19c6c2e191
Update the ddimage script to allow it to work on Mac OS too. The biggest difference is sysfs vs diskutil and in the syntax of the stat command between Mac OS and Linux, unfortunately. Workarounds using ls, cut, and columns got really fragile really quickly. Relying on stat and switching on uname seemed the more robust solution. (From OE-Core rev: 8962fe11a0697348affb8a1ab95abca4995470a6) Signed-off-by: Darren Hart <dvhart@linux.intel.com> Cc: Koen Kooi <koen@dominion.thruhere.net> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2.1 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..." dd if="$IMAGE" of="$DEVICE" bs="$BLOCKSIZE" sync