diff options
| -rwxr-xr-x | cyclone.sh | 27 |
1 files changed, 21 insertions, 6 deletions
@@ -16,8 +16,16 @@ fi SOURCE=$1 TARGET=$2 +# Make sure we're not operating on the boot drive +if [[ mount | head -n 1 | egrep -q "${SOURCE}|${TARGET}" ]]; then + echo "Error: cannot operate on the boot drive" 2>&1 + exit 1 +fi + TMPFILE="/tmp/$(uuidgen)" +trap "killall dd; rm ${TMPFILE}; echo 'Cleaning up...'; exit 255" SIGINT SIGTERM + # Get size of source diskutil info -plist $SOURCE > "${TMPFILE}".plist SOURCE_SIZE=`defaults read $TMPFILE TotalSize` @@ -27,16 +35,23 @@ diskutil info -plist $TARGET > $TMPFILE TARGET_SIZE=`defaults read $TMPFILE TotalSize` rm $TMPFILE -if [[ $TARGET_SIZE < $SOURCE_SIZE ]]; then - echo "Warning: target drive is smaller than source!" 2>&1 -fi - if [[ $TARGET_SIZE == $SOURCE_SIZE ]]; then - echo "Drives are identical, cloning with dd..." + echo "Sizes are identical, cloning with dd..." diskutil quiet unmountDisk $SOURCE diskutil quiet unmountDisk $TARGET - dd bs=16m if="/dev/r${SOURCE}" of="/dev/r${TARGET}" conv=noerror,sync + dd bs=16m if="/dev/r${SOURCE}" of="/dev/r${TARGET}" conv=noerror,sync & + DD_PID=$! + # while dd is running... + while [[ ps -ax | egrep -q -m 1 " ${DD_PID} " ]]; do + sleep 1 + kill -SIGINFO $DD_PID + done diskutil quiet mountDisk $SOURCE diskutil quiet mountDisk $TARGET exit 0 fi + +if [[ $TARGET_SIZE < $SOURCE_SIZE ]]; then + echo "Warning: target drive is smaller than source!" 2>&1 +fi + |