsd, copy from netbsd-INSTALL_LARGE.gz, loaded by default
- nbsd-l, copy from netbsd-INSTALL_LAPTOP.gz
- nbsd-i, copy from netbsd-INSTALL.gz for those who want the traditionnal
non-ACPI kernel
- drop the bootcd-laptop image
both gets an installcd image, which is the same as bootcd but with the
binary sets in addition to kernels.

branches: 1.1.2;
Add example on how to make an install CD - it's the same
as the bootcd* CDs just with the install sets added to
the CD as well.

XXX 1) The implementation of this is rather cludgy (copying sets around),
as our makefs(8) can't put files from multiple directories into
one image -- something that mkisofs can do with 'graft' points
XXX 2) This should be run after 'build.sh release' - It would be nice
if we had a seperate stage to add such hooks in our build framework

Express more confidence in our ability to boot on hardware with ACPI
enabled and don't warn our users that it might not and already suggest
workarounds.

The ability to disable ACPI and SMP is still there, by dropping to
the boot prompt.

branches: 1.8.48;
www.netbsd.org -> www.NetBSD.org

Tweak the install messages.

Switch the i386 installation CDs away from RAM disks and instead use the
CD-ROM as the root file system. It contains a limited subset of $DESTDIR
along with sysinst. This will help to massively reduce the amount of memory
needed to install from CD or netboot, and allow us to continue using the
generic kernel on the CDs.

Don't specify "load=/miniroot.kmod" by default in boot.cfg on bootcds.
Instead, specify "load /miniroot.kmod" per each boot menu
so that we can use bootcds to load any specific kernel in
other devices which doesn't need ramdisk miniroot.

Tested on qemu.

Bump the timeout to 30s, it takes longer to read and digest the information
esp. if you have not seen it before.

Put the GENERIC kernel onto i386 installation CDs and load a kernel module
from the boot loader to provide the miniroot.

For PR kern/38537:

- Make MULTIPROCESSOR mandatory on i386.

Installation changes:

- Update installation section of release notes to match reality.
- Rename INSTALL to INSTALL_FLOPPY, retire INSTALL_LARGE.
- Build INSTALL kernel from GENERIC, like on amd64.
- Update boot menu to allow disabling ACPI and/or SMP.
- Remove GENERIC.NOACPI from the installed kernel list.
- TODO: install default boot.cfg in etc.tgz.
- TODO: possibly enable PCI fixup stuff at runtime if ACPI is disabled.

Build changes:

- No longer build ALL, it's for verification, is slow to build and the
build process is already crippled by the number of kernels built.
- No longer build GENERIC.NOACPI.

branches: 1.1.4; 1.1.6; 1.1.10; 1.1.12;
Add boot menu and welcome banner to installation CD allowing the user to
choose between the normal and non-ACPI kernel.