wiki:Building/Grub

Version 1 (modified by Roxana, on Jun 10, 2009 at 7:20:27 AM) (diff)

New page: The following instructions built the image and were run on a Fedora Core 5 Linux host. Download the latest release of version 2 the Grub boot loader from...

Building Grub

The following instructions built the image and were run on a Fedora Core 5 Linux host.

Download the latest release of version 2 the Grub boot loader from ftp://alpha.gnu.org/gnu/grub/. Build the package with the following configure command:

$ ../grub-1.94/configure --prefix=/tmp/g2/build $ make all install

where the prefix can be anything suitable for your machine. If configure fails with a missing LZO library check you have the lzo-devel package installed.

To make the floppy image follow the instructions in the Grub Wiki at http://grub.enbug.org/TestingOnX86. This script is adapted from the instructions:

#! /bin/sh -x grub=/tmp/g2/build workspace=/tmp/g2 mnt=$workspace/mnt/loop file=$workspace/rtems-boot.img export PATH=$grub/bin:$grub/sbin:$PATH mkdir -p $workspace cd $workspace grub-mkimage -o core.img _chain ls pc multiboot gpt fat boot reboot configfile cat help dd if=/dev/zero of=$file bs=512 count=2880 /sbin/mkdosfs $file mkdir -p $mnt mount -o loop -t vfat $file $mnt mkdir -p $mnt/boot/grub cp $grub/lib/grub/i386-pc/boot.img core.img $grub/lib/grub/i386-pc/*.mod $mnt/boot/grub echo "configfile (hd0,0)/rtems-grub.cfg" > $mnt/boot/grub/grub.cfg echo '(fd0)' $file > tmp_device.map grub-setup -d $mnt/boot/grub -r '(fd0)' -m tmp_device.map '(fd0)' rm -f tmp_device.map umount $mnt