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update t440p script

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This commit is contained in:
Timothy Pidashev
2026-04-14 01:16:13 -07:00
parent cf15115731
commit aaa53d6a09
19 changed files with 1046 additions and 11 deletions
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coreboot-t440p/config.sh
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#!/bin/sh
# Configuration for coreboot-t440p interactive script
# Paths
WORK_DIR="${WORK_DIR:-$HOME/t440p-coreboot}"
COREBOOT_DIR="$WORK_DIR/coreboot"
# The coreboot commit known to work with this guide
COREBOOT_COMMIT="e1e762716cf925c621d58163133ed1c3e006a903"
# Blob paths (populated after extraction)
BLOB_IFD="$WORK_DIR/ifd.bin"
BLOB_ME="$WORK_DIR/me.bin"
BLOB_GBE="$WORK_DIR/gbe.bin"
BLOB_MRC="$WORK_DIR/mrc.bin"
ORIGINAL_ROM="$WORK_DIR/t440p-original.rom"
# Expected ROM sizes in bytes
SIZE_4MB=4194304
SIZE_8MB=8388608
SIZE_12MB=12582912
# Detect the Linux distribution
detect_distro() {
if [ -f /etc/os-release ]; then
. /etc/os-release
case "$ID" in
arch|manjaro|endeavouros|artix|garuda)
DISTRO="arch" ;;
debian|ubuntu|pop|linuxmint|elementary|zorin|kali)
DISTRO="debian" ;;
fedora|centos|rhel|rocky|alma|nobara)
DISTRO="fedora" ;;
gentoo|funtoo)
DISTRO="gentoo" ;;
nixos)
DISTRO="nix" ;;
*)
DISTRO="unknown" ;;
esac
elif command -v nix-env >/dev/null 2>&1; then
DISTRO="nix"
elif command -v pacman >/dev/null 2>&1; then
DISTRO="arch"
elif command -v apt >/dev/null 2>&1; then
DISTRO="debian"
elif command -v dnf >/dev/null 2>&1; then
DISTRO="fedora"
elif command -v emerge >/dev/null 2>&1; then
DISTRO="gentoo"
else
DISTRO="unknown"
fi
export DISTRO
}
# Create working directory
setup_work_dir() {
if [ ! -d "$WORK_DIR" ]; then
mkdir -p "$WORK_DIR"
fi
}
coreboot-t440p/main.sh
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#!/bin/sh
# Coreboot T440p Interactive Installer
# https://timmypidashev.dev/blog/thinkpad-t440p-coreboot-guide
set -e
# Resolve script directory
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
# Source dependencies
. "$SCRIPT_DIR/utils.sh"
. "$SCRIPT_DIR/config.sh"
. "$SCRIPT_DIR/system.sh"
# Source all step scripts
for _step_file in "$SCRIPT_DIR/steps/"*.sh; do
[ -f "$_step_file" ] && . "$_step_file"
done
# Disable set -e after sourcing (we handle errors per-step)
set +e
# --- Banner ---
show_banner() {
printf "${BOLD}${PURPLE}"
echo ""
echo " ╔════════════════════════════════════════════════════╗"
echo " ║ Coreboot T440p Interactive Installer ║"
echo " ╚════════════════════════════════════════════════════╝"
printf "${NC}"
echo ""
echo " Guide: timmypidashev.dev/blog/thinkpad-t440p-coreboot-guide"
echo ""
}
# --- Step runner ---
# Run a step function with retry/skip handling
run_step() {
_step_num="$1"
_step_name="$2"
_step_func="$3"
printf "\n${BOLD}${CYAN}[Step %s/12] %s${NC}\n" "$_step_num" "$_step_name"
echo ""
while true; do
"$_step_func"
_rc=$?
if [ $_rc -eq 0 ]; then
return 0
fi
# Step failed - ask what to do
handle_failure "$_step_name"
_decision=$?
if [ $_decision -eq 0 ]; then
# Skip
warn "Skipping: $_step_name"
return 0
fi
# Otherwise retry (loop continues)
done
}
# --- Main flow ---
run_full_install() {
_start="${1:-1}"
[ "$_start" -le 1 ] && run_step 1 "Install Dependencies" install_dependencies
[ "$_start" -le 2 ] && run_step 2 "Verify CH341A Programmer" step_attach_ch341a
[ "$_start" -le 3 ] && run_step 3 "Extract Original BIOS" step_extract_bios
[ "$_start" -le 4 ] && run_step 4 "Verify BIOS Backups" step_backup_bios
[ "$_start" -le 5 ] && run_step 5 "Combine BIOS Images" step_combine_bios
[ "$_start" -le 6 ] && run_step 6 "Clone Coreboot Repository" step_clone_coreboot
[ "$_start" -le 7 ] && run_step 7 "Build ifdtool & Extract Blobs" step_build_ifdtool
[ "$_start" -le 8 ] && run_step 8 "Build cbfstool" step_build_cbfstool
[ "$_start" -le 9 ] && run_step 9 "Obtain mrc.bin" step_build_peppy
[ "$_start" -le 10 ] && run_step 10 "Configure Coreboot" step_configure
[ "$_start" -le 11 ] && run_step 11 "Build Coreboot" step_build_bios
[ "$_start" -le 12 ] && run_step 12 "Flash Coreboot" step_flash_bios
echo ""
printf "${BOLD}${GREEN}"
echo " ╔════════════════════════════════════════════════════╗"
echo " ║ All steps complete! ║"
echo " ╚════════════════════════════════════════════════════╝"
printf "${NC}\n"
}
# --- Entry point ---
main() {
show_banner
detect_distro
info "Detected distro: $DISTRO"
setup_work_dir
info "Working directory: $WORK_DIR"
echo ""
echo " What would you like to do?"
echo ""
echo " 1) Full install - Run all steps from the beginning"
echo " 2) Resume from step - Start from a specific step"
echo " 3) Update coreboot - Internal flash (already running coreboot)"
echo " 4) Revert to original - Restore original BIOS"
echo " 5) Quit"
echo ""
printf "${CYAN}Choice [1-5]:${NC} "
read -r _choice
case "$_choice" in
1)
run_full_install 1
;;
2)
echo ""
echo " Steps:"
echo " 1. Install dependencies 7. Build ifdtool & extract blobs"
echo " 2. Verify CH341A programmer 8. Build cbfstool"
echo " 3. Extract original BIOS 9. Obtain mrc.bin"
echo " 4. Verify BIOS backups 10. Configure coreboot"
echo " 5. Combine BIOS images 11. Build coreboot"
echo " 6. Clone coreboot repo 12. Flash coreboot"
echo ""
_start=$(prompt_value "Start from step" "1")
run_full_install "$_start"
;;
3)
step_update_bios
;;
4)
step_revert_bios
;;
*)
echo "Exiting."
exit 0
;;
esac
}
main "$@"
coreboot-t440p/manifest.txt
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@@ -11,7 +11,7 @@ steps/backup_bios.sh
steps/combine_bios.sh
steps/clone_coreboot.sh
steps/build_ifdtool.sh
steps/build_cbfstool.tsh
steps/build_cbfstool.sh
steps/build_peppy.sh
steps/configure.sh
steps/build_bios.sh
coreboot-t440p/steps/attach_ch341a.sh
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#!/bin/sh
# Step: Verify CH341A programmer connection
step_attach_ch341a() {
section "Verify CH341A Programmer"
info "Make sure your CH341A programmer is:"
echo " 1. Connected to your computer via USB"
echo " 2. Set to 3.3V (NOT 5V!)"
echo " 3. Ribbon cable seated in the correct orientation"
echo ""
warn "Using 5V WILL damage your BIOS chip permanently!"
prompt_continue
info "Checking if flashrom detects the CH341A programmer..."
if run_cmd "flashrom --programmer ch341a_spi"; then
success "CH341A programmer detected!"
return 0
fi
error "CH341A programmer not detected."
echo ""
echo " Troubleshooting:"
echo " - Ensure the programmer is plugged in"
echo " - Try a different USB port"
echo " - Check the driver: lsusb | grep 1a86:5512"
echo " - Make sure you have permissions (try with sudo)"
echo ""
if prompt_yes_no "Retry detection?"; then
step_attach_ch341a
return $?
fi
return 1
}
coreboot-t440p/steps/backup_bios.sh
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#!/bin/sh
# Step: Verify BIOS backup integrity
step_backup_bios() {
section "Verify BIOS Backups"
cd "$WORK_DIR" || return 1
info "Verifying 4MB chip reads match..."
if diff 4mb_backup1.bin 4mb_backup2.bin >/dev/null 2>&1; then
success "4MB chip reads are identical."
else
error "4MB chip reads do NOT match!"
warn "The chip may not be reading reliably. Re-seat the programmer and try again."
return 1
fi
info "Verifying 8MB chip reads match..."
if diff 8mb_backup1.bin 8mb_backup2.bin >/dev/null 2>&1; then
success "8MB chip reads are identical."
else
error "8MB chip reads do NOT match!"
warn "The chip may not be reading reliably. Re-seat the programmer and try again."
return 1
fi
# Validate file sizes
_size_4mb=$(wc -c < 4mb_backup1.bin)
_size_8mb=$(wc -c < 8mb_backup1.bin)
info "4MB chip size: $_size_4mb bytes (expected $SIZE_4MB)"
info "8MB chip size: $_size_8mb bytes (expected $SIZE_8MB)"
if [ "$_size_4mb" -ne "$SIZE_4MB" ]; then
warn "4MB chip size mismatch. Expected $SIZE_4MB bytes, got $_size_4mb."
if ! prompt_yes_no "Continue anyway?"; then
return 1
fi
fi
if [ "$_size_8mb" -ne "$SIZE_8MB" ]; then
warn "8MB chip size mismatch. Expected $SIZE_8MB bytes, got $_size_8mb."
if ! prompt_yes_no "Continue anyway?"; then
return 1
fi
fi
success "All BIOS backups verified."
}
coreboot-t440p/steps/build_bios.sh
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#!/bin/sh
# Step: Build coreboot
step_build_bios() {
section "Build Coreboot"
cd "$COREBOOT_DIR" || return 1
if [ ! -f ".config" ]; then
error "No .config found. Run the configure step first."
return 1
fi
_nproc=$(nproc 2>/dev/null || echo 1)
# Build the cross-compiler
info "Building cross-compiler toolchain (this will take a while)..."
info "Using $_nproc parallel jobs."
run_cmd "make crossgcc-i386 CPUS=$_nproc" || return 1
success "Cross-compiler ready."
# Build coreboot
echo ""
info "Building coreboot..."
run_cmd "make -j$_nproc" || return 1
if [ ! -f "$COREBOOT_DIR/build/coreboot.rom" ]; then
error "coreboot.rom not found after build."
return 1
fi
_size=$(wc -c < "$COREBOOT_DIR/build/coreboot.rom")
success "Build complete: $COREBOOT_DIR/build/coreboot.rom ($_size bytes)"
}
coreboot-t440p/steps/build_cbfstool.sh
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#!/bin/sh
# Step: Build cbfstool
step_build_cbfstool() {
section "Build cbfstool"
info "Building cbfstool (Coreboot Filesystem tool)..."
cd "$COREBOOT_DIR" || return 1
run_cmd "make -C util/cbfstool" || return 1
if [ ! -f "$COREBOOT_DIR/util/cbfstool/cbfstool" ]; then
error "cbfstool binary not found after build."
return 1
fi
success "cbfstool built."
}
coreboot-t440p/steps/build_ifdtool.sh
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#!/bin/sh
# Step: Build ifdtool and extract firmware blobs
step_build_ifdtool() {
section "Build ifdtool & Extract Firmware Blobs"
# Build ifdtool
info "Building ifdtool (Intel Firmware Descriptor tool)..."
cd "$COREBOOT_DIR/util/ifdtool" || return 1
run_cmd "make" || return 1
if [ ! -f "$COREBOOT_DIR/util/ifdtool/ifdtool" ]; then
error "ifdtool binary not found after build."
return 1
fi
success "ifdtool built."
# Extract firmware blobs from the original ROM
echo ""
info "Extracting firmware blobs from original BIOS..."
if [ ! -f "$ORIGINAL_ROM" ]; then
error "Original ROM not found: $ORIGINAL_ROM"
error "Complete the BIOS extraction steps first."
return 1
fi
run_cmd "./ifdtool -x $ORIGINAL_ROM" || return 1
# Move blobs to working directory
if [ -f "flashregion_0_flashdescriptor.bin" ]; then
mv flashregion_0_flashdescriptor.bin "$BLOB_IFD"
success "Extracted: ifd.bin (flash descriptor)"
else
error "Flash descriptor not found in extraction output."
return 1
fi
if [ -f "flashregion_2_intel_me.bin" ]; then
mv flashregion_2_intel_me.bin "$BLOB_ME"
success "Extracted: me.bin (Intel ME firmware)"
else
error "Intel ME firmware not found in extraction output."
return 1
fi
if [ -f "flashregion_3_gbe.bin" ]; then
mv flashregion_3_gbe.bin "$BLOB_GBE"
success "Extracted: gbe.bin (Gigabit Ethernet config)"
else
error "GbE config not found in extraction output."
return 1
fi
# Clean up any other extraction artifacts
rm -f flashregion_*.bin
echo ""
success "All firmware blobs extracted to $WORK_DIR"
}
coreboot-t440p/steps/build_peppy.sh
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#!/bin/sh
# Step: Download peppy ChromeOS image and extract mrc.bin
step_build_peppy() {
section "Obtain mrc.bin"
info "mrc.bin is a memory reference code blob needed for Haswell platforms."
info "It will be extracted from a ChromeOS peppy firmware image."
echo ""
cd "$COREBOOT_DIR/util/chromeos" || return 1
# Download peppy firmware
info "Downloading peppy ChromeOS firmware image (this may take a while)..."
run_cmd "./crosfirmware.sh peppy" || return 1
# Find the downloaded image
_peppy_image=$(ls coreboot-*.bin 2>/dev/null | head -1)
if [ -z "$_peppy_image" ]; then
error "Peppy firmware image not found after download."
return 1
fi
info "Downloaded: $_peppy_image"
# Extract mrc.bin using cbfstool
info "Extracting mrc.bin..."
run_cmd "../cbfstool/cbfstool $_peppy_image extract -f mrc.bin -n mrc.bin -r RO_SECTION" || return 1
if [ ! -f "mrc.bin" ]; then
error "mrc.bin not found after extraction."
return 1
fi
mv mrc.bin "$BLOB_MRC"
success "mrc.bin extracted to $BLOB_MRC"
# Clean up the large peppy image
if prompt_yes_default "Remove peppy firmware image to save space?"; then
rm -f coreboot-*.bin
info "Cleaned up peppy firmware image."
fi
}
coreboot-t440p/steps/clone_coreboot.sh
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#!/bin/sh
# Step: Clone and prepare the coreboot repository
step_clone_coreboot() {
section "Clone Coreboot Repository"
if [ -d "$COREBOOT_DIR" ]; then
warn "Coreboot directory already exists: $COREBOOT_DIR"
if prompt_yes_no "Remove and re-clone?"; then
rm -rf "$COREBOOT_DIR"
else
info "Using existing coreboot directory."
cd "$COREBOOT_DIR" || return 1
_current=$(git rev-parse HEAD 2>/dev/null)
if [ "$_current" = "$COREBOOT_COMMIT" ]; then
success "Already on correct commit."
return 0
else
warn "Current commit ($_current) differs from expected ($COREBOOT_COMMIT)."
if prompt_yes_no "Checkout the correct commit?"; then
run_cmd "git checkout $COREBOOT_COMMIT" || return 1
run_cmd "git submodule update --init --checkout" || return 1
fi
return 0
fi
fi
fi
info "Cloning coreboot (this may take a while)..."
run_cmd "git clone https://review.coreboot.org/coreboot $COREBOOT_DIR" || return 1
cd "$COREBOOT_DIR" || return 1
info "Checking out commit: $COREBOOT_COMMIT"
run_cmd "git checkout $COREBOOT_COMMIT" || return 1
info "Initializing submodules..."
run_cmd "git submodule update --init --checkout" || return 1
success "Coreboot repository ready."
}
coreboot-t440p/steps/combine_bios.sh
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#!/bin/sh
# Step: Combine BIOS chip images into a single ROM
step_combine_bios() {
section "Combine BIOS Images"
cd "$WORK_DIR" || return 1
info "Combining 8MB (bottom) + 4MB (top) into a single 12MB ROM..."
run_cmd "cat 8mb_backup1.bin 4mb_backup1.bin > t440p-original.rom" || return 1
_size=$(wc -c < t440p-original.rom)
info "Combined ROM size: $_size bytes"
if [ "$_size" -eq "$SIZE_12MB" ]; then
success "ROM size correct (12MB)."
else
warn "ROM size is not 12MB ($_size bytes). This may indicate an issue."
if ! prompt_yes_no "Continue anyway?"; then
return 1
fi
fi
success "Original BIOS saved: $WORK_DIR/t440p-original.rom"
echo ""
warn "Keep this file safe! You will need it if you ever want to revert."
}
coreboot-t440p/steps/configure.sh
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#!/bin/sh
# Step: Configure coreboot
step_configure() {
section "Configure Coreboot"
cd "$COREBOOT_DIR" || return 1
# Verify all blobs are present
info "Checking for required firmware blobs..."
_missing=0
for _blob in "$BLOB_IFD" "$BLOB_ME" "$BLOB_GBE" "$BLOB_MRC"; do
if [ -f "$_blob" ]; then
success "Found: $_blob"
else
error "Missing: $_blob"
_missing=1
fi
done
if [ "$_missing" -eq 1 ]; then
error "Some blobs are missing. Complete the previous steps first."
return 1
fi
echo ""
info "Choose a payload for your coreboot build:"
echo ""
echo " 1) GRUB2 - Direct Linux boot, includes memtest/nvramcui/coreinfo"
echo " 2) SeaBIOS - Traditional BIOS, best compatibility (Windows/BSD)"
echo " 3) edk2 - UEFI firmware, modern boot interface"
echo " 4) Custom - Open the full configuration menu"
echo ""
_payload=""
while [ -z "$_payload" ]; do
printf "${CYAN}Choice [1-4]:${NC} "
read -r _choice
case "$_choice" in
1) _payload="grub2" ;;
2) _payload="seabios" ;;
3) _payload="edk2" ;;
4) _payload="custom" ;;
*) echo "Please enter 1-4." ;;
esac
done
_has_dgpu="n"
if [ "$_payload" != "custom" ]; then
echo ""
if prompt_yes_no "Does your T440p have the GT730M dGPU?"; then
_has_dgpu="y"
fi
fi
if [ "$_payload" = "custom" ]; then
info "Opening full coreboot configuration..."
info "Key settings to configure:"
echo " - Mainboard vendor: Lenovo"
echo " - Mainboard model: ThinkPad T440p / W541"
echo " - Set blob paths under Chipset:"
echo " IFD: $BLOB_IFD"
echo " ME: $BLOB_ME"
echo " GbE: $BLOB_GBE"
echo " MRC: $BLOB_MRC"
echo ""
prompt_continue
make nconfig
return $?
fi
# Generate seed .config
info "Generating configuration for: $_payload"
cat > .config << COREBOOT_CONFIG
# Mainboard
CONFIG_VENDOR_LENOVO=y
CONFIG_BOARD_LENOVO_HASWELL=y
# Firmware blobs
CONFIG_HAVE_IFD_BIN=y
CONFIG_IFD_BIN_PATH="$BLOB_IFD"
CONFIG_HAVE_ME_BIN=y
CONFIG_ME_BIN_PATH="$BLOB_ME"
CONFIG_HAVE_GBE_BIN=y
CONFIG_GBE_BIN_PATH="$BLOB_GBE"
CONFIG_HAVE_MRC=y
CONFIG_MRC_FILE="$BLOB_MRC"
COREBOOT_CONFIG
# Payload-specific options
case "$_payload" in
grub2)
cat >> .config << 'GRUB_CONFIG'
# Payload
CONFIG_PAYLOAD_GRUB2=y
CONFIG_GRUB2_INCLUDE_RUNTIME_CONFIG_FILE=y
# Secondary payloads
CONFIG_PAYLOAD_FILE_IS_GRUB2=y
CONFIG_MEMTEST_SECONDARY_PAYLOAD=y
CONFIG_NVRAMCUI_SECONDARY_PAYLOAD=y
CONFIG_COREINFO_SECONDARY_PAYLOAD=y
GRUB_CONFIG
;;
seabios)
cat >> .config << 'SEABIOS_CONFIG'
# Payload
CONFIG_PAYLOAD_SEABIOS=y
CONFIG_SEABIOS_STABLE=y
SEABIOS_CONFIG
;;
edk2)
cat >> .config << 'EDK2_CONFIG'
# Payload
CONFIG_PAYLOAD_EDK2=y
EDK2_CONFIG
;;
esac
# dGPU option ROM
if [ "$_has_dgpu" = "y" ]; then
cat >> .config << 'DGPU_CONFIG'
# dGPU (GT730M) VGA option ROM
CONFIG_VGA_BIOS=y
CONFIG_VGA_BIOS_DGPU=y
DGPU_CONFIG
info "dGPU option ROM support enabled."
fi
# Fill in remaining defaults
info "Resolving full configuration with defaults..."
run_cmd "make olddefconfig" || {
warn "olddefconfig failed. Opening full configuration menu instead."
make nconfig
return $?
}
success "Configuration generated for: $_payload"
echo ""
if prompt_yes_no "Open the configuration menu to review/customize?"; then
make nconfig
fi
return 0
}
coreboot-t440p/steps/extract_bios.sh
Executable
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#!/bin/sh
# Step: Extract original BIOS from both EEPROM chips
step_extract_bios() {
section "Extract Original BIOS"
info "The T440p has two EEPROM chips that need to be read:"
echo " - 4MB (top) chip"
echo " - 8MB (bottom) chip"
echo ""
info "Each chip will be read twice to verify data integrity."
warn "Make sure the programmer is attached to the correct chip!"
cd "$WORK_DIR" || return 1
# --- 4MB chip ---
echo ""
info "Attach the programmer to the 4MB (top) chip."
prompt_continue
info "Reading 4MB chip (read 1 of 2)..."
run_cmd "sudo flashrom --programmer ch341a_spi -r 4mb_backup1.bin" || return 1
info "Reading 4MB chip (read 2 of 2)..."
run_cmd "sudo flashrom --programmer ch341a_spi -r 4mb_backup2.bin" || return 1
success "4MB chip reads complete."
# --- 8MB chip ---
echo ""
info "Now attach the programmer to the 8MB (bottom) chip."
prompt_continue
info "Reading 8MB chip (read 1 of 2)..."
run_cmd "sudo flashrom --programmer ch341a_spi -r 8mb_backup1.bin" || return 1
info "Reading 8MB chip (read 2 of 2)..."
run_cmd "sudo flashrom --programmer ch341a_spi -r 8mb_backup2.bin" || return 1
success "8MB chip reads complete."
}
coreboot-t440p/steps/flash_bios.sh
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#!/bin/sh
# Step: Flash coreboot to the T440p
step_flash_bios() {
section "Flash Coreboot"
cd "$COREBOOT_DIR/build" || return 1
if [ ! -f "coreboot.rom" ]; then
error "coreboot.rom not found. Run the build step first."
return 1
fi
# Split the ROM
info "Splitting ROM for 8MB (bottom) and 4MB (top) chips..."
run_cmd "dd if=coreboot.rom of=bottom.rom bs=1M count=8" || return 1
run_cmd "dd if=coreboot.rom of=top.rom bs=1M skip=8" || return 1
_bottom_size=$(wc -c < bottom.rom)
_top_size=$(wc -c < top.rom)
info "bottom.rom: $_bottom_size bytes"
info "top.rom: $_top_size bytes"
echo ""
warn "You are about to flash coreboot onto your T440p."
warn "Make sure your laptop is powered off and the battery is removed."
warn "DO NOT interrupt the flashing process!"
echo ""
if ! prompt_yes_no "Ready to flash?"; then
info "Flash cancelled."
return 0
fi
# Flash 4MB (top) chip
echo ""
info "Attach the programmer to the 4MB (top) chip."
prompt_continue
info "Flashing 4MB chip..."
run_cmd "sudo flashrom --programmer ch341a_spi -w top.rom" || return 1
success "4MB chip flashed."
# Flash 8MB (bottom) chip
echo ""
info "Now attach the programmer to the 8MB (bottom) chip."
prompt_continue
info "Flashing 8MB chip..."
run_cmd "sudo flashrom --programmer ch341a_spi -w bottom.rom" || return 1
success "8MB chip flashed."
echo ""
success "Coreboot has been flashed successfully!"
echo ""
info "Reassemble your laptop and power it on."
info "If everything went well, you should see coreboot boot!"
}
coreboot-t440p/steps/revert_bios.sh
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#!/bin/sh
# Step: Revert to original BIOS
step_revert_bios() {
section "Revert to Original BIOS"
if [ ! -f "$ORIGINAL_ROM" ]; then
error "Original ROM not found: $ORIGINAL_ROM"
error "Cannot revert without the original backup."
return 1
fi
echo " How would you like to revert?"
echo ""
echo " 1) Can't boot - Use external CH341A programmer"
echo " 2) Can boot - Flash internally (requires iomem=relaxed)"
echo " 3) Cancel"
echo ""
printf "${CYAN}Choice [1-3]:${NC} "
read -r _choice
case "$_choice" in
1) _revert_external ;;
2) _revert_internal ;;
*) info "Revert cancelled."; return 0 ;;
esac
}
_revert_external() {
info "Reverting via external programmer..."
echo ""
cd "$WORK_DIR" || return 1
# Split original ROM for both chips
info "Splitting original ROM..."
run_cmd "dd if=t440p-original.rom of=bottom.rom bs=1M count=8" || return 1
run_cmd "dd if=t440p-original.rom of=top.rom bs=1M skip=8" || return 1
# Flash 4MB (top) chip
info "Attach the programmer to the 4MB (top) chip."
prompt_continue
info "Flashing original 4MB chip..."
run_cmd "sudo flashrom --programmer ch341a_spi -w top.rom" || return 1
success "4MB chip restored."
# Flash 8MB (bottom) chip
echo ""
info "Now attach the programmer to the 8MB (bottom) chip."
prompt_continue
info "Flashing original 8MB chip..."
run_cmd "sudo flashrom --programmer ch341a_spi -w bottom.rom" || return 1
success "8MB chip restored."
echo ""
success "Original BIOS restored! Reassemble and power on."
}
_revert_internal() {
info "Reverting via internal flash..."
echo ""
warn "This requires the kernel parameter iomem=relaxed."
echo ""
if prompt_yes_default "Set iomem=relaxed in GRUB and reboot first?"; then
info "Adding iomem=relaxed to GRUB config..."
run_cmd "sudo sed -i '/GRUB_CMDLINE_LINUX_DEFAULT/ s/\"/ iomem=relaxed\"/2' /etc/default/grub" || return 1
run_cmd "sudo grub-mkconfig -o /boot/grub/grub.cfg" || return 1
echo ""
warn "You must reboot now for iomem=relaxed to take effect."
info "After rebooting, run this script again and choose the internal revert option."
return 0
fi
info "Flashing original BIOS internally..."
run_cmd "sudo flashrom -p internal:laptop=force_I_want_a_brick -w $ORIGINAL_ROM" || return 1
success "Original BIOS restored! Reboot to apply."
echo ""
warn "Remember to remove iomem=relaxed from your GRUB config after reverting."
}
coreboot-t440p/steps/update_bios.sh
Executable
+25
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#!/bin/sh
# Step: Update coreboot internally (when already running coreboot)
step_update_bios() {
section "Update Coreboot (Internal Flash)"
info "This updates your coreboot installation without an external programmer."
info "Only use this if your T440p is already running coreboot."
echo ""
if [ ! -f "$COREBOOT_DIR/build/coreboot.rom" ]; then
error "coreboot.rom not found. Build coreboot first."
return 1
fi
warn "This will overwrite your current BIOS using internal flashing."
if ! prompt_yes_no "Continue?"; then
return 0
fi
info "Flashing coreboot internally..."
run_cmd "sudo flashrom -p internal:laptop=force_I_want_a_brick -w $COREBOOT_DIR/build/coreboot.rom" || return 1
success "Coreboot updated! Reboot to apply."
}
coreboot-t440p/system.sh
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#!/bin/sh
# System dependency installation for coreboot-t440p
install_dependencies() {
section "Installing Dependencies"
case "$DISTRO" in
arch)
info "Installing packages via pacman..."
run_cmd "sudo pacman -S --needed base-devel curl git gcc-ada ncurses zlib nasm sharutils unzip flashrom"
;;
debian)
info "Installing packages via apt..."
run_cmd "sudo apt update"
run_cmd "sudo apt install -y build-essential curl git gnat libncurses-dev zlib1g-dev nasm sharutils unzip flashrom"
;;
fedora)
info "Installing packages via dnf..."
run_cmd "sudo dnf install -y @development-tools curl git gcc-gnat ncurses-devel zlib-devel nasm sharutils unzip flashrom"
;;
gentoo)
info "Installing packages via emerge..."
run_cmd "sudo emerge --ask sys-devel/base-devel net-misc/curl dev-vcs/git sys-devel/gcc ncurses dev-libs/zlib dev-lang/nasm app-arch/sharutils app-arch/unzip sys-apps/flashrom"
;;
nix)
info "Installing packages via nix-env..."
run_cmd "nix-env -i stdenv curl git gcc gnat ncurses zlib nasm sharutils unzip flashrom"
;;
*)
warn "Could not detect your distribution."
echo ""
echo " Please install these packages manually:"
echo " build-essential/base-devel, curl, git, gcc-ada/gnat,"
echo " ncurses, zlib, nasm, sharutils, unzip, flashrom"
echo ""
prompt_continue
return 0
;;
esac
echo ""
_missing=0
for _cmd in git make gcc flashrom; do
if check_command "$_cmd"; then
success "$_cmd found"
else
error "$_cmd not found"
_missing=1
fi
done
if [ "$_missing" -eq 1 ]; then
error "Some required tools are missing. Please install them before continuing."
return 1
fi
success "All dependencies installed."
}
coreboot-t440p/utils.sh
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#!/bin/sh
# Utility functions for coreboot-t440p interactive script
# Colors
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
PURPLE='\033[0;35m'
CYAN='\033[0;36m'
BOLD='\033[1m'
DIM='\033[2m'
NC='\033[0m'
# Logging
info() { printf "${BLUE}[*]${NC} %s\n" "$1"; }
warn() { printf "${YELLOW}[!]${NC} %s\n" "$1"; }
error() { printf "${RED}[x]${NC} %s\n" "$1"; }
success() { printf "${GREEN}[+]${NC} %s\n" "$1"; }
# Print a section header
section() {
printf "\n${BOLD}${PURPLE}--- %s ---${NC}\n\n" "$1"
}
# Prompt user to continue or quit
prompt_continue() {
printf "\n${CYAN}Press Enter to continue (or 'q' to quit)...${NC} "
read -r _response
case "$_response" in
q|Q) echo "Exiting."; exit 0 ;;
esac
}
# Prompt yes/no, default no
prompt_yes_no() {
printf "${CYAN}%s [y/N]:${NC} " "$1"
read -r _response
case "$_response" in
[yY]|[yY][eE][sS]) return 0 ;;
*) return 1 ;;
esac
}
# Prompt yes/no, default yes
prompt_yes_default() {
printf "${CYAN}%s [Y/n]:${NC} " "$1"
read -r _response
case "$_response" in
[nN]|[nN][oO]) return 1 ;;
*) return 0 ;;
esac
}
# Prompt for a value with a default
prompt_value() {
printf "${CYAN}%s [%s]:${NC} " "$1" "$2"
read -r _response
if [ -z "$_response" ]; then
echo "$2"
else
echo "$_response"
fi
}
# Check if a command is available
check_command() {
command -v "$1" >/dev/null 2>&1
}
# Run a command with display
run_cmd() {
printf " ${DIM}\$ %s${NC}\n" "$1"
eval "$1"
_status=$?
if [ $_status -ne 0 ]; then
error "Command failed (exit code $_status)"
fi
return $_status
}
# Handle step failure - ask user how to proceed
handle_failure() {
echo ""
error "Step failed: $1"
echo ""
echo " 1) Retry this step"
echo " 2) Skip and continue"
echo " 3) Quit"
echo ""
printf "${CYAN}Choice [1-3]:${NC} "
read -r _choice
case "$_choice" in
1) return 1 ;; # Signal retry
2) return 0 ;; # Signal skip
*) exit 1 ;;
esac
}