6e4b817776
This gives us a progress bar for the image write, which is quite helpful. See https://www.ivarch.com/programs/pv.shtml. (From OE-Core rev: 5b20cb2db929daaf0bf81c05368174e9c364ffab) Signed-off-by: Christopher Larson <chris_larson@mentor.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2.2 KiB
Executable File
#!/bin/sh
Default to avoiding the first two disks on typical Linux and Mac OS installs
Better safe than sorry :-)
BLACKLIST_DEVICES="/dev/sda /dev/sdb /dev/disk1 /dev/disk2"
1MB blocksize
BLOCKSIZE=1048576
usage() { echo "Usage: $(basename $0) IMAGE DEVICE" }
image_details() { IMG=$1 echo "Image details" echo "=============" echo " image: $(basename $IMG)" # stat format is different on Mac OS and Linux if [ "$(uname)" = "Darwin" ]; then echo " size: $(stat -L -f '%z bytes' $IMG)" echo " modified: $(stat -L -f '%Sm' $IMG)" else echo " size: $(stat -L -c '%s bytes' $IMG)" echo " modified: $(stat -L -c '%y' $IMG)" fi echo " type: $(file -L -b $IMG)" echo "" }
device_details() { DEV=$1 BLOCK_SIZE=512
echo "Device details"
echo "=============="
# Collect disk info using diskutil on Mac OS
if [ "$(uname)" = "Darwin" ]; then
diskutil info $DEVICE | egrep "(Device Node|Media Name|Total Size)"
return
fi
# Default / Linux information collection
echo " device: $DEVICE"
if [ -f "/sys/class/block/$DEV/device/vendor" ]; then
echo " vendor: $(cat /sys/class/block/$DEV/device/vendor)"
else
echo " vendor: UNKOWN"
fi
if [ -f "/sys/class/block/$DEV/device/model" ]; then
echo " model: $(cat /sys/class/block/$DEV/device/model)"
else
echo " model: UNKNOWN"
fi
if [ -f "/sys/class/block/$DEV/size" ]; then
echo " size: $(($(cat /sys/class/block/$DEV/size) * $BLOCK_SIZE)) bytes"
else
echo " size: UNKNOWN"
fi
echo ""
}
if [ $# -ne 2 ]; then usage exit 1 fi
IMAGE=$1 DEVICE=$2
if [ ! -e "$IMAGE" ]; then echo "ERROR: Image $IMAGE does not exist" usage exit 1 fi
for i in ${BLACKLIST_DEVICES}; do if [ "$i" = "$DEVICE" ]; then echo "ERROR: Device $DEVICE is blacklisted" exit 1 fi done
if [ ! -w "$DEVICE" ]; then echo "ERROR: Device $DEVICE does not exist or is not writable" usage exit 1 fi
image_details $IMAGE device_details $(basename $DEVICE)
printf "Write $IMAGE to $DEVICE [y/N]? " read RESPONSE if [ "$RESPONSE" != "y" ]; then echo "Write aborted" exit 0 fi
echo "Writing image..." if which pv >/dev/null 2>&1; then pv "$IMAGE" | dd of="$DEVICE" bs="$BLOCKSIZE" else dd if="$IMAGE" of="$DEVICE" bs="$BLOCKSIZE" fi sync