there, from clonezilla log:
```
The first partition of disk /dev/sda starts at 32768.
Restoring the hidden data between MBR (1st sector, i.e. 512 bytes) and 1st partition, which might be u
seful for some recovery tool, by:
dd if=/home/partimag/helios64-microsd_2021-07-30-21-img/sda-hidden-data-after-mbr of=/dev/sda seek=1 b
s=512 count=32767
```