diff options
Diffstat (limited to 'projects/grub')
| -rw-r--r-- | projects/grub/configs/bios/size | 2 | ||||
| -rwxr-xr-x | projects/grub/grub-helper | 72 |
2 files changed, 45 insertions, 29 deletions
diff --git a/projects/grub/configs/bios/size b/projects/grub/configs/bios/size index a7625603..693832e1 100644 --- a/projects/grub/configs/bios/size +++ b/projects/grub/configs/bios/size @@ -1 +1 @@ -160 +2880 diff --git a/projects/grub/grub-helper b/projects/grub/grub-helper index 596f7d96..04814575 100755 --- a/projects/grub/grub-helper +++ b/projects/grub/grub-helper @@ -135,25 +135,31 @@ grub_build_bootable_image() { local grub_mkimage="$sources_path/grub-mkimage" local grub_module_dir="$sources_path/grub-core" - local grubimg="$build_path/grub.img" local grub_bootimg="$grub_module_dir/boot.img" - local grub_bootable_img="$build_path/grub2" + local grub_coreimg="$build_path/core.img" "$grub_mkimage" \ --config="$config_path" \ --directory="$grub_module_dir" \ - --output="$grubimg" \ + --output="$grub_coreimg" \ --format="$format" \ --prefix="$prefix" \ "${modmin[@]}" - cat "$grub_bootimg" "$grubimg" > "$grub_bootable_img" - rm -f "$grubimg" + cp -a "$grub_bootimg" "$build_path" } grub_build_floppy_image() { - local grubimg="$build_path/grub2" - local tempfile="$build_path/temp.file" + local floppyimg="$build_path/floppy.img" + local format="$(grub_format "$target" "$@")" + local grub_module_dir="$sources_path/grub-core" + local size="$(grub_size "$target" "$@")" + + local -a modules + + for module in "$grub_module_dir"/*.mod; do + modules+=($module) + done if ! grub_build_bootable_image "$@"; then printf '\n%s\n\n' "Error: Failed to build a GRUB image" 1>&2 @@ -161,33 +167,18 @@ grub_build_floppy_image() { return 1 fi - local size="$(grub_size "$target" "$@")" - - # Pre-allocate a floppy-sized image + # Pre-allocate a floppy-sized image with a FAT12 filesystem # SeaBIOS requires floppy images to have a "correct" size - if ! [[ -e "$tempfile" ]]; then - dd if=/dev/zero of="$tempfile" bs=1024 count="${size:-160}" + if ! [[ -e "$floppyimg" ]]; then + mkfs.fat -C -D 0x00 -F 12 -M 0xF9 -n SEAGRUB --invariant "$floppyimg" "$size" else - printf '\n%s\n\n' "Error: File $tempfile already exists!" 1>&2 + printf '\n%s\n\n' "Error: File $floppyimg already exists!" 1>&2 return 1 fi - local -i grubimg_size="$(stat -c %s "$grubimg")" - local -i floppy_size="$((${size:-160} * 1024))" - - # Graft the GRUB image onto the blank floppy image - if ((grubimg_size <= floppy_size)); then - dd if="$grubimg" of="$tempfile" bs=1 conv=notrunc - - rm -f "$grubimg" - mv "$tempfile" "$grubimg" - else - printf '\n%s' "Error: Image ${grubimg##*/} is too large; " 1>&2 - printf '%s\n\n' "it must be less than ${floppy_size}KiB in size" 1>&2 - - return 1 - fi + grub_floppy_image_mmd "$floppyimg" /boot /boot/grub "/boot/grub/$format" + grub_floppy_image_mcopy "$floppyimg" "/boot/grub/$format" "${modules[@]}" } grub_build_standalone_image() { @@ -216,3 +207,28 @@ grub_build_standalone_image() { --output="$grubimg" \ /boot/grub/grub.cfg="$config_path" } + +grub_floppy_image_mmd() { + local img="$1" + local -a dirs=("${@:2}") + + if [[ -n "$img" ]]; then + mmd -i "$img" "${dirs[@]}" + else + return 1 + fi +} + +grub_floppy_image_mcopy() { + local img="$1" + local target="$2" + local -a files=("${@:3}") + + if [[ -z "$img" ]]; then + return 1 + elif [[ -z "${files[@]}" ]]; then + mcopy -i "$img" -pv "::$target" + else + mcopy -i "$img" -pQv "${files[@]}" "::$target" + fi +} |