diff options
Diffstat (limited to 'include/mrc.sh')
| -rw-r--r--[-rwxr-xr-x] | include/mrc.sh | 79 |
1 files changed, 35 insertions, 44 deletions
diff --git a/include/mrc.sh b/include/mrc.sh index 62d30a70..775831f8 100755..100644 --- a/include/mrc.sh +++ b/include/mrc.sh @@ -1,67 +1,58 @@ # SPDX-License-Identifier: GPL-2.0-only # Logic based on util/chromeos/crosfirmware.sh in coreboot cfc26ce278. -# Modifications in this version are Copyright 2021, 2023 and 2024 Leah Rowe. +# Modifications in this version are Copyright 2021,2023-2025 Leah Rowe. # Original copyright detailed in repo: https://review.coreboot.org/coreboot/ -eval "$(setvars "" MRC_url MRC_url_bkup MRC_hash MRC_board SHELLBALL)" +eval "`setvars "" MRC_url MRC_url_bkup MRC_hash MRC_board SHELLBALL`" -extract_mrc() +extract_refcode() { - [ -z "$MRC_board" ] && $err "extract_mrc $MRC_hash: MRC_board not set" - [ -z "${CONFIG_MRC_FILE}" ] && \ - $err "extract_mrc $MRC_hash: CONFIG_MRC_FILE not set" + extract_mrc - SHELLBALL="chromeos-firmwareupdate-${MRC_board}" + # cbfstool after coreboot 4.13 changed the stage file attribute scheme, + # and refcode is extracted from an image using the old scheme. we use + # cbfstool from coreboot 4.11_branch, the tree used by ASUS KGPE-D16 + chkvars cbfstoolref + x_ mkdir -p "${_pre_dest%/*}" - ( - x_ cd "${appdir}" - extract_partition "${MRC_url##*/}" - extract_archive "${SHELLBALL}" . - ) || $err "mrc download/extract failure" + x_ "$cbfstoolref" "$appdir/bios.bin" extract \ + -m x86 -n fallback/refcode -f "$appdir/ref" -r RO_SECTION - "${cbfstool}" "${appdir}/"bios.bin extract -n mrc.bin \ - -f "$_dest" -r RO_SECTION || $err "extract_mrc: cbfstool $_dest" + # enable the Intel GbE device, if told by offset MRC_refcode_gbe + [ -z "$MRC_refcode_gbe" ] || x_ dd if="config/ifd/hp820g2/1.bin" \ + of="$appdir/ref" bs=1 seek=$MRC_refcode_gbe count=1 conv=notrunc; : - [ -n "$CONFIG_REFCODE_BLOB_FILE" ] && extract_refcode; return 0 + x_ mv "$appdir/ref" "$_pre_dest" } -extract_partition() +extract_mrc() { - printf "Extracting ROOT-A partition\n" - ROOTP=$( printf "unit\nB\nprint\nquit\n" | \ - parted "${1%.zip}" 2>/dev/null | grep "ROOT-A" ) + chkvars "MRC_board" "CONFIG_MRC_FILE" + SHELLBALL="chromeos-firmwareupdate-$MRC_board" - START=$(( $( echo ${ROOTP} | cut -f2 -d\ | tr -d "B" ) )) - SIZE=$(( $( echo ${ROOTP} | cut -f4 -d\ | tr -d "B" ) )) - - dd if="${1%.zip}" of="root-a.ext2" bs=1024 \ - skip=$(( ${START} / 1024 )) count=$(( ${SIZE} / 1024 )) || \ - $err "extract_partition, dd ${1%.zip}, root-a.ext2" + ( + x_ cd "$appdir" + extract_partition "${MRC_url##*/}" + extract_archive "$SHELLBALL" . + ) || err "mrc download/extract failure" - printf "cd /usr/sbin\ndump chromeos-firmwareupdate ${SHELLBALL}\nquit" \ - | debugfs "root-a.ext2" || $err "can't extract shellball" + x_ "$cbfstool" "$appdir/"bios.bin extract -n mrc.bin \ + -f "${_pre_dest%/*}/mrc.bin" -r RO_SECTION } -extract_refcode() +extract_partition() { - _refdest="${CONFIG_REFCODE_BLOB_FILE##*../}" - [ -f "$_refdest" ] && return 0 + printf "Extracting ROOT-A partition\n" + ROOTP=$( printf "unit\nB\nprint\nquit\n" | \ + parted "${1%.zip}" 2>/dev/null | grep "ROOT-A" ) - # cbfstool changed the attributes scheme for stage files, - # incompatible with older versions before coreboot 4.14, - # so we need coreboot 4.13 cbfstool for certain refcode files - [ -n "$cbfstoolref" ] || \ - $err "extract_refcode $board: MRC_refcode_cbtree not set" - mkdir -p "${_refdest%/*}" || \ - $err "extract_refcode $board: !mkdir -p ${_refdest%/*}" + START=$(( $( echo $ROOTP | cut -f2 -d\ | tr -d "B" ) )) + SIZE=$(( $( echo $ROOTP | cut -f4 -d\ | tr -d "B" ) )) - "$cbfstoolref" "$appdir/bios.bin" extract \ - -m x86 -n fallback/refcode -f "$_refdest" -r RO_SECTION \ - || $err "extract_refcode $board: !cbfstoolref $_refdest" + x_ dd if="${1%.zip}" of="root-a.ext2" bs=1024 skip=$(( $START / 1024 )) \ + count=$(( $SIZE / 1024 )) - # enable the Intel GbE device, if told by offset MRC_refcode_gbe - [ -z "$MRC_refcode_gbe" ] || dd if="config/ifd/hp820g2/1.bin" \ - of="$_refdest" bs=1 seek=$MRC_refcode_gbe count=1 conv=notrunc || \ - $err "extract_refcode $_refdest: byte $MRC_refcode_gbe"; return 0 + printf "cd /usr/sbin\ndump chromeos-firmwareupdate %s\nquit" \ + "$SHELLBALL" | debugfs "root-a.ext2" || err "!extract shellball" } |