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Refresh GRUB scripts, config, and integration documentation

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Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
This commit is contained in:
Vasilito
2026-04-18 00:48:58 +01:00
parent 90168fb789
commit 8ca7e02398
2449 changed files with 1155215 additions and 38 deletions
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local/scripts/grub-install
+28 -33
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@@ -5,17 +5,12 @@
# Maps standard grub-install switches to Red Bear OS cookbook/ESP workflow.
#
# Usage:
# grub-install [OPTIONS] INSTALL_DEVICE
# grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=REDBEAR /dev/sda
# grub-install --target=x86_64-efi --removable /dev/sda
#
# For disk images (Red Bear OS build workflow):
# grub-install --target=x86_64-efi --disk-image=build/x86_64/harddrive.img
#
# Differences from Linux GRUB:
# --disk-image=FILE Install into a disk image file instead of a block device
# Modules are pre-selected for Red Bear OS (chainload to Redox bootloader)
# No NVRAM/efibootmgr integration (Red Bear OS uses removable boot path)
# Red Bear OS only supports --disk-image mode (writes to disk image files).
# Block-device installation (--efi-directory, /dev/sda) is NOT supported.
# Flags like --efi-directory and --boot-directory are accepted for script
# compatibility but have no effect.
set -euo pipefail
@@ -45,30 +40,30 @@ Options:
--boot-directory=DIR Install GRUB images in DIR/grub (default: /boot)
--disk-image=FILE Install into disk image FILE (Red Bear OS extension)
--modules=MODULES Pre-load specified modules
--removable Install to EFI/BOOT/BOOTX64.EFI (removable media path)
--removable Accepted for compatibility (GRUB always uses removable path)
--no-nvram Don't update NVRAM (accepted, always implied)
--skip-partition Don't modify partition table
--skip-partition Accepted for compatibility (no effect)
-v, --verbose Verbose output
-?, --help Give this help list
-V, --version Print program version
Supported targets: x86_64-efi
INSTALL_DEVICE is a system device filename (e.g. /dev/sda) or omitted when
using --disk-image.
Red Bear OS only supports --disk-image mode.
Flags --efi-directory, --boot-directory, --bootloader-id, --removable, --modules
are accepted for Linux script compatibility but ignored.
INSTALL_DEVICE (block device path) is rejected with an error.
Examples:
# Install to block device with mounted ESP
$PROG --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=REDBEAR /dev/sda
# Install to removable media (no bootloader ID needed)
$PROG --target=x86_64-efi --removable /dev/sda
# Install into a Red Bear OS disk image
# Install into a Red Bear OS disk image (primary use case)
$PROG --target=x86_64-efi --disk-image=build/x86_64/harddrive.img
# Build full image via Red Bear installer
# Build full image via Red Bear installer (alternative)
make all CONFIG_NAME=redbear-full-grub
Note: Only --disk-image mode is implemented. Block-device installation
(INSTALL_DEVICE) is rejected with an error. Other block-device flags
(--efi-directory, --boot-directory) are accepted for compatibility but ignored.
EOF
exit 0
}
@@ -181,7 +176,7 @@ if [ -n "$TARGET" ] && [ "$TARGET" != "x86_64-efi" ]; then
fi
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
REPO_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
FAT_TOOL="$SCRIPT_DIR/fat_tool.py"
# Mode 1: Disk image installation (Red Bear OS build workflow)
@@ -199,6 +194,7 @@ if [ -n "$DISK_IMAGE" ]; then
# Find GRUB EFI binary
GRUB_EFI=""
for f in "$REPO_ROOT/local/recipes/core/grub/target/x86_64-unknown-redox/stage/usr/lib/boot/grub.efi" \
"$REPO_ROOT/recipes/core/grub/target/x86_64-unknown-redox/stage/usr/lib/boot/grub.efi" \
"$REPO_ROOT/repo/x86_64-unknown-redox/grub/root/usr/lib/boot/grub.efi"; do
if [ -f "$f" ]; then
GRUB_EFI="$f"
@@ -215,7 +211,7 @@ if [ -n "$DISK_IMAGE" ]; then
# Find Redox bootloader
REDBEAR_EFI=""
for f in "$REPO_ROOT/local/recipes/core/bootloader/target/x86_64-unknown-redox/stage/usr/lib/boot/bootloader.efi" \
for f in "$REPO_ROOT/recipes/core/bootloader/target/x86_64-unknown-redox/stage/usr/lib/boot/bootloader.efi" \
"$REPO_ROOT/repo/x86_64-unknown-redox/bootloader/root/usr/lib/boot/bootloader.efi"; do
if [ -f "$f" ]; then
REDBEAR_EFI="$f"
@@ -240,16 +236,15 @@ if [ -n "$DISK_IMAGE" ]; then
# ESP at LBA 2048 (standard Redox GPT layout)
ESP_OFFSET=$((2048 * 512))
# Write GRUB to ESP
if [ "$REMOVABLE" -eq 1 ]; then
BOOT_PATH="EFI/BOOT"
else
BOOT_PATH="EFI/${BOOTLOADER_ID}"
fi
# GRUB always goes to EFI/BOOT — this matches the installer-native path
# (with_whole_disk creates EFI/BOOT/BOOTX64.EFI for GRUB).
# The --bootloader-id flag is accepted for Linux compatibility but
# on Red Bear OS the UEFI firmware expects the standard removable path.
BOOT_PATH="EFI/BOOT"
"$FAT_TOOL" mkdir "$DISK_IMAGE" "$ESP_OFFSET" "EFI" 2>/dev/null || true
"$FAT_TOOL" mkdir "$DISK_IMAGE" "$ESP_OFFSET" "$BOOT_PATH" 2>/dev/null || true
"$FAT_TOOL" mkdir "$DISK_IMAGE" "$ESP_OFFSET" "EFI/REDBEAR" 2>/dev/null || true
"$FAT_TOOL" mkdir "$DISK_IMAGE" "$ESP_OFFSET" "EFI"
"$FAT_TOOL" mkdir "$DISK_IMAGE" "$ESP_OFFSET" "$BOOT_PATH"
"$FAT_TOOL" mkdir "$DISK_IMAGE" "$ESP_OFFSET" "EFI/REDBEAR"
"$FAT_TOOL" cp-in "$DISK_IMAGE" "$ESP_OFFSET" "$GRUB_EFI" "$BOOT_PATH/BOOTX64.EFI"
[ "$VERBOSE" -eq 1 ] && echo "$PROG: installed GRUB to $BOOT_PATH/BOOTX64.EFI"
@@ -264,7 +259,7 @@ if [ -n "$DISK_IMAGE" ]; then
exit 0
fi
# Mode 2: Full image build via Red Bear installer (INSTALL_DEVICE given)
# Mode 2: Block-device installation (not supported)
if [ -n "$INSTALL_DEVICE" ]; then
echo "$PROG: block device installation is not supported by this wrapper." >&2
echo "$PROG: For Red Bear OS, use one of:" >&2