Add GRUB2 to handle multiple architectures

[Jeremy Huntwork]

Trunk can now build three different architectures (minus the kernel):

• x86
• x86_64 (64-bit only)
• powerpc

GRUB2 will handles all of the above.

[Julio Meca Hansen]

Do we need for each possible bootloader to be compatible with every possible filesystem chosen by the user?

I mean... in the book we create an ext3 filesystem, and if we're gonna put some alternative bootloaders to grub, we could mention extlinux, from the syslinux package, supposedly works very well with ext2/3 filesystems (although I haven't tested it yet, but could be doing so)

So are we going to define a series of requisites or pre-requisites for bootloaders to be mentioned or the list can be wide in that sense?

Julio

[Jeremy Huntwork]

Filesystems aren't the issue (especially now that grub has been patched). The point is that various architectures need various bootloaders. Also note that this ticket isn't specifically for trunk, but for the jh branch, an experimental book.

[alexander@…]

Bad news: ​http://bugs.debian.org/479607 (affects LILO loading big initramfs with linux-2.6.25). According to the Debian maintainer, this bug makes LILO unsuitable for inclusion into Debian. LFS should retest the bug and possibly take this into account.

[Jeremy Huntwork]

Marking this as highest priority because as the instructions currently stand, if someone tries to build for x86_64, grub will fail and there will be no working bootloader.

[willimm]

Debian has solved the big-intramfs lilo issue.

[bdubbs@…]

See #1955 (marked as duplicate to this ticket) for further discussion.

[bdubbs@…]

Promoting to 6.6 and changing the description.