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* Also revert GRUB 2 core.img to vanilla 2.06, with the hope that GRUB will *ACTUALLY* bother to release in 2023 and we will be able to update to GRUB 2.12 (or whatever non-sequential version they decide to go with) to say a most welcome goodbye to this whole 2.06 incompatibility crap!
24 lines
1.1 KiB
Text
24 lines
1.1 KiB
Text
This directory contains the Grub 2.0 boot records that are used by Rufus
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* boot.img and core.img were created from:
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https://ftp.gnu.org/gnu/grub/grub-2.06.tar.xz
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on a Debian 10.9 x64 system using the commands:
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./autogen.sh
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# --enable-boot-time for Manjaro Linux
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./configure --disable-nls --enable-boot-time
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make -j4
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cd grub-core
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../grub-mkimage -v -O i386-pc -d. -p\(hd0,msdos1\)/boot/grub biosdisk fat exfat ext2 ntfs ntfscomp part_msdos -o core.img
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* boot.img has been modified to nop the jump @ 0x66 as per grub2's setup.c comments:
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/* If DEST_DRIVE is a hard disk, enable the workaround, which is
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for buggy BIOSes which don't pass boot drive correctly. Instead,
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they pass 0x00 or 0x01 even when booted from 0x80. */
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* Note that, for convenience reasons, the content of boot.img is *not* the one that
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Rufus processes when writing the MBR.
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Instead, the byte array from src/ms-sys/inc/mbr_grub2.h (whose content is identical)
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is what Rufus uses. If you modify these files, be mindful that you may also need
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to update the array in mbr_grub2.h.
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* For details, see src/format.c, src/msys/br.c and src/msys/inc/mbr_grub2.h. |