90 lines
1.7 KiB
Bash
Executable File
90 lines
1.7 KiB
Bash
Executable File
#!/bin/sh
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#BLACKLIST_DEVICES="/dev/sda /dev/sdb /dev/sdc /dev/sdd /dev/sde"
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BLACKLIST_DEVICES="/dev/sda"
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# 1MB blocksize
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BLOCKSIZE=1048576
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usage() {
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echo "Usage: $(basename $0) IMAGE DEVICE"
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}
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image_details() {
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IMG=$1
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echo "Image details"
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echo "============="
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echo " image: $(stat --printf '%N\n' $IMG)"
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echo " size: $(stat -L --printf '%s bytes\n' $IMG)"
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echo " modified: $(stat -L --printf '%y\n' $IMG)"
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echo " type: $(file -L -b $IMG)"
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echo ""
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}
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device_details() {
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DEV=$1
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BLOCK_SIZE=512
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echo "Device details"
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echo "=============="
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echo " device: $DEVICE"
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if [ -f "/sys/class/block/$DEV/device/vendor" ]; then
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echo " vendor: $(cat /sys/class/block/$DEV/device/vendor)"
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else
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echo " vendor: UNKOWN"
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fi
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if [ -f "/sys/class/block/$DEV/device/model" ]; then
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echo " model: $(cat /sys/class/block/$DEV/device/model)"
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else
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echo " model: UNKNOWN"
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fi
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if [ -f "/sys/class/block/$DEV/size" ]; then
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echo " size: $(($(cat /sys/class/block/$DEV/size) * $BLOCK_SIZE)) bytes"
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else
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echo " size: UNKNOWN"
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fi
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echo ""
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}
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if [ $# -ne 2 ]; then
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usage
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exit 1
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fi
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IMAGE=$1
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DEVICE=$2
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if [ ! -e "$IMAGE" ]; then
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echo "ERROR: Image $IMAGE does not exist"
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usage
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exit 1
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fi
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for i in ${BLACKLIST_DEVICES}; do
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if [ "$i" = "$DEVICE" ]; then
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echo "ERROR: Device $DEVICE is blacklisted"
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exit 1
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fi
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done
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if [ ! -w "$DEVICE" ]; then
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echo "ERROR: Device $DEVICE does not exist or is not writable"
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usage
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exit 1
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fi
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image_details $IMAGE
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device_details $(basename $DEVICE)
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printf "Write $IMAGE to $DEVICE [y/N]? "
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read RESPONSE
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if [ "$RESPONSE" != "y" ]; then
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echo "Write aborted"
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exit 0
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fi
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echo "Writing image..."
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dd if="$IMAGE" of="$DEVICE" bs="$BLOCKSIZE"
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sync
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