diff options
Diffstat (limited to 'resources/libreboot/install')
| -rwxr-xr-x | resources/libreboot/install/depthcharge/chromebook-flash-replace | 96 | ||||
| -rw-r--r-- | resources/libreboot/install/depthcharge/veyron_speedy/layout.txt | 2 |
2 files changed, 98 insertions, 0 deletions
diff --git a/resources/libreboot/install/depthcharge/chromebook-flash-replace b/resources/libreboot/install/depthcharge/chromebook-flash-replace new file mode 100755 index 00000000..4ad3fabd --- /dev/null +++ b/resources/libreboot/install/depthcharge/chromebook-flash-replace @@ -0,0 +1,96 @@ +#!/bin/bash + +# replace the requested parts in the flash image with separate parts images +# +# Copyright (C) 2015 Paul Kocialkowski <contact@paulk.fr> +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# + +[ "x${DEBUG+set}" = 'xset' ] && set -v + +regex="\([0-9a-fA-F]*\):\([0-9a-fA-F]*\)[[:space:]]*\(.*\)" +block=256 +layout="layout.txt" +flash=$1 + +shift 1 + +if [ ! -f "$flash" ] +then + echo "Usage: $0 [flash image] [image] ..." + exit 1 +fi + +if [ ! -f "$layout" ] +then + echo "Missing layout file: $layout" + exit 1 +fi + +flashsize=$( stat $flash -c "%s" ) + +for image in $@; do + range=$( grep "$image" "$layout" ) + name=$( echo "$range" | sed "s/$regex/\3/g" ) + file="$name.img" + + if [ -z "$range" ] || [ ! -f "$file" ] + then + echo "Invalid image name: $name" + continue + fi + + start=$( echo "$range" | sed "s/$regex/\1/g" ) + start=$( printf "%d\n" "0x$start" ) + stop=$( echo "$range" | sed "s/$regex/\2/g" ) + stop=$( printf "%d\n" "0x$stop" ) + + size=$(( $stop - $start + 1 )) + filesize=$( stat $file -c "%s" ) + + if [ $size -ne $filesize ] + then + echo "Invalid file size: expected $size, read $filesize" + continue + fi + + if [ $size -gt $flashsize ] + then + echo "Image size too big for flash" + continue + fi + + printf "Replacing $image in $flash\n\n" + + if [ $start -gt 0 ] + then + dd if=$flash of=before.img bs=$block count=$(( $start / $block )) + else + touch before.img + fi + + if [ $(( $stop + 1 )) -lt $flashsize ] + then + dd if=$flash of=after.img skip=$(( ($stop + 1) / $block )) bs=$block count=$(( ($flashsize - $stop - 1) / $block )) + else + touch after.img + fi + + cat before.img $file after.img > $flash + + rm before.img after.img + + printf "\n" +done diff --git a/resources/libreboot/install/depthcharge/veyron_speedy/layout.txt b/resources/libreboot/install/depthcharge/veyron_speedy/layout.txt new file mode 100644 index 00000000..bf397b80 --- /dev/null +++ b/resources/libreboot/install/depthcharge/veyron_speedy/layout.txt @@ -0,0 +1,2 @@ +00000000:000fffff coreboot +001eff00:001effff ro-frid |