diff options
Diffstat (limited to 'include/mrc.sh')
| -rwxr-xr-x | include/mrc.sh | 28 |
1 files changed, 8 insertions, 20 deletions
diff --git a/include/mrc.sh b/include/mrc.sh index 9cb64e69..11b1abb2 100755 --- a/include/mrc.sh +++ b/include/mrc.sh @@ -4,7 +4,7 @@ # Modifications in this version are Copyright 2021 and 2023 Leah Rowe. # Original copyright detailed in repo: https://review.coreboot.org/coreboot/ -eval "$(setvars "" MRC_url MRC_url_bkup MRC_hash MRC_board ROOTFS SHELLBALL)" +eval "$(setvars "" MRC_url MRC_url_bkup MRC_hash MRC_board SHELLBALL)" extract_mrc() { @@ -12,13 +12,13 @@ extract_mrc() [ -z "${CONFIG_MRC_FILE}" ] && \ err "extract_mrc $MRC_hash: CONFIG_MRC_FILE not set" - ROOTFS="root-a.ext2" SHELLBALL="chromeos-firmwareupdate-${MRC_board}" ( x_ cd "${appdir}" - extract_partition - extract_shellball + extract_partition "${MRC_url##*/}" + printf "cd /usr/sbin\ndump chromeos-firmwareupdate ${SHELLBALL}\nquit" \ + | debugfs "root-a.ext2" || err "extract_mrc: can't extract shellball" extract_archive "${SHELLBALL}" . ) || err "mrc download/extract failure" @@ -28,26 +28,14 @@ extract_mrc() extract_partition() { - NAME="ROOT-A" - FILE="${MRC_url##*/}" - FILE="${FILE%.zip}" - _bs=1024 - printf "Extracting ROOT-A partition\n" ROOTP=$( printf "unit\nB\nprint\nquit\n" | \ - parted "${FILE}" 2>/dev/null | grep "${NAME}" ) + parted "${1%.zip}" 2>/dev/null | grep "ROOT-A" ) START=$(( $( echo ${ROOTP} | cut -f2 -d\ | tr -d "B" ) )) SIZE=$(( $( echo ${ROOTP} | cut -f4 -d\ | tr -d "B" ) )) - dd if="${FILE}" of="${ROOTFS}" bs=${_bs} \ - skip=$(( ${START} / ${_bs} )) count=$(( ${SIZE} / ${_bs} )) || \ - err "extract_partition, dd ${FILE}, ${ROOTFS}" -} - -extract_shellball() -{ - printf "Extracting chromeos-firmwareupdate\n" - printf "cd /usr/sbin\ndump chromeos-firmwareupdate ${SHELLBALL}\nquit" \ - | debugfs "${ROOTFS}" || err "extract_shellball: debugfs" + 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" } |