262 lines
8.1 KiB
Bash
Executable File
262 lines
8.1 KiB
Bash
Executable File
#!/bin/bash
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# grub-install — Install GRUB on a device (Red Bear OS wrapper)
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set -euo pipefail
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PROG="$(basename "$0")"
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TARGET=""
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EFI_DIRECTORY=""
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BOOTLOADER_ID="REDBEAR"
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BOOT_DIRECTORY=""
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DISK_IMAGE=""
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MODULES=""
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REMOVABLE=0
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VERBOSE=0
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INSTALL_DEVICE=""
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usage() {
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cat <<EOF
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Usage: $PROG [OPTION...] [INSTALL_DEVICE]
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Install GRUB on your drive.
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Options:
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-d, --directory=DIR Use images and modules from DIR
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--target=TARGET Target platform [x86_64-efi]
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--efi-directory=DIR Use DIR as the EFI System Partition mount point
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--bootloader-id=ID Bootloader identifier (default: REDBEAR)
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--boot-directory=DIR Install GRUB images in DIR/grub (default: /boot)
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--disk-image=FILE Install into disk image FILE (Red Bear OS extension)
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--modules=MODULES Pre-load specified modules
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--removable Accepted for compatibility (GRUB always uses removable path)
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--no-nvram Don't update NVRAM (accepted, always implied)
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--skip-partition Accepted for compatibility (no effect)
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-v, --verbose Verbose output
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-?, --help Give this help list
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-V, --version Print program version
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Supported targets: x86_64-efi
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Red Bear OS only supports --disk-image mode.
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Flags --efi-directory, --boot-directory, --bootloader-id, --removable, --modules
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are accepted for Linux script compatibility but ignored.
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INSTALL_DEVICE (block device path) is rejected with an error.
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Examples:
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# Install into a Red Bear OS disk image (primary use case)
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$PROG --target=x86_64-efi --disk-image=build/x86_64/harddrive.img
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# Build full image via Red Bear installer (alternative)
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make all CONFIG_NAME=redbear-full-grub
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Note: Only --disk-image mode is implemented. Block-device installation
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(INSTALL_DEVICE) is rejected with an error. Other block-device flags
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(--efi-directory, --boot-directory) are accepted for compatibility but ignored.
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EOF
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exit 0
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}
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version() {
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echo "$PROG (Red Bear OS) 2.12"
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echo "Compatible with GNU GRUB grub-install interface"
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exit 0
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}
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while [ $# -gt 0 ]; do
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case "$1" in
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--target=*)
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TARGET="${1#--target=}"
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shift
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;;
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--target)
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TARGET="$2"
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shift 2
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;;
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--efi-directory=*)
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EFI_DIRECTORY="${1#--efi-directory=}"
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shift
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;;
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--efi-directory)
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EFI_DIRECTORY="$2"
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shift 2
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;;
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--bootloader-id=*)
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BOOTLOADER_ID="${1#--bootloader-id=}"
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shift
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;;
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--bootloader-id)
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BOOTLOADER_ID="$2"
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shift 2
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;;
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--boot-directory=*)
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BOOT_DIRECTORY="${1#--boot-directory=}"
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shift
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;;
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--boot-directory)
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BOOT_DIRECTORY="$2"
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shift 2
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;;
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--disk-image=*)
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DISK_IMAGE="${1#--disk-image=}"
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shift
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;;
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--disk-image)
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DISK_IMAGE="$2"
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shift 2
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;;
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--modules=*)
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MODULES="${1#--modules=}"
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shift
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;;
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--modules)
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MODULES="$2"
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shift 2
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;;
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--removable)
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REMOVABLE=1
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shift
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;;
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--no-nvram|--no-nvram=*)
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shift
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;;
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--skip-partition)
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shift
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;;
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-v|--verbose)
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VERBOSE=1
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shift
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;;
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-\?|--help|-h)
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usage
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;;
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-V|--version)
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version
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;;
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-d|--directory|-k|--pubkey|--compress|--core-compress|--fonts|--install-modules|--locales|--themes|--sbat|--dtb|--disk-module|--appended-signature-size|-x|--x509key|--disable-cli|--disable-shim-lock)
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# Accept but ignore unsupported Linux GRUB options
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shift
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if [ $# -gt 0 ] && [ "${1#-}" = "$1" ]; then
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shift
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fi
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;;
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--allow-floppy|--force|--recheck)
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shift
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;;
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-*)
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echo "$PROG: unrecognized option '$1'" >&2
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echo "Try '$PROG --help' for more information." >&2
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exit 1
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;;
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*)
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INSTALL_DEVICE="$1"
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shift
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;;
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esac
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done
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[ "$VERBOSE" -eq 1 ] && echo "$PROG: target=$TARGET efi_directory=$EFI_DIRECTORY bootloader_id=$BOOTLOADER_ID removable=$REMOVABLE disk_image=$DISK_IMAGE device=$INSTALL_DEVICE"
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# Validate target
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if [ -n "$TARGET" ] && [ "$TARGET" != "x86_64-efi" ]; then
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echo "$PROG: unsupported target '$TARGET' (only x86_64-efi is supported on Red Bear OS)" >&2
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exit 1
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fi
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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REPO_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
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FAT_TOOL="$SCRIPT_DIR/fat_tool.py"
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# Mode 1: Disk image installation (Red Bear OS build workflow)
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if [ -n "$DISK_IMAGE" ]; then
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if [ ! -f "$DISK_IMAGE" ]; then
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echo "$PROG: disk image not found: $DISK_IMAGE" >&2
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exit 1
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fi
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if [ ! -f "$FAT_TOOL" ]; then
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echo "$PROG: fat_tool.py not found at $FAT_TOOL" >&2
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exit 1
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fi
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# Find GRUB EFI binary
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GRUB_EFI=""
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for f in "$REPO_ROOT/local/recipes/core/grub/target/x86_64-unknown-redox/stage/usr/lib/boot/grub.efi" \
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"$REPO_ROOT/recipes/core/grub/target/x86_64-unknown-redox/stage/usr/lib/boot/grub.efi" \
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"$REPO_ROOT/repo/x86_64-unknown-redox/grub/root/usr/lib/boot/grub.efi"; do
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if [ -f "$f" ]; then
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GRUB_EFI="$f"
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break
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fi
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done
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if [ -z "$GRUB_EFI" ]; then
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echo "$PROG: grub.efi not found. Build the GRUB recipe first: make r.grub" >&2
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exit 1
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fi
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[ "$VERBOSE" -eq 1 ] && echo "$PROG: using grub.efi: $GRUB_EFI"
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# Find Redox bootloader
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REDBEAR_EFI=""
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for f in "$REPO_ROOT/recipes/core/bootloader/target/x86_64-unknown-redox/stage/usr/lib/boot/bootloader.efi" \
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"$REPO_ROOT/repo/x86_64-unknown-redox/bootloader/root/usr/lib/boot/bootloader.efi"; do
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if [ -f "$f" ]; then
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REDBEAR_EFI="$f"
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break
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fi
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done
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if [ -z "$REDBEAR_EFI" ]; then
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echo "$PROG: bootloader.efi not found. Build the bootloader recipe first." >&2
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exit 1
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fi
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[ "$VERBOSE" -eq 1 ] && echo "$PROG: using bootloader.efi: $REDBEAR_EFI"
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# Find grub.cfg
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GRUB_CFG="$REPO_ROOT/local/recipes/core/grub/grub.cfg"
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if [ ! -f "$GRUB_CFG" ]; then
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echo "$PROG: grub.cfg not found at $GRUB_CFG" >&2
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exit 1
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fi
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# ESP at LBA 2048 (standard Redox GPT layout)
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ESP_OFFSET=$((2048 * 512))
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# GRUB always goes to EFI/BOOT — this matches the installer-native path
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# (with_whole_disk creates EFI/BOOT/BOOTX64.EFI for GRUB).
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# The --bootloader-id flag is accepted for Linux compatibility but
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# on Red Bear OS the UEFI firmware expects the standard removable path.
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BOOT_PATH="EFI/BOOT"
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"$FAT_TOOL" mkdir "$DISK_IMAGE" "$ESP_OFFSET" "EFI"
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"$FAT_TOOL" mkdir "$DISK_IMAGE" "$ESP_OFFSET" "$BOOT_PATH"
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"$FAT_TOOL" mkdir "$DISK_IMAGE" "$ESP_OFFSET" "EFI/REDBEAR"
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"$FAT_TOOL" cp-in "$DISK_IMAGE" "$ESP_OFFSET" "$GRUB_EFI" "$BOOT_PATH/BOOTX64.EFI"
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[ "$VERBOSE" -eq 1 ] && echo "$PROG: installed GRUB to $BOOT_PATH/BOOTX64.EFI"
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"$FAT_TOOL" cp-in "$DISK_IMAGE" "$ESP_OFFSET" "$GRUB_CFG" "$BOOT_PATH/grub.cfg"
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[ "$VERBOSE" -eq 1 ] && echo "$PROG: installed grub.cfg to $BOOT_PATH/grub.cfg"
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"$FAT_TOOL" cp-in "$DISK_IMAGE" "$ESP_OFFSET" "$REDBEAR_EFI" "EFI/REDBEAR/redbear.efi"
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[ "$VERBOSE" -eq 1 ] && echo "$PROG: installed Redox bootloader to EFI/REDBEAR/redbear.efi"
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echo "Installation finished. No error reported."
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exit 0
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fi
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if [ -n "$INSTALL_DEVICE" ]; then
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echo "$PROG: block device installation is not supported by this wrapper." >&2
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echo "$PROG: For Red Bear OS, use one of:" >&2
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echo "$PROG: make all CONFIG_NAME=redbear-full-grub" >&2
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echo "$PROG: redox_installer -c redbear-full-grub.toml $INSTALL_DEVICE" >&2
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exit 1
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fi
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if [ -z "$DISK_IMAGE" ] && [ -z "$INSTALL_DEVICE" ]; then
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echo "$PROG: no installation device specified." >&2
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echo "Try '$PROG --help' for more information." >&2
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exit 1
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fi
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