--- tests/m_offset/script.orig	2023-02-02 15:57:32 UTC
+++ tests/m_offset/script
@@ -13,7 +13,7 @@ $MKE2FS -F -b 1024 -E offset=524288 "$TMPFILE" 1024 >>
 # compute crc of the first and last 512 1k blocks
 crc_first2=`$DD if="$TMPFILE" bs=1k count=512 2>/dev/null | $CRCSUM`
 crc_last2=`$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`
+crc_exp=`yes a | $DD bs=1k count=512 iflag=fullblock 2>/dev/null | $CRCSUM`
 # a warning should be only emitted by the first mke2fs call
 warning=`grep -c "offset specified without an explicit file system size." \
 	"$OUT"`