Talk:GRUB2 - Revision history

Uwe at 14:35, 26 September 2010

2010-09-26T14:35:13Z

Uwe at 18:34, 24 September 2010

2010-09-24T18:34:57Z

RobertMillan: links for NetBSD & Solaris

2008-09-09T18:58:16Z

links for NetBSD & Solaris

Hailfinger: /* Status */

2008-09-09T18:03:39Z

‎Status

RobertMillan: add proposed GRUB2 replacement in the Talk page

2008-09-09T17:35:18Z

add proposed GRUB2 replacement in the Talk page

PatrickGeorgi: fixed controversy

2008-08-06T19:07:04Z

fixed controversy

PatrickGeorgi: New page: History section's phrasing is controversial. Let's see if we can get this sorted out. == History == Patrick Georgi has been working on GRUB2 for coreboot during th...

2008-08-03T14:56:33Z

New page: History section's phrasing is controversial. Let's see if we can get this sorted out. == History == Patrick Georgi has been working on GRUB2 for coreboot during th...

New page

History section's phrasing is controversial. Let's see if we can get this sorted out.

== History ==

[[User:PatrickGeorgi|Patrick Georgi]] has been working on GRUB2 for coreboot during the Google Summer of Code 2007. He made an [http://coreboot.org/~oxygene/lbgrub2-20070820-1.tar.bz2 original code submission] on August 20th 2007. If you care, there is [http://coreboot.org/~oxygene/lbgrub2-instructions.txt documentation on how to use it], but that work is based on a very old version of GRUB2.

For various reasons, Robert Millan of the GRUB project did another original implementation, which got merged, so we moved our effort to their new code base and continued from there.

@@ Line 4: / Line 4: @@
 * The mainline version of GRUB2 supports coreboot, and has a [http://grub.enbug.org/CoreBoot wiki page on the coreboot port].
-* A derivative version of GRUB2, specially targetted at use with coreboot, is available in our [[Monotone Repository|monotone repository]].  It includes additional features not yet present in official GRUB, such as USB or Crypto support. Note, however, that this branch has been declared stable and is no longer under heavy development.
+* A derivative version of GRUB2, specially targetted at use with coreboot, is available in our monotone repository (Update: no longer available).  It includes additional features not yet present in official GRUB, such as USB or Crypto support. Note, however, that this branch has been declared stable and is no longer under heavy development.
 == How to build GRUB2 as a payload ==

@@ Line 28: / Line 28: @@
 *serial: Driver for serial terminal.
 *memdisk: Allows you to embed a virtual disk into the GRUB image (see below)
-*multiboot: Loader for Multiboot kernels (such as the kernel of [[Coreboot and NetBSD|NetBSD]] or [http://www.sun.com/software/solaris/ Solaris])
+*multiboot: Loader for Multiboot kernels (such as the kernel of [[NetBSD]] or [http://www.sun.com/software/solaris/ Solaris])
 *linux: Loader for [http://www.kernel.org/ Linux] bzImages.
 *boot: Needed by all loaders.

@@ Line 28: / Line 28: @@
 *serial: Driver for serial terminal.
 *memdisk: Allows you to embed a virtual disk into the GRUB image (see below)
-*multiboot: Loader for Multiboot kernels (such as the kernel of [Coreboot and NetBSD|NetBSD] or Solaris)
+*multiboot: Loader for Multiboot kernels (such as the kernel of [[Coreboot and NetBSD|NetBSD]] or [http://www.sun.com/software/solaris/ Solaris])
 *linux: Loader for [http://www.kernel.org/ Linux] bzImages.
 *boot: Needed by all loaders.

@@ Line 4: / Line 4: @@
 * The mainline version of GRUB2 supports coreboot, and has a [http://grub.enbug.org/CoreBoot wiki page on the coreboot port].
-* A derivative version of GRUB2, specially targetted at use with coreboot, is available in our [[Monotone Repository|monotone repository]].  It includes additional features not yet present in official GRUB, such as USB or Crypto support. Note, however, that this branch has been abandoned and is no longer under development.
+* A derivative version of GRUB2, specially targetted at use with coreboot, is available in our [[Monotone Repository|monotone repository]].  It includes additional features not yet present in official GRUB, such as USB or Crypto support. Note, however, that this branch has been declared stable and is no longer under heavy development.
 == How to build GRUB2 as a payload ==

← Older revision	Revision as of 17:35, 9 September 2008
Line 1:	Line 1:
	+	'''[http://www.gnu.org/software/grub/ GRUB2]''' is a modular, multiboot-capable bootloader for many operating systems that can be used as a payload for coreboot.

	+	== Status ==
	+
	+	* The mainline version of GRUB2 supports coreboot, and has a [http://grub.enbug.org/CoreBoot wiki page on the coreboot port].
	+	* A derivative version of GRUB2, specially targetted at use with coreboot, is available in our [[Monotone Repository\|monotone repository]]. It includes additional features not yet present in official GRUB, such as USB or Crypto support. Note, however, that this branch has been abandoned and is no longer under development.
	+
	+	== How to build GRUB2 as a payload ==
	+
	+	It's recommended that you use the latest [https://savannah.gnu.org/svn/?group=grub SVN version of GRUB], since coreboot support is being actively developed and evolves rapidly.
	+
	+	$ svn co svn://svn.savannah.gnu.org/grub/trunk/grub2
	+	$ ./autogen.sh
	+	$ ./configure --with-platform=coreboot
	+	$ make
	+	$ ./grub-mkimage -d . $modules -o ..../coreboot-v3/payload.elf --prefix='(ata0)/boot/grub'
	+
	+	See below about module selection.
	+
	+	== GRUB2 modules ==
	+
	+	GRUB2 is a modular system, you can include whichever modules you need into the image. A few noteworthy ones are:
	+
	+	*normal, ls, cat, help: These make the user interface more complete/usable.
	+	*ext2, iso9660, reiserfs, xfs, fat: Commonly used filesystems.
	+	*pc, gpt: Commonly used partition maps.
	+	*ata: Driver for ATA / ATAPI disks.
	+	*serial: Driver for serial terminal.
	+	*memdisk: Allows you to embed a virtual disk into the GRUB image (see below)
	+	*multiboot: Loader for Multiboot kernels (such as the kernel of [Coreboot and NetBSD\|NetBSD] or Solaris)
	+	*linux: Loader for [http://www.kernel.org/ Linux] bzImages.
	+	*boot: Needed by all loaders.
	+
	+	You might also want to check the [http://grub.enbug.org/CommandList full list of available modules in GRUB2].
	+
	+	=== Building a memdisk image ===
	+
	+	Build your memory disk using your preferred filesystem. For example, tar. Then load the memdisk module, and include the image in your build.
	+
	+	$ tar -cf memdisk.tar my-dir
	+	$ grub-mkimage .... memdisk cpio -m memdisk.tar
	+
	+	GRUB will automaticaly use the the memdisk for finding modules and the grub.cfg file.
	+
	+	== Hints and Tricks ==
	+
	+	=== Loading grub.cfg from disk ===
	+
	+	It is suggested that grub.cfg is contained in a memdisk/tar image. This grub.cfg can be used to load other configuration files from any mass storage media. If you want to load a grub.cfg from the first device that contains one, your in-flash grub.cfg can look like this:
	+
	+	search -f -s /grub.cfg
	+	configfile /grub.cfg
	+
	+	== To Do ==
	+
	+	* [http://grub.enbug.org/USBSupport USB stack integration] (in progress).
	+
	+	== How to help? ==
	+
	+	Contact the GRUB upstream [mailto:grub-devel@gnu.org mailing list] for more information.

← Older revision		Revision as of 19:07, 6 August 2008
Line 1:		Line 1:
−	~~History section's phrasing is controversial. Let's see if we can get this sorted out.~~

−	~~== History ==~~
−
−	[[User:PatrickGeorgi\|Patrick Georgi]] has been working on GRUB2 for coreboot during the Google Summer of Code 2007. He made an [http://coreboot.org/~oxygene/lbgrub2-20070820-1.tar.bz2 original code submission] on August 20th 2007. If you care, there is [http://coreboot.org/~oxygene/lbgrub2-instructions.txt documentation on how to use it], but that work is based on a very old version of GRUB2.
−
−	~~For various reasons, Robert Millan of the GRUB project did another original implementation, which got merged, so we moved our effort to their new code base and continued from there.~~