$XFS_IO_PROG -f -c "pwrite -S 0x62 32 4" "${SCRATCH_DEV}" >> $seqres.full
echo "+ mount image"
-_scratch_mount 2>/dev/null && _fail "mount should not succeed"
+_try_scratch_mount 2>/dev/null && _fail "mount should not succeed"
echo "+ repair fs"
_scratch_xfs_repair >> $seqres.full 2>&1