mirror of
https://github.com/Start9Labs/start-os.git
synced 2026-03-26 18:31:52 +00:00
106 lines
3.0 KiB
Bash
Executable File
106 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
set -e
|
|
|
|
function mktmpfifo () {
|
|
TMP_PATH=$(mktemp)
|
|
rm $TMP_PATH
|
|
mkfifo $TMP_PATH
|
|
echo $TMP_PATH
|
|
}
|
|
|
|
if ! which pv > /dev/null; then
|
|
>&2 echo 'This script would like to use `pv` to show a progress indicator, but it is not installed.'
|
|
if which apt-get > /dev/null; then
|
|
read -p "Install? [y/N]" -n 1 -r
|
|
echo
|
|
if [[ "$REPLY" =~ ^[Yy]$ ]]; then
|
|
sudo apt-get install pv
|
|
fi
|
|
elif which pacman > /dev/null; then
|
|
read -p "Install? [y/N]" -n 1 -r
|
|
echo
|
|
if [[ "$REPLY" =~ ^[Yy]$ ]]; then
|
|
sudo pacman -S pv
|
|
fi
|
|
elif which brew > /dev/null; then
|
|
read -p "Install? [y/N]" -n 1 -r
|
|
echo
|
|
if [[ "$REPLY" =~ ^[Yy]$ ]]; then
|
|
brew install pv
|
|
fi
|
|
else
|
|
>&2 echo 'This script does not recognize what package manager you have available on your system.'
|
|
>&2 echo 'Please go install the utility manually if you want progress reporting.'
|
|
fi
|
|
fi
|
|
|
|
if [[ "$(uname)" == "Darwin" ]]; then
|
|
>&2 echo 'OSX not supported'
|
|
exit 1
|
|
fi
|
|
|
|
if ! test -e /dev/disk/by-label/green; then
|
|
>&2 echo '`green` partition not found'
|
|
exit 1
|
|
fi
|
|
export SOURCE_PARTITION=$(readlink -f /dev/disk/by-label/green)
|
|
|
|
if [[ "$SOURCE_PARTITION" =~ ^/dev/loop ]]; then
|
|
>&2 echo 'You are currently ripping from a loop device.'
|
|
>&2 echo 'This is probably a mistake, and usually means you failed to detach a .img file.'
|
|
read -p "Continue anyway? [y/N]" -n 1 -r
|
|
echo
|
|
if ! [[ "$REPLY" =~ ^[Yy]$ ]]; then
|
|
exit 1
|
|
fi
|
|
fi
|
|
|
|
sudo e2fsck -f ${SOURCE_PARTITION}
|
|
sudo resize2fs -M ${SOURCE_PARTITION}
|
|
export BLOCK_INFO=$(sudo dumpe2fs ${SOURCE_PARTITION})
|
|
export BLOCK_COUNT=$(echo "$BLOCK_INFO" | grep "Block count:" | sed 's/Block count:\s\+//g')
|
|
export BLOCK_SIZE=$(echo "$BLOCK_INFO" | grep "Block size:" | sed 's/Block size:\s\+//g')
|
|
export FS_SIZE=$[$BLOCK_COUNT*$BLOCK_SIZE]
|
|
|
|
echo "Ripping $FS_SIZE bytes from $SOURCE_PARTITION"
|
|
if which pv > /dev/null; then
|
|
sudo cat ${SOURCE_PARTITION} | head -c $FS_SIZE | pv -s $FS_SIZE | sudo dd of=update.img bs=1M iflag=fullblock oflag=direct conv=fsync 2>/dev/null
|
|
else
|
|
sudo cat ${SOURCE_PARTITION} | head -c $FS_SIZE | sudo dd of=update.img bs=1M iflag=fullblock oflag=direct conv=fsync
|
|
fi
|
|
echo Verifying...
|
|
export INPUT_HASH=$(mktemp)
|
|
export OUTPUT_HASH=$(mktemp)
|
|
if which pv > /dev/null; then
|
|
export PV_IN=$(mktmpfifo)
|
|
fi
|
|
sudo cat ${SOURCE_PARTITION} | head -c $FS_SIZE | tee -a $PV_IN | sha256sum > $INPUT_HASH &
|
|
export INPUT_CHILD=$!
|
|
sudo cat update.img | head -c $FS_SIZE | tee -a $PV_IN | sha256sum > $OUTPUT_HASH &
|
|
export OUTPUT_CHILD=$!
|
|
if which pv > /dev/null; then
|
|
pv -s $[$FS_SIZE*2] < $PV_IN > /dev/null &
|
|
fi
|
|
wait $INPUT_CHILD $OUTPUT_CHILD
|
|
if which pv > /dev/null; then
|
|
rm $PV_IN
|
|
fi
|
|
if ! [[ "$(cat $INPUT_HASH)" == "$(cat $OUTPUT_HASH)" ]]; then
|
|
rm $INPUT_HASH $OUTPUT_HASH
|
|
>&2 echo Verification Failed
|
|
exit 1
|
|
fi
|
|
rm $INPUT_HASH $OUTPUT_HASH
|
|
echo "Verification Succeeded"
|
|
|
|
sudo e2label update.img red
|
|
echo "Image Relabeled to \"red\""
|
|
|
|
echo "Compressing..."
|
|
if which pv > /dev/null; then
|
|
cat update.img | pv -s $FS_SIZE | gzip > update.img.gz
|
|
else
|
|
cat update.img | gzip > update.img.gz
|
|
fi
|