test_description="mke2fs with offset option (-E offset=N)"
OUT="$test_name.log"

echo "testing mke2fs with -E offset=524288 option" > "$OUT"
yes a | dd of="$TMPFILE" bs=1k count=2048 2>/dev/null
$MKE2FS -F -b 1024 -E offset=524288 "$TMPFILE" 1024 >> "$OUT" 2>&1
# compute crc of the first and last 512 1k blocks
crc_first=`dd if="$TMPFILE" bs=1k count=512 2>/dev/null | $CRCSUM`
crc_last=`dd if="$TMPFILE" bs=1k count=512 skip=1536 2>/dev/null | $CRCSUM`
crc_exp=`yes a | dd bs=1k count=512 2>/dev/null | $CRCSUM`

if [ "$crc_first" = "$crc_last" -a "$crc_first" = "$crc_exp" ]; then
	echo "$test_name: $test_description: ok"
	touch "$test_name.ok"
else
	echo "$test_name: $test_description: failed"
	echo "crc_first: $crc_first" > "$test_name.failed"
	echo "crc_last: $crc_last" >> "$test_name.failed"
	echo "crc_exp: $crc_exp" >> "$test_name.failed"
fi