__ __ __ __ _____ _ _ _____ _ _ _
| \/ | \ \ / / | __ \ (_) | | / ____| | | | |
| \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | |
| |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | |
| | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | |
|_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1
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For_More_Tools:
test "$USB_DEVICE" || Error "USB or disk device (USB_DEVICE) is not set."
# Attempt to find the real USB device by trying its parent.
# Return a proper short device name using udev:
REAL_USB_DEVICE=$( readlink -f $USB_DEVICE )
test -b "$REAL_USB_DEVICE" || Error "USB or disk device '$USB_DEVICE' is not a block device"
# Check if the ReaR USB device is not accidentally mounted on other than $BUILD_DIR location:
if res=( $( grep -v $BUILD_DIR /proc/mounts | grep "^$REAL_USB_DEVICE" ) ) ; then
Error "USB or disk device '$REAL_USB_DEVICE' is already mounted on '${res[1]}'"
fi
# Try to find the parent device (as we don't want to write MBR to a partition)
# the udevinfo query yields something like
# /devices/pci0000:00/0000:00:10.0/host2/target2:0:1/2:0:1:0/block/sdb/sdb1
# we want the "sdb" part of it.
TEMP_USB_DEVICE=$(basename $(dirname $(my_udevinfo -q path -n "$REAL_USB_DEVICE")))
if [ "$TEMP_USB_DEVICE" -a -b "/dev/$TEMP_USB_DEVICE" ]; then
RAW_USB_DEVICE="/dev/$(my_udevinfo -q name -n "$TEMP_USB_DEVICE")"
elif [ "$TEMP_USB_DEVICE" -a -d "/sys/block/$TEMP_USB_DEVICE" ]; then
RAW_USB_DEVICE="/dev/$(my_udevinfo -q name -p "$TEMP_USB_DEVICE")"
# If we're passed a raw device, ala /dev/sdb, TEMP_USB_DEVICE will be set to "block"
# and RAW_USB_DEVICE won't be set. "block" is not useful. TEMP_USB_DEVICE will not be
# set if udev doesn't know anything about the device we were passed. So, if we've
# gotten here and either are not set, let's just assert what we know from udev
# about the device.
elif [ -z "$TEMP_USB_DEVICE" ] || [ -z "$RAW_USB_DEVICE" ] ; then
RAW_USB_DEVICE="/dev/$(my_udevinfo -q name -n "$REAL_USB_DEVICE")"
else
BugError "Unable to determine raw device for $REAL_USB_DEVICE"
fi
test "$RAW_USB_DEVICE" -a -b "$RAW_USB_DEVICE" || Error "Unable to determine raw device for $REAL_USB_DEVICE"