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PiShrink
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if shrinking from device, copy only the relevant part

This commit is contained in:
Csaba Kiraly 2016-11-24 15:37:39 +01:00
parent e8bf195453
commit bb3982edfd
1 changed files with 7 additions and 1 deletions
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pishrink.sh
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@ -38,7 +38,13 @@ fi
#Copy to new file if requested #Copy to new file if requested
if [ -n "$2" ]; then if [ -n "$2" ]; then
echo "Copying $1 to $2..." echo "Copying $1 to $2..."
cp --reflink=auto --sparse=always "$1" "$2" if [[ -f $img ]]; then
cp --reflink=auto --sparse=always "$1" "$2"
else
imgsize=`parted -m $img unit B print | tail -1 | cut -d ':' -f 3 | tr -d 'B\n'`
imgsize=`expr $imgsize + 1`
dd if="$1" of="$2" conv=sparse count=$imgsize iflag=count_bytes bs=1M
fi
if (( $? != 0 )); then if (( $? != 0 )); then
echo "ERROR: Could not copy file..." echo "ERROR: Could not copy file..."
exit -5 exit -5