NOTE ANY CHANGES YOU MAKE TO THE BOOTBLOCKS HERE. The format of this
file is important - make sure the entries are appended on end, last item
is taken as the current.
2.0: Change over to Matthias Drochner's two-stage boot system.
All code is completely new.
2.1: New welcoming banner.
2.2: Use common menu / parsing functions with other bootloaders.
New framework to pass information to the kernel.
2.3: Switch to new NetBSD MBR partition ID.
2.4: Support BIOS Int13-Extensions.
2.5: Support ustarfs boot.
2.6: Support ELF boot.
2.7: Support on-the-fly switching of console devices.
2.8: Support verbose/quiet boot.
2.9: Recognize PS/2 L40 at runtime and use appropriate gate A20
initialization (rather than using a compile flag).
Recognize ESDI disks and identify them as ed(4) for COMPAT_OLDBOOT.
2.10: g/c COMPAT_OLDBOOT.
2.11: loadfile() update: ELF symbols no longer need backward seeks.
2.12: loadfile() update to avoid backwards seeks for ELF Program Headers.
2.13: Support boot from 1.44MB floppies in 2.88MB floppy drives.
2.14: Add a quirk for BIOSes which report extended memory size
in slightly nonstandard way in int15, function 0xE801.
2.15: Use int15/0xc7 to get memory information on machines which support
it, like later IBM PS/2 machines.
2.16: Move 16bit %ss to allow >64k for code, data and stack.
Default partition to that passed in by mbr code.
Support limited filename globbing in 'ls' command.
Use .code16 and .code32 directives
3.0: Separate out into bootxx and boot
3.1: Rename to /usr/mdec/boot.
Leave space in bootxx for FAT32 BPB and MBR partition table.
Keep MBR's existing BPB and partition table when installing bootxx.
3.2: Add support for passing boot wedge information to the kernel.
3.3: Add support for cd9660 file system.
5.0: Support for boot menu, modules.
5.1: Change boot messages to replace build date with kernel version.
5.2: Support for multiboot.
5.3: Autoload kernel module for root file system.
5.4: The VESA VBE mode number is now passed to the kernel so it can be
restored on ACPI resume.
5.5: Adjust stack and heap areas to not overlap.
5.6: GUID Partition Table support.
5.7: Recognize 64-bit LBA from bootxx.
5.8: Support for splash images.
5.9: VESA VBE/DDC EDID support.
5.10: Support for using raw file-system images as memory disks.
5.11: Support for booting KASLR amd64 kernels.
5.12: Support for partition labels, recursive labels inside RAID partitions,
booting a directory with kernel and modules, MultiBoot 2, not using
the default menu options from prompt "boot" command, new "root"
command that changes default root, bi-endian support in disklabel,
RAID and UFS, fixes for buggy ACPI implementations, and ASCII art.
