a9e791c905
As somewhat of a hack, allow flashing only the EC by deleting the `firmware.rom` file before running `flash.sh`. Signed-off-by: Tim Crawford <tcrawford@system76.com>
108 lines
2.5 KiB
Bash
Executable File
108 lines
2.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -e
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if [ -z "$1" ]
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then
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echo "$0 <model>" >&2
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exit 1
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fi
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MODEL="$1"
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if [ ! -d "models/${MODEL}" ]
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then
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echo "model '${MODEL}' not found" >&2
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exit 1
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fi
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DMI_MODEL="$(cat /sys/class/dmi/id/product_version)"
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if [ "${DMI_MODEL}" != "${MODEL}" ]
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then
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echo "Refusing to flash model '${MODEL}' to model '${DMI_MODEL}'" >&2
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exit 1
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fi
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# Define base directory for firmware-update
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export BASEDIR="system76-firmware-update"
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# Clean build directory
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mkdir -p build
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BUILD="$(realpath "build/${MODEL}")"
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rm -rf "${BUILD:?}/${BASEDIR}"
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mkdir -p "${BUILD}/${BASEDIR}"
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# Rebuild and copy firmware-update
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pushd apps/firmware-update >/dev/null
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rm -rf "build/x86_64-unknown-uefi"
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make "build/x86_64-unknown-uefi/boot.efi"
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cp -v "build/x86_64-unknown-uefi/boot.efi" "${BUILD}/${BASEDIR}"
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cp -rv "res" "${BUILD}/${BASEDIR}"
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popd >/dev/null
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# Copy firmware
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mkdir -p "${BUILD}/${BASEDIR}/firmware"
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if [ -f "${BUILD}/firmware.rom" ]
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then
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cp -v "${BUILD}/firmware.rom" "${BUILD}/${BASEDIR}/firmware"
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fi
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if [ -f "${BUILD}/ec.rom" ]
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then
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cp -v "${BUILD}/ec.rom" "${BUILD}/${BASEDIR}/firmware"
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fi
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# Locate EFI partition mount path
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EFI_PATH="$(bootctl --print-esp-path)"
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if [ -z "${EFI_PATH}" ] || [ ! -d "${EFI_PATH}" ]
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then
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echo "EFI system partition '${EFI_PATH}' not found" >&2
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exit 1
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fi
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# Locate EFI partition
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EFI_PART_NAME="$(awk '$2 == "'"${EFI_PATH}"'"' /proc/mounts | awk '{print $1}' | awk -F/ '{print $3}')"
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if [ -z "${EFI_PART_NAME}" ]
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then
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echo "EFI system partition name not found" >&2
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exit 1
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fi
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EFI_PART="$(cat "/sys/class/block/${EFI_PART_NAME}/partition")"
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# Locate EFI disk
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EFI_DISK=""
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for block in /sys/block/*; do
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if test -e "${block}/${EFI_PART_NAME}"
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then
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EFI_DISK="/dev/$(basename "${block}")"
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break
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fi
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done
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if [ -z "${EFI_DISK}" ]
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then
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echo "EFI system partition disk device not found" >&2
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exit 1
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fi
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# Install to EFI_PATH
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sudo rsync -rv --delete "${BUILD}/${BASEDIR}/" "${EFI_PATH}/${BASEDIR}/"
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# Ensure boot num is deleted
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if [ -f /sys/firmware/efi/efivars/Boot1776-8be4df61-93ca-11d2-aa0d-00e098032b8c ]
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then
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sudo efibootmgr --quiet --bootnum 1776 --delete-bootnum
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fi
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# Add entry to EFI boot variables
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sudo efibootmgr \
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--quiet \
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--create \
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--bootnum 1776 \
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--disk "${EFI_DISK}" \
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--part "${EFI_PART}" \
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--loader "\\${BASEDIR}\\boot.efi" \
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--label "${BASEDIR}"
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# Set entry as next boot item
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sudo efibootmgr --quiet --bootnext 1776
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echo "Reboot to flash firmware"
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