| # Sample for i386 to create a 6MB disk-image |
| |
| # create an image file |
| dd if=/dev/zero bs=512 count=$((6*1024*1024/512)) of=img |
| # create a partition (optional) |
| echo -e "n\np\n1\n\nw\n" | \ |
| ~/src/busybox/busybox fdisk -C 16065 -H 255 -S 63 ./img |
| # as root, associate the image with a look-device: |
| # The offset of 512 comes from the the layout of the image. See |
| # ~/src/busybox/busybox fdisk -C 16065 -H 255 -S 63 -l ./img for the start |
| # block and multiply this with the block size (==512). |
| ~/src/busybox/busybox losetup -o 512 /dev/loop/0 /path/to/the/img |
| # create some filesystem on it, for example ext2 |
| mkfs.ext2 -m0 -Lslash /dev/loop/0 |
| # mount it and copy your stuff to it |
| ~/src/busybox/busybox mount -oloop,rw /dev/loop/0 /media/l0 |
| ~/src/busybox/busybox mkdir -p /media/l0/boot/grub |
| ~/src/busybox/busybox cp -a project_build_i386/root/boot/grub/stage? /media/l0/boot/grub/ |
| ~/src/busybox/busybox cp -a project_build_i386/root/boot/bzImage /media/l0/boot/ |
| ~/src/busybox/busybox cat > /media/l0/boot/grub/menu.lst <<EOF |
| title=GNU/Linux |
| root (hd0,0) |
| kernel /boot/bzImage |
| EOF |
| # finally unmount the dist and disassociate the loopdev |
| ~/src/busybox/busybox umount /media/l0 |
| ~/src/busybox/busybox losetup -d /dev/loop/0 |
| # now install grub from the chroot |
| ~/src/busybox/busybox losetup /dev/loop/0 /path/to/the/img |
| project_build_i386/root/usr/sbin/grub --device-map=/dev/null |
| device (hd0) img |
| geometry (hd0) 16065 255 63 |
| root (hd0,0) |
| setup (hd0) |
| quit |
| # finally boot the thing |
| /opt/qemu-trunk_ggi-2.2.2/bin/qemu -snapshot -hda img -boot c |
