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fix quick flash

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This commit is contained in:
Aiden McClelland
2021-10-19 16:39:17 -06:00
committed by Aiden McClelland
parent c68342ee10
commit da0eecfad8
1 changed files with 42 additions and 4 deletions
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46
build/quick-flash.sh
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@@ -12,10 +12,42 @@ else
echo
fi
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
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 ! test -e /dev/disk/by-label/green; then
>&2 echo '`green` partition not found'
exit 1
fi
export TARGET_PARTITION=$(readlink -f /dev/disk/by-label/green)
if [[ "$TARGET_PARTITION" =~ ^/dev/loop ]]; then
>&2 echo 'You are currently flashing onto 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
if ! [[ "$REPLY" =~ ^[Yy]$ ]]; then
exit 1
else
echo
fi
fi
export SOURCE_DEVICE=$(sudo losetup --show -fP eos.img)
sudo e2fsck -f ${SOURCE_DEVICE}p3
@@ -23,13 +55,19 @@ sudo resize2fs -M ${SOURCE_DEVICE}p3
export BLOCK_INFO=$(sudo dumpe2fs ${SOURCE_DEVICE}p3)
export BLOCK_COUNT=$(echo "$BLOCK_INFO" | grep "Block count:" | sed 's/Block count:\s\+//g')
export BLOCK_SIZE=$(echo "$BLOCK_INFO" | grep "Block size:" | sed 's/Block size:\s\+//g')
sudo dd if=${SOURCE_DEVICE}p3 of=/dev/disk/by-label/green count=$BLOCK_COUNT bs=$BLOCK_SIZE status=progress
export FS_SIZE=$[$BLOCK_COUNT*$BLOCK_SIZE]
echo "Flashing $FS_SIZE bytes to $TARGET_PARTITION"
if which pv > /dev/null; then
sudo cat ${SOURCE_DEVICE}p3 | head -c $FS_SIZE | pv -s $FS_SIZE | sudo dd of=${TARGET_PARTITION} bs=1M iflag=fullblock oflag=direct 2>/dev/null
else
sudo cat ${SOURCE_DEVICE}p3 | head -c $FS_SIZE | sudo dd of=${TARGET_PARTITION} bs=1M iflag=fullblock oflag=direct
fi
echo Verifying...
export INPUT_HASH=$(sudo dd if=${SOURCE_DEVICE}p3 count=$BLOCK_COUNT bs=$BLOCK_SIZE | sha256sum)
export OUTPUT_HASH=$(sudo dd if=/dev/disk/by-label/green count=$BLOCK_COUNT bs=$BLOCK_SIZE | sha256sum)
export INPUT_HASH=$(sudo cat ${SOURCE_DEVICE}p3 | head -c $FS_SIZE | sha256sum)
export OUTPUT_HASH=$(sudo cat ${TARGET_PARTITION} | head -c $FS_SIZE | sha256sum)
sudo losetup -d ${SOURCE_DEVICE}
if ! [[ "$INPUT_HASH" == "$OUTPUT_HASH" ]]; then
>&2 echo Verification Failed
exit 1
fi
echo Quick Flash Successfull
echo "Verification Succeeded"