_require_scratch
# devzero blows away 512byte blocks, so make 512byte inodes
-mkfs_xfs -f -i size=512 $SCRATCH_DEV | _filter_mkfs 2>/dev/null
+mkfs_xfs -isize=512 $SCRATCH_DEV | _filter_mkfs 2>/dev/null
`xfs_db -r -c sb -c p $SCRATCH_DEV | grep 'ino = ' | \
sed -e 's/ //g' -e 's/^/export /'`