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Eric Snowberg 927267be58 sparc64: Add bios boot partition support
Add BIOS Boot Partition support for sparc64 platforms.  This will work a
little different than x86.  With GPT, both the OBP "load" and "boot" commands
are partition aware and neither command can see the partition table.  Therefore
the entire boot-loader is stored within the BIOS Boot Partition and nothing
is stored within the bootstrap code area of MBR.

To use it, the end user will issue the boot command with the path pointing to
the BIOS Boot Partition.

For example with the disk below:

Model: Unknown (unknown)
Disk /dev/nvme1n1: 1600GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number  Start   End     Size    File system  Name  Flags
1      1049kB  1075MB  1074MB   ext3
2      1075MB  1076MB  1049kB                     bios_grub
3      1076MB  1600GB  1599GB                     lvm

To boot grub2 from OBP, you would use:

boot /pci@302/pci@1/pci@0/pci@13/nvme@0/disk@1:b

Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-09-21 16:44:29 -04:00
asm-tests asm-tests/i386-pc: Check that movl is 5 bytes. 2016-09-28 20:31:04 +03:00
conf gnulib: Upgrade Gnulib and switch to bootstrap tool 2020-09-21 16:44:29 -04:00
docs gnulib: Upgrade Gnulib and switch to bootstrap tool 2020-09-21 16:44:29 -04:00
grub-core ieee1275: obdisk driver 2020-09-21 16:44:29 -04:00
include ieee1275: obdisk driver 2020-09-21 16:44:29 -04:00
po gnulib: Upgrade Gnulib and switch to bootstrap tool 2020-09-21 16:44:29 -04:00
tests syslinux: Fix syslinux_test in out-of-tree builds 2020-09-21 16:43:55 -04:00
themes/starfield Starfield theme. 2012-02-23 17:21:38 +01:00
unicode * unicode: Import Unicode 6.0 data. 2011-12-25 16:17:25 +01:00
util sparc64: Add bios boot partition support 2020-09-21 16:44:29 -04:00
.gitignore gnulib: Upgrade Gnulib and switch to bootstrap tool 2020-09-21 16:44:29 -04:00
.travis.yml travis: Add Travis CI config file 2020-09-21 16:43:55 -04:00
AUTHORS 2005-09-03 Yoshinori K. Okuji <okuji@enbug.org> 2005-09-03 16:54:27 +00:00
BUGS * BUGS: New file. 2011-01-11 00:06:01 +01:00
COPYING 2007-07-22 Yoshinori K. Okuji <okuji@enbug.org> 2007-07-21 23:32:33 +00:00
ChangeLog-2015 Autogenerate ChangeLog from git changelog. 2015-01-24 17:29:50 +01:00
INSTALL gnulib: Upgrade Gnulib and switch to bootstrap tool 2020-09-21 16:44:29 -04:00
Makefile.am Makefile: Allow to set file systems modules for default_payload.elf 2020-09-21 16:44:29 -04:00
Makefile.util.def gnulib: Upgrade Gnulib and switch to bootstrap tool 2020-09-21 16:44:29 -04:00
NEWS NEWS updates 2016-11-22 20:51:54 +03:00
README README: Remove dead link to the wiki 2015-11-06 04:31:23 +01:00
THANKS 2009-12-11 Robert Millan <rmh.grub@aybabtu.com> 2009-12-11 22:44:47 +00:00
TODO TODO: Remove obsolete link 2016-02-12 17:51:52 +01:00
acinclude.m4 Fix -nopie/-nopie check. 2017-01-30 19:38:55 +01:00
autogen.sh gnulib: Upgrade Gnulib and switch to bootstrap tool 2020-09-21 16:44:29 -04:00
bootstrap gnulib: Upgrade Gnulib and switch to bootstrap tool 2020-09-21 16:44:29 -04:00
bootstrap.conf gnulib: Upgrade Gnulib and switch to bootstrap tool 2020-09-21 16:44:29 -04:00
config.h.in Remove libgcc dependency. 2015-03-03 20:50:37 +01:00
configure.ac gnulib: Upgrade Gnulib and switch to bootstrap tool 2020-09-21 16:44:29 -04:00
coreboot.cfg * coreboot.cfg: Add missing file. 2013-11-20 00:52:23 +01:00
geninit.sh automake commit without merge history 2010-05-06 11:34:04 +05:30
gentpl.py RISC-V: Add to build system 2020-09-21 16:43:54 -04:00
linguas.sh linguas: Don't skip ko.po. 2017-02-04 00:06:57 +01:00

README

This is GRUB 2, the second version of the GRand Unified Bootloader.
GRUB 2 is rewritten from scratch to make GNU GRUB cleaner, safer, more
robust, more powerful, and more portable.

See the file NEWS for a description of recent changes to GRUB 2.

See the file INSTALL for instructions on how to build and install the
GRUB 2 data and program files.

Please visit the official web page of GRUB 2, for more information.
The URL is <http://www.gnu.org/software/grub/grub.html>.

More extensive documentation is available in the Info manual,
accessible using 'info grub' after building and installing GRUB 2.

There are a number of important user-visible differences from the
first version of GRUB, now known as GRUB Legacy. For a summary, please
see:

  info grub Introduction 'Changes from GRUB Legacy'