The GRUB package contains the GRand Unified Bootloader.
This package is known to have issues when its default optimization flags (including the -march and -mcpu options) are changed. If any environment variables that override default optimizations have been defined, such as CFLAGS and CXXFLAGS, unset them when building GRUB.
Start by applying the following patch to allow for better drive detection, fix some GCC 4.x issues, and provide better SATA support for some disk controllers:
patch -Np1 -i ../grub-0.97-disk_geometry-1.patch
Prepare GRUB for compilation:
./configure --prefix=/usr
Compile the package:
make
To test the results, issue: make check.
Install the package:
make install mkdir -v /boot/grub cp -v /usr/lib/grub/i386-pc/stage{1,2} /boot/grub
Replace i386-pc with whatever directory is appropriate for the hardware in use.
The i386-pc directory contains a number of *stage1_5 files, different ones for different file systems. Review the files available and copy the appropriate ones to the /boot/grub directory. Most users will copy the e2fs_stage1_5 and/or reiserfs_stage1_5 files.